ir33+ Electronic controller User manual

Transcription

1 ir33+ Elecronic conroller User manual H i g h E f f i c i e n c y S o l u i o n s

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3 IMPORTANT HACCP WARNING CAREL bases he developmen of is producs on decades of experience in HVAC, on he coninuous invesmens in echnological innovaions o producs, procedures and sric qualiy processes wih in-circui and funcional esing on 100% of is producs, and on he mos innovaive producion echnology available on he marke. CAREL and is subsidiaries noneheless canno guaranee ha all he aspecs of he produc and he sofware included wih he produc respond o he requiremens of he final applicaion, despie he produc being developed according o sar-of-he-ar echniques. The cusomer (manufacurer, developer or insaller of he final equipmen) acceps all liabiliy and risk relaing o he configuraion of he produc in order o reach he expeced resuls in relaion o he specific final insallaion and/or equipmen. CAREL may, based on specific agreemens, ac as a consulan for he posiive commissioning of he final uni/applicaion, however in no case does i accep liabiliy for he correc operaion of he final equipmen/sysem. The CAREL produc is a sae-of-he-ar produc, whose operaion is specified in he echnical documenaion supplied wih he produc or can be downloaded, even prior o purchase, from he websie Each CAREL produc, in relaion o is advanced level of echnology, requires seup / configuraion / programming / commissioning o be able o operae in he bes possible way for he specific applicaion. The failure o complee such operaions, which are required/indicaed in he user manual, may cause he final produc o malfuncion; CAREL acceps no liabiliy in such cases. Only qualified personnel may insall or carry ou echnical service on he produc. The cusomer mus only use he produc in he manner described in he documenaion relaing o he produc. In addiion o observing any furher warnings described in his manual, he following warnings mus be heeded for all CAREL producs: Preven he elecronic circuis from geing we. Rain, humidiy and all ypes of liquids or condensae conain corrosive minerals ha may damage he elecronic circuis. In any case, he produc should be used or sored in environmens ha comply wih he emperaure and humidiy limis specified in he manual. Do no insall he device in paricularly ho environmens. Too high emperaures may reduce he life of elecronic devices, damage hem and deform or mel he plasic pars. In any case, he produc should be used or sored in environmens ha comply wih he emperaure and humidiy limis specified in he manual. Do no aemp o open he device in any way oher han described in he manual. Do no drop, hi or shake he device, as he inernal circuis and mechanisms may be irreparably damaged. Do no use corrosive chemicals, solvens or aggressive deergens o clean he device. Do no use he produc for applicaions oher han hose specified in he echnical manual. All of he above suggesions likewise apply o he conrollers, serial boards, programming keys or any oher accessory in he CAREL produc porfolio. CAREL adops a policy of coninual developmen. Consequenly, CAREL reserves he righ o make changes and improvemens o any produc described in his documen wihou prior warning. The echnical specificaions shown in he manual may be changed wihou prior warning. The liabiliy of CAREL in relaion o is producs is specified in he CAREL general conrac condiions, available on he websie and/or by specific agreemens wih cusomers; specifically, o he exen where allowed by applicable legislaion, in no case will CAREL, is employees or subsidiaries be liable for any los earnings or sales, losses of daa and informaion, coss of replacemen goods or services, damage o hings or people, downime or any direc, indirec, incidenal, acual, puniive, exemplary, special or consequenial damage of any kind whasoever, wheher conracual, exra-conracual or due o negligence, or any oher liabiliies deriving from he insallaion, use or impossibiliy o use he produc, even if CAREL or is subsidiaries are warned of he possibiliy of such damage. The Food Safey programs based on HACCP procedures and on cerain naional sandards require ha he devices used for food preservaion are periodically checked o make sure ha measuring errors are wihin he allowed limis for he specific applicaion. Carel recommends compliance wih he specificaions of European sandard Temperaure recorders and hermomeers for ranspor, sorage and disribuion of chilled, frozen, deep-frozen/ quick-frozen food and ice cream PERIODIC VERIFICATI, EN (or subsequen updaes) or similar sandards and requiremens applicable in he counry of use. The manual conains furher informaion regarding echnical feaure,s proper insallaion and produc configuraion. DISPOSAL HACCP Inernaional Food Safey Cerificaion Sysems This produc is approved for he use in food preservaion applicaions in compliance wih he srices sandards in he secor. INFORMATI FOR USERS THE CORRECT HANDLING OF WASTE ELECTRICAL AND ELECTRIC EQUIPMENT (WEEE) In reference o European Union direcive 2002/96/EC issued on 27 January 2003 and he relaed naional legislaion, please noe ha: WEEE canno be disposed of as municipal wase and such wase mus be colleced and disposed of separaely; he public or privae wase collecion sysems defined by local legislaion mus be used. In addiion, he equipmen can be reurned o he disribuor a he end of is working life when buying new equipmen; he equipmen may conain hazardous subsances: he improper use or incorrec disposal of such may have negaive effecs on human healh and on he environmen; he symbol (crossed-ou wheeled bin) shown on he produc or on he packaging and on he insrucion shee indicaes ha he equipmen has been inroduced ono he marke afer 13 Augus 2005 and ha i mus be disposed of separaely; in he even of illegal disposal of elecrical and elecronic wase, he penalies are specified by local wase disposal legislaion. Warrany on he maerials: 2 years (from he dae of producion, excluding consumables). Approval: he qualiy and safey of CAREL INDUSTRIES Hqs producs are guaraneed by he ISO 9001 cerified design and producion sysem. WARNING: separae as much as possible he probe and digial inpu signal cables from he cables carrying inducive loads and power cables o avoid possible elecromagneic disurbance. Never run power cables (including he elecrical panel wiring) and signal cables in he same conduis. NO POWER & SIGNAL CABLES TOGETHER READ CAREFULLY IN THE TEXT! 3

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5 Conen 1. INTRODUCTI Main feaures Accessories INSTALLATI Dimensions Panel mouning Par number lis Opional connecions ir33+ wiring diagrams Insallaion Programming key (copy se-up) Remoe display connecion Nework connecion USER INTERFACE Display ir33+ keypad Programming COMMISSIING Configuraion Loading he ses of parameers Preparing for operaion FUNCTIS Probes (analogue inpus) Digial inpus Digial oupus CTROL Swiching he conroller On/Off Virual probe Se poin Pump down Auosar in pump down Coninuous cycle Ani-swea heaer Ligh and Aux oupus Defros Evaporaor fans Condenser fans Duy seing (par. c4) Running ime defros (par. d10, d11) PARAMETER TABLE Variables only accessible via serial connecion SIGNALS AND ALARMS Signals Alarms Rese alarms HACCP alarms and display Alarm parameers and acivaion HACCP alarm parameers and monioring High condenser emperaure alarm Fros proecion alarm Defros ended by imeou alarm TECHNICAL SPECIFICATIS ir33+ echnical specificaions APPENDIX 1: VPM (VISUAL PARAMETER MANAGER) Insallaion Opening he program Compuer - key connecion Programming Modify a parameer Add a se of parameers Wrie parameers APPENDIX 2: ADVANCED FUNCTIS Skip defros Variaion of he defros inerval Defros wih 2 evaporaors Second compressor wih roaion APPENDIX 3: FOOD SAFETY - HACCP Food safey - HACCP Sensors - insallaion Parameers Repairs and mainenance Warning

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7 1. INTRODUCTI The ir33+ plaform for refrigeraion applicaions comprises a series of microprocessor-based parameric elecronic conrollers, wih LED display, designed o conrol sand-alone refrigeraion unis. These conrollers are especially suiable for applicaions requiring high load swiching power, funcions and conrol wih direc access from he keypad, high IP ingress proecion and compac dimensions. In erms of reliabiliy, all he conrollers are fied wih an elecronic device (wachdog) ha prevens he microprocessor from losing conrol, even wih high levels of elecromagneic disurbance. The ir33+ plaform is made using he mos advanced SMD echnology, and elecrical esing of all he componens fied guaranees high qualiy sandards. In summary: up o 4 relay oupus on he more complee models: compressor, fan, defros, AUX; panel insallaion (fron panel as sandard); simple insallaion wih wo plasic fasening brackes; buons flush wih he fron panel, o ensure high ingress proecion (IP65) and safey during operaion and cleaning; brigh 3 digi display, wih decimal poin and icons o denoe operaing saus; immuniy o brief power inerrupions: if he conroller deecs ha volage drops below a cerain hreshold, he display is emporarily swiched off and he conroller coninues working normally; keypad wih 4 buons; defross can be acivaed from he keypad, digial inpu, supervisor; managemen of various ypes of defros, on one or wo evaporaors: naural (sopping he compressor), heaer, ho gas; advanced defros funcions; auomaic recogniion of he nework proocol: Carel or Modbus ; parameer selecion simplified by differen icons according o he caegory; emperaure conrol wih virual conrol probe and se poin variaion a nigh; digial inpus o acivae alarms, enable or acivae defross, door / curain swich, auxiliary oupu, on/off, ec.; conrol of 1 compressor wih wo seps, or wo compressors, including roaion; keypad proecion: he funcions of he individual buons can be disabled o preven unwaned ampering; managemen of he ligh in he cabine/cold room and he curain on he cabine; VPM program (Visual Parameer Manager), running on a personal compuer, used o updae he parameers and es he conroller; alarm signal buzzer; HACCP funcions: emperaure monioring and recording in he even of high emperaure alarms during operaion and afer blackous; RS485 serial nework connecion o remoe supervisor and elemainenance sysems. The models differ in erms of: he ype of power supply: alernaing curren (12 o 24 V~, 115/230 V~, 230 V~, 50/60 Hz); direc curren (12/18 Vdc, 12/30 Vdc); he number of relay oupus. Available accessories include: serial inerface card (P/N IROPZ48500) for connecion o he RS485 nework; programming key (P/N IROPZKEY**) for reading (upload) and wriing (download) he conrol parameers; display inerface (P/N IROPZDSP00) for remoe display connecion. 1.1 Main feaures The ir33+ plaform conrollers are designed o offer maximum insallaion flexibiliy. In addiion o he conrol probe, a furher hree probes can be configured, as produc probe (display only), condenser, fros proecion and defros probe. Using he advanced defros funcions, if he condiions are righ, subsequen defross can be posponed or skipped. The digial oupus (relays) can conrol he solenoid valve or compressor, a second compressor, he evaporaor or condenser fans, defross, lighs and alarms. The digial inpus can be used for he door swich and ligh managemen, he curain swich o change over o nigh-ime operaion, o enable and sar defross, o swich he conroller on/off and o acivae of he auxiliary oupu. Finally, he conroller can also be used as simple / hermosa, for heaing applicaions. Example: verical display case and cold room. Fig. 1.a Fig. 1.b 7

8 1.2 Accessories IROPZKEY00/A0 programming key The IROPZKEY00 and IROPZKEY00A0 (powered) programming keys can be used wih he ir33+ plaform conrollers. Visual Parameer Manager (VPM) allows up o 7 differen configuraions (ses) of parameers o be loaded ono he conroller (he conroller operaing parameers plus 6 ses of cusomisable parameers). The read/wrie operaions are carried ou wih he conroller off. IROPZKEY00 IROPZKEYA0 RS485 serial inerface (P/N IROPZ48500 and IROPZ485S0) Plugged direcly ino he programming key connecor, his provides connecion o he PlanVisor supervisory sysem. The accessory has been designed as a plug-in addiion o he conroller and consequenly can be insalled following insallaion if needed. Model IROPZ485S0 feaures a microprocessor and can auomaically recognise he TxRx+ and TxRxsignals (reverse connecion). Fig. 1.h Fig. 1.c Fig. 1.d Connecion cable (P/N PSTC0*B0) Three-wire cable o connec he conroller o he LAN inerface card (P/N IROPZDSP00). Available in differen lenghs: 1.5; 3; 5 m. VPM programming ool (Visual Parameer Manager) The program can be downloaded from hp://ksa.carel.com. The ool runs on a compuer and is used o se up he conroller, change he parameer seings and updae he firmware. The USB/I2C converer P/N IROPZPRG00 is required. Fig. 1.e LAN inerface card (P/N IROPZDSP00) The LAN inerface card for remoe display is an elecronic device used o connec he conroller o a remoe display. See he insrucion shee ( ). Fig. 1.i USB/I2C converer and cable (P/N IROPZPRG00) Converer used o connec a personal compuer o an IROPZKEY00/ A0 programming key, and consequenly use he VPM program (Visual Parameer Manager) o read, se and wrie he parameers. The programming key can hen be used o program he conrollers or read he conroller parameers, and for example copy a configuraion from one conroller o he ohers. Fig. 1.f Remoe display The remoe display can be used o display one of he sysem variables. Versions are available for ir33+ is IREVXGD000. See he insrucion shee ( ). IREVXGD000 Fig. 1.j Ligh sensor (P/N PSOPZLHT00) To be insalled in he door jamb or inside he cold room Fig. 1.g Fig. 1.k 8

9 2.1 Dimensions ir33+ dima di foraura drilling emplae 71x29 mm INSTALLATI STEP 2 Apply he side fasening brackes o he conroller and use he screws o fasen i o he panel Version E, A Fig. 2.l 2.2 Panel mouning To insall he ir33+, use he 2 brackes shown in he figure. 1 2 Fig. 2.o Fig. 2.m STEP 1 Drill he holes (ø 3 mm) wih he spacing shown in he figure and make he opening for insering he ribbon cable. STEP 3 Inser he ribbon cable in he opening, aach he connecors and apply he membrane keypad. 53 mm 14,5 mm Fig. 2.p 98 mm Fig. 2.n 9

10 2.3 Par number lis ir33+ P/N power supply inpus corresponding ir33 P/N IREVM0LN0U Vac 2 NTC + 2 DI Vdc IREVM0EN0U 230 Vac 2 NTC + 1 DI IR33M0ER00 IREVS0LN0U Vac Vdc 2 NTC + 2 DI IR33S0LN00 IR33S0LR00 IREVS0EA0U 230 Vac 2 NTC + 1 DI IR33S0EA00 IREVC0LN0U Vac Vdc 2 NTC + 2 DI IR33C0LN00 IR33C0LR00 IREVC0LC0U Vac 2 NTC + 2 DI IR33C0LB Vdc IREVC0HN0U Vac 2 NTC + 2 DI IR33C0HR00 IREVC0HC0U Vac 2 NTC + 2 DI IR33C0HB00 IREVF0EN0U 230 Vac 2 NTC + 1 DI IR33F0EN00 IR33F0ER00 Tab. 2.a 2.4 Opional connecions ir33+ IREVM0LN0U L N N L POWER SUPPLY EN UL V~ 12 (2) A 12A 5FLA 30LRA -10T PROBES DI DI SERIAL and KEY LAN inerface V~ 300 ma~ max, Vdc 300 ma dc max Fig. 2.s IREVS0EA0U Maximum curren on erminal 1: 12 A R1 AUX R2 EN UL V~ POWER SUPPLY L N PROBES R1 R2 8 (4) A 8 (4) A 8A 2FLA 8A 2FLA 12LRA 12LRA SERIAL and KEY -10T60 DI 230 V~ 25 ma~ max IROPZ48500 Serial board inerface RS485 IROPZKEY** Programming key Fig IROPZDSP00 Display inerface opion Fig. 2.q 2.5 ir33+ wiring diagrams Thermomeers L N IREVM0EN0U POWER SUPPLY L EN (4) A UL V~ 8A 2FLA 12LRA -10T N PROBES DI 230V~ 25 ma~ max Fig. 2.r SERIAL and KEY IREVS0LN0U Maximum curren on erminal 3: 12 A -10T R1 N L EN UL V~ R1 12 (2) A 12A 5FLA 30LRA 8 (4) A 8A 2FLA 12LRA SERIAL and KEY LAN L N PROBES DI DI inerface V~ 300 ma~ max, Vdc 300 ma dc max Fig. 2.u Thermosas wih 3 relays: compressor, defros, evaporaor fans IREVF0EN0U Maximum curren on erminal 1: 12 A R1 R2 R3 EN (4) A 8 (4) A 5 (1) A UL V~ 8A 2FLA 8A 2FLA 5A 1FLA 12LRA 12LRA 6LRA SERIAL POWER SUPPLY and KEY T L N R3 R1 R2 L N PROBES DI 230 V~ 25 ma~ max Fig. 2.v 10

11 Thermosas wih 4 relays: compressor, defros, evaporaor fans, AUX IREVC0HN0U Maximum curren on erminal 3: 12 A N R1 R2 R3 R4 R3 R4 AUX L EN (2) A 8 (4) A 8 (4) A 8 (4) A UL V~ 12A 5FLA 8A 2FLA 8A 2FLA 8A 2FLA LRA 12LRA 12LRA 12LRA SERIAL POWER SUPPLY -10T60 and KEY R1 R3 N IREVC0HC0U R L N L PROBES DI DI V~ 50 ma~ max Fig. 2.w IREVC0LN0U IREVC0LC0U Maximum curren on erminal 3: 12 A R1 N L R4 R2 AUX LAN inerface N R1 R2 R3 R4 L EN (2) A 8 (4) A 8 (4) A 8 (4) A UL V~ 12A 5FLA 8A 2FLA 8A 2FLA 8A 2FLA 30LRA 12LRA 12LRA 12LRA -10T60 SERIAL and KEY L N LAN PROBES DI DI inerface V~ 300 ma~ max, Vdc 300 ma dc max Fig. 2.x L Line N Neural R1/R2/R3/R4 Digial oupu 1/2/3/4 (relay 1/2/3/4) AUX Auxiliary relay PROBES Probe 1/Probe 2 DI1/DI2 Digial inpu 1/ Digial inpu Insallaion To insall he conroller, proceed as follows, wih reference o he wiring diagrams shown in he previous paragraphs: 1. connec he probes and power supply: he probes can be insalled up o a maximum disance of 10 m from he conroller, using shielded cables wih a minimum cross-secion of 1 mm². To improve immuniy o disurbance, use probes wih shielded cables (connec only one end of he shield o he earh on he elecrical panel); 2. program he conroller: as shown in he chapers Commissioning and User inerface ; 3. connec he acuaors: he acuaors should only be conneced afer having programmed he conroller. Carefully check he maximum relay capaciies, as indicaed in he echnical specificaions ; 4. serial nework connecion: all conrollers are fied wih a serial connecor for connecion o he supervisor nework via he serial inerface (IROPZ485*0). The secondary of he ransformers ha supply he conrollers mus no be earhed. If connecion o a ransformer wih earhed secondary winding is required, an insulaing ransformer mus be insalled in beween. Warnings: avoid insalling he conroller in environmens wih he following characerisics: relaive humidiy greaer han 90% non-condensing; srong vibraions or knocks; exposure o coninuous waer sprays; exposure o aggressive and polluing amospheric agens (e.g.: sulphur and ammonia gases, saline mis, smoke) which may cause corrosion and/or oxidaion; srong magneic and/or radio frequency inerference (for example, near ransmiing anennae); exposure o direc sunligh and he elemens in general. The following warnings mus be observed when connecing he conrollers: incorrec connecion of he power supply may seriously damage he conroller; use cable ends suiable for he corresponding erminals. Loosen each screw and inser he cable ends, hen ighen he screws and genly pull he cables o check heir ighness. When ighening he screws, do no use auomaic screwdrivers, raher adjus ool ighening orque o less han 0.5Nm; separae as much as possible (by a leas 3 cm) he probe signal and digial inpu cables from inducive loads and power cables, o avoid any elecromagneic disurbance. Never lay power cables and probe cables in he same cable conduis (including hose for he elecrical panels). Do no insall he probe cables in he immediae viciniy of power devices (conacors, circui breakers or he like). Reduce he lengh of he sensor cables as much as possible, and avoid spirals around power devices; only use IP67 guaraneed probes as end defros probes; place he probes wih he verical bulb upwards, so as o faciliae drainage of any condensae. Remember ha hermisor emperaure probes (NTC) have no polariy, so he order he ends are conneced in is no imporan. Imporan: for 12/24 Vac versions. When connecing a series of unis o he same imer, insulae all he conacs (digial inpus) galvanically, insering an inermediae relay for each conac. Cleaning he conroller When cleaning he conroller do no use ehanol, hydrocarbons (perol), ammonia and by-producs. Use neural deergens and waer. 2.7 Programming key (copy se-up) Programming key IROPZKEY00/A0 The programming key can load up o 7 differen parameer configuraions ono he conroller (he conroller operaing parameers plus 6 ses of cusomisable defaul parameers). The keys are plugged ino he connecor (4 pin AMP) available on he conrollers. All he operaions can be performed wih he conroller off. Imporan: a separae ransformer mus be used for each conroller, - NEVER connec muliple conrollers o he same ransformer. Fig. 2.y The funcions are seleced by seing he wo dipswiches, accessible by removing he baery cover. 11

12 UPLOAD DOWNLOAD EXTENDED DOWNLOAD load he parameers from a conroller ono he key (UPLOAD); copy from he key o a conroller (DOWNLOAD); exended copy from he key o a conroller (EXTENDED DOWNLOAD). Imporan: The parameers can only be copied beween conrollers wih he same par number. The UPLOAD operaion can, however, always be performed. Copying and downloading he parameers The following operaions are used for he UPLOAD and/or DOWNLOAD funcions, simply by changing he seings of he dipswiches on he key: 1. open he rear cover on he key and posiion he 2 dipswiches according o he desired operaion; 2. close he rear cover on he key and plug he key ino he connecor on he conroller; 3. press he buon and check he LED: red for a few seconds, hen green, indicaes ha he operaion was compleed correcly. Oher signals or he flashing of he LED indicaes ha problems have occurred: see he able below; 4. a he end of he operaion, release he buon, afer a few seconds he LED goes off; 5. remove he key from he conroller. Green LED flashing Baeries discharged during copy or a end of copy Red/green Conroller no compaible LEDs flashing (orange signal) Red and green LEDs on Red LED on seady Error in daa being copied Daa ransfer error LED signal Error Meaning and soluion Red LED Baeries discharged a The baeries are discharged, he flashing sar copy copy operaion canno be performed. Replace he baeries. During he copy operaion or a he end of he operaion he baery level is low. Replace he baeries and repea he operaion. The parameer se-up canno be copied as he conneced conroller model is no compaible. This error only occurs for he DOWNLOAD funcion; check he conroller P/N and run he copy only for compaible models. Error in he daa being copied. The EEPROM on he conroller is corruped, herefore he daa canno be copied o/from he key. The copy operaion was no compleed due o a serious error when ransferring or copying he daa. Repea he operaion, if he problem persiss check he key connecions. LEDs off Baeries disconneced Check he baeries. Tab. 2.b 2.8 Remoe display connecion To connec he remoe display, use he dedicaed cable (P/N PSTC0*B0) and he LAN inerface card (P/N IROPZDSP00). See he following diagram. Also se a value >0 for parameer /E, o display he reading on he remoe display. Par. Descripion Def Min Max UOM /E Reading on remoe display No fied 4 Probe 3 1 Virual probe 5 Probe 4 2 Probe 1 6 Reserved 3 Probe 2 Tab. 2.c 2.9 Nework connecion Warnings: he RS485 converer (IROPZ485x0) is sensiive o elecrosaic discharges and herefore mus be handled wih exreme care; check he documens on he IROPZ485x0 inerface for connecion insrucions, so as o avoid damaging he conroller; fasen he converer properly so as o preven disconnecion; complee he wiring wihou power conneced; keep he IROPZ485x0 inerface cables separae from he power cables (relay oupus and power supply). The RS485 converer is used o connec he ir33+ conrollers o he supervisor nework for he complee managemen and monioring of he conneced conrollers. The sysem allows a maximum of 207 unis, wih a maximum lengh of 1000 m. Connecion requires he sandard accessories (RS485-USB converer, CAREL P/N CVSTDUMOR0) and a 120 Ω erminaing resisor o be insalled on he erminals of he las conneced conroller. Connec he RS485 converer o he conrollers and make he connecions as shown in he figure. To assign he serial address, see parameer H0. See he insrucion shees on he converers for furher informaion. Noe: he DOWNLOAD operaion (normal or exended) is possible even if he operaing and conrol parameers are incorrec; in his case, hey will be recovered from he key. Be careful when recovering he uni parameers from a key, as hese deermine he low-level operaion of he conroller (uni model, ype of inerface, assignmen of logical relay o physical relay, brighness of he display, level of modulaion of he relay conrol signal ). The uni parameers from he original model mus herefore be resored o ensure correc operaion of he conroller. Fig. 2.z 12

13 The fron panel conains he display and he keypad, made up of 4 buons ha, when pressed alone or combined wih oher buons, are used o program he conroller. The opional remoe display is used o display he emperaure measured by a second probe. 3. USER INTERFACE ir33+ User erminal IREVXGD000 Remoe display AUX Fig. 3.a Fig. 3.b 3.1 Display The user erminal display shows emperaure in range -50 o +150 C.The emperaure is displayed wih resoluion o he enhs beween 19.9 and C. In he even of alarms, he value of he probe is displayed alernaing wih he codes of he acive alarms. During programming, he erminal shows he codes and values of he parameers. The remoe display IREVXGD000 shows he emperaure wih resoluion o he enhs beween -9.9 C and19.9 C. Noe: he sandard display on he user erminal and he remoe display can be seleced by seing parameers /I and /E accordingly. Icon Funcion Normal operaion Sar-up Noes Flashing Compressor On Off Awaiing acivaion Flashes when acivaion is delayed or inhibied by proecion imes Fan On Off Awaiing acivaion Flashes when acivaion is delayed by proecion imes or oher procedures in progress Defros Acive - Awaiing Flashes when acivaion is delayed by proecion imes or oher procedures in progress AUX oupu AUX oupu 1 or 2 acive - Ani-swea heaer funcion acive Alarm Clock Ligh On if delayed alarm from digial inpu On if a imed defros has been se. If he real ime clock is fied, he icon is displayed for a few seconds during he hird sage of he sar-up procedure Auxiliary oupu (1 and/or 2) configured as ligh acive - Alarms during normal operaion (e.g. high/low emperaure alarm) or in he even of malfuncions (on ogeher wih he spanner icon) Clock alarm - Ani-swea heaer funcion acive Service Malfuncions, e.g. EEPROM errors or fauly probes HACCP HACCP funcion enabled - HACCP alarm saved (HA and/ or HF) Coninuous cycle if RTC available Coninuous cycle funcion acive - Funcion called Flashes when acivaion is delayed or inhibied by proecion imes Tab. 3.d 3.2 ir33+ keypad Buon PRG/MUTE Pressing he buon alone If pressed for more han 3 seconds, accesses he ype F parameers (frequen) or he menu for seing he password o access he ype C parameers (Configuraion); if here is an acive alarm: mues he audible alarm (buzzer). Normal operaion Pressing ogeher wih oher buons PRG+-/UP: if pressed ogeher for more han 3 seconds, reses any alarms wih manual rese Sar-up if pressed and held for more han 5 seconds a sar-up, acivaes he procedure for seing he defaul parameers 13

14 -/ UP AUX/ DOWN SET/DEF If pressed for more han 3 seconds, swiches he conroller ; he coninuous cycle; -/UP+AUX/DOWN: if pressed ogeher for more han 3 seconds, acivaes/deacivaes if pressed for more han 1 s swiches he conroller ; -/UP+ SET/DEF: if pressed ogeher for more han 3 seconds, displays he emperaure when seing he parameers, increases he value displayed or scrolls o he nex parameer. -/UP+ PRG/MUTE: if pressed ogeher for more han 3 seconds, reses any alarms read by he defros probe; wih If pressed for more han 1 s, acivaes/deacivaes he auxiliary oupu; when seing he parameers, decreases he value displayed or scrolls o he previous parameer. If pressed for more han 1 s, displays and/or les he user se he se poin; if pressed for more han 5 s, sars a manual defros. manual rese. AUX/DOWN + -/UP: if pressed ogeher for more han 3 seconds, acivaes/deacivaes he coninuous cycle; AUX/DOWN + SET/DEF: if pressed ogeher for more han 1 second, displays a submenu used o access he HACCP alarm parameers. SET/DEF+ AUX/DOWN: if pressed ogeher for more han 1 second, displays a submenu used o access he parameers relaing o he HACCP alarms; SET/DEF+ -/UP: if pressed ogeher for more han 3 seconds, displays he emperaure read by he defros probe. Tab. 3.e 3.3 Programming The operaing parameers can be modified using he fron keypad. Access differs depending on he ype: se poin, frequenly-used parameers (F) and configuraion parameers (C). The ype of parameer is specified in he able of parameers. Access o he configuraion parameers is proeced by a password for he configuraion parameers ha prevens unwaned modificaions or access by unauhorised persons. The password can be used o access and se all he conrol parameers. Seing he se poin To change he se poin S: press Se for more han 1 s: he display shows Se and hen he curren value of S; press UP/DOWN unil reaching he desired value; press Se o save he new value of S. he number 0; 3. press UP/DOWN and ener he password: 22. Press Se, he display shows parameer /2; 4. press UP or DOWN unil reaching he desired parameer: when scrolling, an icon is displayed ha represens he caegory he parameer belongs o (see he able below and he parameer able); 5. press he SET buon o display he value of he parameer; 6. press UP/DOWN unil reaching he desired value; 7. press Se o emporarily save he new value and display he parameer code again; 8. repea seps 4) o 7) o se oher parameers; 9. o permanenly save he new values of he parameers, press Prg/ Mue for 5 seconds. This exis he parameer seing procedure. Seing ype F parameers Type F parameers include he se poin, differenial, emperaure monioring inerval, inerval beween defross, end defros emperaure, dripping ime, alarm hresholds, alarm bypass imes, ec. See he parameer able. Procedure: 1. press Prg/Mue one or more imes o reurn o he sandard display; 2. press Prg/Mue for more han 3 seconds (if an alarm is acive, he buzzer is mued): he display will show he code PS (Password) and he number 0; 3. press Se, he display shows parameer S; 4. press UP or DOWN unil reaching he desired parameer: when scrolling, an icon is displayed ha represens he caegory he parameer belongs o (see he able below and he parameer able); 5. press Se o display he value of he parameer; 6. press UP/DOWN unil reaching he desired value; 7. press Se o emporarily save he new value and display he parameer code again; 8. Repea seps 4) o 7) o se oher parameers; 9. To permanenly save he new values of he parameers, press Prg/ Mue for 5 seconds. This exis he parameer seing procedure. Imporan: If he conroller is powered down before pressing Prg/mue, all he changes made o he parameers will be los; In he wo parameer seing procedures (F and C), he new values are only saved afer having pressed Prg/mue for 5 seconds. When seing he se poin, he new value is saved afer confirming wih Se. Noe: To move from he parameers in one caegory o anoher, when displaying he parameer code, press Prg o show he caegory and UP and DOWN o move from one caegory o anoher; if no buon is pressed for 10s, he display sars flashing, and afer 1 minue auomaically reurns o he sandard display; o increase he scrolling speed, press and hold he UP/DOWN buon for a leas 5 seconds; all he changes made o he parameers, emporarily sored in he RAM, can be cancelled, by no pressing any buon for 60 seconds, hus reurning o he sandard display. The values of he clock parameers (rc), however, are saved when enered. Parameer caegories Caegory Tex Icon Caegory Tex Icon Probes Pro Fan FAn Conrol CL Configuraion CnF Seing ype C parameers Type C parameers include he ype F parameers plus all he oher conrol parameers. Procedure: 1. press Prg/Mue one or more imes o reurn o he sandard display; 2. press Prg/Mue for more han 3 seconds (if an alarm is acive, he buzzer is mued): he display will show he code PS (Password) and Compressor CMP HACCP HcP Defros def Clock rc Alarms ALM The following examples apply o models fied wih RTC. Tab. 3.f 14

15 Example 1: seing he curren ime/dae 1. Access he ype C parameers as described in he corresponding paragraph; 2. Press UP/DOWN and selec he paren parameer c, or alernaively press he PRG buon o selec he rc parameer caegory and hen he parameer c; 3. Press Se: parameer y is displayed, followed by wo digis ha indicae he curren year; 4. Press Se and se he value of he curren year (e.g.: 12=2012), press Se again o confirm; 5. Press UP o selec he nex parameer - monh, and repea seps 3 and 4 for he following parameers: 6. M=monh, d=day of he monh, u=day of he week h=hour, m=minues; 7. To reurn o he lis of main parameers, press Prg/mue and hen access parameers on and of (see he following paragraph), or alernaively: 8. To save he seings, press Prg/mue for 5 seconds and exi he parameer seing procedure. Tesing he display and keypad on sar-up To access es mode: 1. Swich he conroller on; 2. Press Prg when he hree segmens on he display are all on (sage 3 in he able below). Sage Display pad Firs Display compleely Press Prg for 5 seconds o se he defaul values off for 5 seconds Second Display compleely No effec on for 2 s Third 3 segmens ( -- Pressing each buon lighs up a specific segmen. - ) on Noe: in his sage, he icon indicaes he Real Time Clock (RTC) is fied Fourh Normal operaion Normal operaion Tab. 3.g The sequence of buons o be pressed o es he display in sage 3 is described below. Example 2: seing he ligh/auxiliary oupu (aux) On/Off ime 1. Access he ype C parameers as described in he corresponding paragraph; 2. Press UP/DOWN and selec he paren parameer on = on ime; 3. Press Se: parameer d is displayed, followed by one or wo digis ha represen he on day, as follows: 0 = funcion disabled 1 o 7 = Monday o Sunday 8 = Monday o Friday 9 = Monday o Saurday 10 = Saurday & Sunday 11 = every day; 4. Press Se o confirm and go o he on ime parameers h/m=hours/ minues; 5. To reurn o he lis of main parameers, press Prg/mue and hen access parameer of = off ime; 6. To save he seings, press Prg/mue for 5 seconds and exi he parameer seing procedure. Noe: only one on or off even can be programmed. Seing he defaul parameers To se he parameers o he defaul values: Power down he conroller; Press Prg/mue; Power up he conroller holding he Prg/mue buon, unil he message Sd is shown on he display, afer 5 s. Defros To acivae a defros, he defros probe mus measure a emperaure less han he end defros emperaure (par. dp1). ACTIVATI: press for 5 seconds: Afer 5 seconds, he display shows he sar defros signal (dfb) for 3 s. The conroller eners defros mode, wih he corresponding icon shown on he display, ogeher wih he message def if se accordingly by parameer d6. The defros relay is also acivaed. Par. Descripion Def Min Max UoM d6 Terminal display during defros0 = Temperaure alernaing wih def1 = Display disabled2 = def Tab. 3.h Example: defros acivaion DEF Noe: his will cancel any changes made and resore he original values se by he manufacurer, i.e. he defaul values shown in he parameer able. DEACTIVATI: press for 5 seconds: DEF Afer 5 seconds, he display shows he end defros signal (dfe). The conroller exis defros mode, reurning o he sandard display. 15

16 Example: defros deacivaion On/Off To swich he conroller off from he keypad: press On-Off for 3 seconds. The display shows he ex Off flashing for 3 seconds, and hen on seady. Finally, he ex Off alernaes wih he sandard display. Any acive oupu relays are deacivaed. Auxiliary/ligh oupu acivaion Acivaion from he keypad: for auomaic acivaion from scheduler see he second example in paragraph 3.5. To acivae he auxiliary (H1 = 2) and/or ligh oupu (H1 = 3) from he keypad: press AUX and/or if presen; he message AUX flashes on he display for 1 s: press and hold unil acivaing he oupu and he corresponding icon on he display, which hen shows he sandard display. To swich he conroller on from he keypad: press On-Off for 1 s. The display shows he ex On for 1 s and hen reurns o he sandard display. Any oupu relays are acivaed again. Coninuous cycle For he explanaion of he coninuous cycle funcion, see chaper 6. To acivae he coninuous cycle, he value of parameer cc mus be >0. ACTIVATI: press he buon or combinaion of buons for 5 seconds + Auxiliary oupu acive Ligh oupu acive Press AUX o deacivae he AUX or ligh oupu. Probe calibraion Parameers /c1 o /c4 are used are used o calibrae he firs, second, hird and fourh emperaure probe respecively. Access he parameers and hen se he required values. When pressing Se, afer having enered he value, he display does no show he parameer, bu raher immediaely shows he new value of he probe reading being calibraed. This means he resul of he seing can be checked immediaely and any adjusmens made as a consequence. Finally, press Prg for 5 seconds o save he value of he parameer. The message cc flashes on he display for 3 seconds, and subsequenly, if he condiions are suiable, he conroller shows he sar coninuous cycle message ccb and he corresponding icon on he display. Example: coninuous cycle acivaion DEACTIVATI: press he buon or combinaion of buons for 3 s: + HACCP menu The conroller mus be fied wih he RTC (real ime clock). To ener he HACCP menu: press he combinaion/buon shown he able below for 1 s; press UP/DOWN o display he parameers in he HACCP caegory; press PRG for 5 seconds o reurn o he sandard display. + The message cc flashes on he display for 3 seconds, and subsequenly he conroller shows he end coninuous cycle message, cce. Display defros probe To display he value measured by he defros probe: press Se and UP ogeher for 3 s; he code of parameer d/1 is displayed flashing; coninue holding he buons unil he value measured by he defros probe is displayed; release he buons; he sandard display is shown again afer 10 s. Minimum and maximum emperaure monioring The conroller can record he minimum and maximum emperaure measured by he conrol probe over a period of up o 999 hours (more han 41 days). To enable monioring: ener programming mode as explained in he corresponding paragraph; se r5=1; selec r; 16

17 press: DEF This displays how long minimum and maximum emperaure monioring has been acive, (if recording has jus been enabled, r=0);; o resar emperaure recording, press for more han 5 s: The message res indicaes ha he log has been deleed. The conroller reses he oal hours and resars monioring; press Se o reurn o he lis of parameers; o display he maximum emperaure measured by he probe, read he value associaed wih parameer rh; o display he minimum emperaure measured by he probe, read he value associaed wih parameer rl. Noe: afer he maximum ime of 999 hours, minimum and maximum emperaure monioring coninues, while he ime inerval remains fixed a 999. Imporan: he values of parameers r, rl and rh are saved o he conroller s memory every hour. If he conroller is no conneced o an uninerrupible power supply, a emporary blackou may mean he values of r, rl and rh measured in he las hour will be los. When power reurns, he conroller auomaically resars monioring from he previously saved values. 17

18 4. COMMISSIING 4.1 Configuraion The configuraion parameers are se when commissioning he conroller, and involve: dae/ime seing, if he clock is fied (RTC real ime clock); analogue probe measuremen sabiliy; probe display sabiliy; sandard display shown on he conroller, and on he remoe display, and he decimal poin; serial address for he supervisor nework connecion; emperaure uni of measure ( C / F); lock keypad, disable buons and buzzer; display during he defros. Dae/ime seing See example 1 in par Analogue probe measuremen sabiliy Defines he coefficien used o sabilise he emperaure measuremen, filering he reading based on wo algorihms: limiaion of variaion: he maximum variaion he value is limied, so as o reduce impulsive disurbance; moving average: his limis he effec of any noise superimposed over he emperaure measuremen ha may negaively affec conrol performance. Low values assigned o his parameer allow a promp response of he sensor o he emperaure variaions; he reading however become more sensiive o disurbance. High values slow down he response, bu guaranee greaer immuniy o disurbance, ha is, a more sable and more precise reading. Par. Descripion Def Min Max UOM /2 Probe measuremen sabiliy Tab. 4.a Probe display sabiliy Imporan: his parameer only applies o he emperaure shown on he display, and no he reference conrol emperaure. Par. Descripion Def Min Max UOM /3 Probe display sabiliy 0 = Disabled 1 = Fas updae 15 = Slow updae Tab. 4.b This parameer is used o se he rae a which he emperaure display is updaed. The emperaure shown on he display ends o follow rapid deviaions away from he se poin very slowly, and vice-versa, moves very quickly in he even where he emperaure displayed is approaching he se poin. In he able he delay of display based o he seing. /3 Display delay /3 Display delay 0 Disabled 8 50 s 1 5 s 9 60 s 2 10 s s 3 15 s s 4 20 s s 5 25 s s 6 30 s s 7 40 s s Tab. 4.c If he conrol emperaure exceeds he high or low emperaure hresholds and a high/low emperaure alarm (AH/AL) is acivaed, or if he maximum number of filering seps is exceeded, he filering would immediaely be bypassed and he emperaure displayed would be he emperaure effecively measured, unil all he alarms are rese. Example: in he case of bole coolers, ypically used in supermarkes where he doors are opened frequenly, due o he greaer hermal ineria of he liquids compared o he air (and he fac ha he probe is posiioned in he air and no direcly on he producs), he conroller measures a emperaure ha is higher han effecive emperaure of he sof drinks, hus displaying an unrealisic emperaure. Seing parameer /3 o a value oher han 0, any abrup variaions in emperaure are filered on he display, showing a emperaure rend ha is closer o he acual rend of produc emperaure. Display on user erminal and remoe display The user erminal (conroller display) can eiher display he value of he virual conrol probe (see he chaper on conrol), he reading of probes 1-4 or he se poin. Similar displays can be seleced on he remoe display, excep for he se poin. Par. Descripion Def Min Max UOM /I Display on user erminal Virual probe 5 Probe 4 2 Probe 1 6 Reserved 3 Probe 2 7 Se poin 4 Probe 3 /E Reading on remoe display 0 Terminal no fied 4 Probe 3 1 Virual probe 5 Probe 4 2 Probe 1 6 Reserved 3 Probe Tab. 4.d Serial address (parameer H0) H0 assigns he conroller an address for he serial connecion o a supervisory and/or elemainenance sysem. Par. Descripion Def Min Max UOM H0 Serial address Tab. 4.e Temperaure uni of measure and decimal poin display The following seings are available: choose he emperaure uni of measure, beween degrees Celsius ( C) and Fahrenhei ( F); enable/disable he decimal poin on he display and he buzzer. Par. Descripion Def Min Max UOM /5 Temperaure uni of measure = C, 1 = F /6 Display decimal poin /1 = yes/no H4 Buzzer 0/1=enabled/disabled Tab. 4.f Lock keypad and disable buons Cerain funcions regarding he use of he keypad can be disabled, for example parameer and se poin seings if he conroller is accessible o he public. In addiion, an individual buon or group of buons can be disabled. Par. Descripion Def Min Max UOM H2 Disable keypad funcions H6 Terminal keypad lock configuraion 0 = all buons enabled Tab. 4.g Funcions ha can be disabled on he keypad Imporan: if seing H2 1, 3, he ype F parameers canno be se, bu raher only heir values can be displayed. Type C parameers, being password-proeced, can always be se on he keypad following he procedure described in chap. 3. If se poin and F parameer seing is disabled, he se poin and he ype F parameers canno be se, bu raher only heir values can be displayed. Noe: Y = can be acivaed / enabled; N = canno be acivaed / enabled 18

19 ir33+ par. H2 FUNCTI LIGHT Y Y Y Y Y Y Y AUX Y Y Y Y Y Y Y / Y Y Y Y N N Y HACCP Y Y Y Y Y Y Y PRG/MUTE (mue) Y Y Y Y Y Y Y UP+DOWN (coninuous cycle) Y Y Y Y N N N SET/DEF (defros) Y Y Y Y N N N SET (se poin) seing N Y N Y Y N N F parameer seing N Y N Y N N N Tab. 4.h Disable buons Using he individual bis, he funcions relaing o he buons on he keypad can be enabled or disabled, according o he relaionships shown in he able below: o calculae he value o be assigned o parameer H6, simply sum he values assigned o he funcions ha should be disabled. Noe: he funcions disabled using parameer H6 are added o hose disabled using parameer H2. Disable buons Bi Value par. H6 ir33+ buon ir33+ funcion Descripion 0 1 Display defros emp. procedure; access HACCP; defros Display defros emp. procedure 1 2 Acivae AUX oupu 1, coninuous cycle Defros 2 4 Up, On-Off Coninuous cycle 3 8 Mue alarms Mue alarms Tab. 4.i 4.2 Loading he ses of parameers Up o 6 ses of cusom parameers can be seleced on he conroller, afer having been loaded using he VPM programming ool (Visual Parameer Manager, see appendix 1) and he programming key. Procedure: power down he conroller; power up while holding Prg/mue; he display will show he firs se: bn0; press UP/DOWN o selec se bn1 o bn6. For example, selec bn2; press Se o confirm he seleced se: he conroller will load he se of parameers called bn2 and hen will reurn o he sandard display. Par. Descripion Def Min Max UOM Hdn Number of defaul parameer ses available Tab. 4.j Noe: bn0 is he defaul se of parameers on he conroller, i.e. he defaul configuraion. When one of ses bn1 o bn6 is loaded, bn0 is overwrien wih he new se and is consequenly erased. 4.3 Preparing for operaion Once having compleed he insallaion, configuraion and programming procedures, before saring he conroller, check ha: he wiring has been compleed correcly; he programming logic is suiable for conrolling he uni and he sysem being managed; if he conroller is fied wih RTC (clock), se he curren ime and dae, and he on and off imes for he ligh/auxiliary oupu; se he sandard display; se he probe ype parameer based on he probe available and he ype of conrol (NTC, NTC-HT, PTC); noe ha he conrollers ha use PTC probes may have differen par numbers from hose ha only use NTC probes; se he ype of defros: heaer or ho gas; se he emperaure uni of measure ( C or F); he proecion funcions (delay a sar-up, roaion, minimum on and off imes for he oupus) are acive. Noe: all he alarms wih manual rese can be rese by pressing he Prg and UP buons ogeher for more han 5 seconds. See he chaper on Alarms. 19

20 5. FUNCTIS 5.1 Probes (analogue inpus) The ir33+ plaform conrollers feaure a maximum of 4 analogue inpus, which are used for NTC, high emperaure NTC (NTC Enhanced Range) or PTC emperaure sensors (see he noe below). Probes S3 and S4 can also be configured as digial inpus. Probe S1 is he conrol probe and is funcion canno be changed; he funcions of probes S2, S3, S4 can be seleced using parameers /A2, /A3, /A4. The probes can be calibraed o adjus heir readings. In paricular, parameers /c1 o /c4 are used o increase or decrease he values read by he probes conneced o inpus S1, S2, S3 and S4 across he enire he range of measuremen. For he calibraion procedure, see paragraph 3.5. Par. Descripion Def Min Max UOM /P Type of probe = NTC Sandard Range -50T90 C 1 = NTC Enhanced Range -40T150 C /c1 Probe 1 calibraion /c2 Probe 2 calibraion /c3 Probe 3 calibraion /c4 Probe 4 calibraion Tab. 5.a Par. Descripion Def Min Max UOM /A2 Probe 2 configuraion (S2) (M models) /A2 Probe 2 configuraion (S2) Absen 1 Produc (display only) 2 Defros 3 Condenser 4 Fros /A3 Probe 3 configuraion (S3) Digial inpu 1 (DI1) 1 Produc (display only) 2 Defros 3 Condenser 4 Fros /A4 Probe 4 configuraion (S4/ DI2) 0 Digial inpu 2 (DI2) 1 Produc (display only) 2 Defros 3 Condenser 4 Fros Tab. 5.b T1 T2 A min, max A T2 min Fig. 5.a Temperaure read by he probe Value calibraed by T1 Calibraion value Range of measuremen max Assigning he funcions of probes S2, S3, S4 The conroller, inside he refrigeraed cabine or cold room, can use he following probes: defros, locaed on he evaporaor, preferably where ice remains he longes; condenser, used o proec he compressor agains high pressure when he condenser is off or he condenser fan is malfuncioning; fros proecion, o acivae he corresponding alarm. Noe: o configure probes 3 and 4 as digial inpu 1 and 2 respecively, se parameers /A3 e /A4 =0; if muliple probes have been configured wih he same operaing mode, he conroller will use he firs probe in increasing order wih ha configuraion. T1 5.2 Digial inpus Digial inpus DI1 and DI2 respecively can be enabled in he place of probes S3 and S4. Digial inpus 1, 2 mus firs be enabled (par. /A3 and / A4 = 0) and hen assigned o a specific funcion (par. A4 and A5). Finally, an exernal conac can be conneced o he mulifuncion inpu o acivae various ypes of funcions, such as alarms, curain/door swiches, sar defros, ec. See he able below. Imporan: o ensure uni safey in he even of serious alarms, he uni mus be fied wih all he elecromechanical safey devices needed o guaranee correc operaion.. Noe: (applies o all seings of par. A4 and A5): if 2 digial inpus are configured in he same way, for example o enable defros, he disable even is generaed when a leas one of he inpus is open, while he enable even is generaed when a boh inpus are closed. Digial inpu funcions Seing PARAMETERS A4, A5 Conac OPEN CLOSED 0 = no acive = immediae exernal alarm acive no acive 2 = delayed exernal alarm acive no acive 3 = selec probe (ir33m) see /I firs probe enabled (/A2, /A3, /A4, /A5) 3 = enable defros (all oher models) no enabled enabled 4 = sar defros no acive acive 5 = door swich wih compressor and evaporaor door open door closed fans off 6 = remoe / 7 = curain swich curain open curain closed 8 = low pressure swich low pressure normal saus saus 9 = door swich wih fans off door open door closed 10 = direc/reverse operaion direc mode reverse mode 11 = ligh sensor ligh off ligh on 12 = acivae aux oupu deacivaed acivaed 13 = door swich wih compressor and fans door open door closed off and ligh no managed 14 = door swich wih fans off and ligh no managed door open door closed Tab. 5.c 20

21 The following parameers are involved in he explanaion of he seings for A4 and A5. Par. Descripion Def Min Max UOM A4 Mulifuncion digial inpu 1 configuraion 0/ (DI1) (IR33M) See he previous able A5 Mulifuncion digial inpu 2 configuraion (DI2) See he previous able A6 Sop compressor on exernal alarm min 0 = compressor always off; 100 = compressor always on A7 Digial alarm inpu delay 0 = conrol oupus unchanged min Ado Ligh managemen wih door swich c7 Maximum pump down ime (PD) s 0 = Pump down disabled d5 Defros delay a sar-up (if d4=1) or from min DI d8 High emperaure alarm bypass ime afer hr/ defros (and door open) min d8d Alarm bypass ime afer door open min di Maximum ime beween consecuive defross - 0 = defros no performed hr/ min Tab. 5.d 1 = Immediae exernal alarm Applicaion: exernal alarm ha requires immediae acion (for example high pressure alarm or compressor hermal overload). When he alarm is acivaed: 1. he following acions occur: a signal is shown on he display ( IA ); he icon flashes; he buzzer is acivaed, if enabled; he alarm relay is acivaed, if seleced; 2. and he acuaors behave as follows: compressor: operaes depending on he values assigned o parameer A6 (sop compressor on exernal alarm). fans: coninue operaing according o he fan parameers ( F ). Noe when he compressor sops, he minimum compressor on ime ( c3 ) is ignored. 2 = Delayed exernal alarm The delayed exernal alarm is equivalen o he immediae exernal alarm, however wih he addiion of a delay A7 before he signal ( da ). Applicaion: his configuraion is especially useful for managing he low pressure alarm. In fac, when saring for he firs ime, he uni ofen deecs a low pressure alarm due o he environmenal condiions raher han a uni malfuncion. Seing a delay for he alarm (par. A7) will avoid false signals. In fac, by suiably calculaing he delay, if he low pressure is due o environmenal condiions (low emperaure), he alarm will be auomaically rese before he delay has elapsed. Noe if A7 =0 acivaion of he alarm does no cause he compressor o operae according o he values assigned o parameer A6 (sop compressor on exernal alarm); on he oher hand, he da signal is displayed, he icon flashes, he buzzer and he alarm relay (if seleced) are acivaed; he delayed exernal alarm is hus signal-only. 3 = Probe shown on he display (IR33M models) On hermomeer-only models, his seing selecion is used o exploi he digial inpu in order o show, on he display, he probe seleced by parameer /I or he firs enabled probe (see parameers /A2, /A3, /A4 ). In pracice, if he conac is open, he probe seleced by parameer /I is shown, whereas, if he conac is closed, he firs enabled probe is shown. Noe: if more han one digial inpu is configured as he probe selecion, he probe seleced by parameer /I is displayed when a leas one of he inpus is open. 3 = Enable defros (all oher models) Applicaion: any defross called when he conac is open remain pending unil he conac closes. The various possibiliies are shown below. A4 = 3 Conac Defros Open No enabled Closed Closed wihou reques from he conroller Closed wih in progress Enabled No performed When he digial inpu opens, he defros is immediaely sopped and he uni resars normal operaion (wihou performing he dripping or pos-dripping sages). The LED sars flashing o indicae ha he defros call is pending, awaiing he nex enabling signal (closing of he conac), when he defros will be performed compleely. Tab. 5.e Noe his funcion is useful o preven defross on unis accessible o he public during opening imes. 4 = Sar defros from exernal conac Applicaion: his funcion is useful for performing defross in real ime. To perform he defross, connec a cyclical, mechanical or elecronic imer o he seleced digial inpu: a series of unis can be conneced o he same imer, seing differen values for parameer d5 (defros delay from mulifuncion inpu) o avoid simulaneous defross. Imporan: for 12 Vac and 12/24 Vac versions. When connecing a series of unis o he same imer, he bes soluion is o insulae all he conacs galvanically, insering an inermediae relay for each conac. TIMER DEFROST DEFROST DEFROST d5(1)=0 dp(1) d5(2) d5(3) Fig. 5.b dp(2) dp(3) UNIT 1 UNIT 2 UNIT 3 dp Maximum defros duraion d5 Defros delay from digial inpu UNIT 1 3 Uni 1-3 Time 5 = Door swich wih compressor and evaporaor fan off Parameer d8 defines he high emperaure alarm bypass ime afer he defros ends (or he door is opened). Parameer d8d is he alarm bypass ime afer he door is opened. If d8d=0, he alarm delay afer door open coincides wih he value of parameer d8. Seing A4 =5 manages he cold room door swich. The behaviour of he door swich depends on he saus of he ligh when he door is opened: 1. ligh off; 2. ligh on. 21

22 Case 1: ligh off when opening he door If he door is opened wih he ligh : he compressor and he evaporaor fans are swiched off; he ligh is swiched on (only on models fied wih a leas 1 auxiliary relay programmed as a ligh oupu); he reading displayed and he icon flash; he emperaure alarms are disabled. If he door remains open for a ime longer han d8 (d8d), he conroller resumes normal operaion: he compressor and he evaporaor fan are swiched on, if needed; he ligh is swiched off; he reading on he display flashes; he buzzer and he alarm relay are acivaed; he emperaure alarms are enabled wih he delay Ad. To sop he reading from flashing, close he door. When he door closes, he conroller resumes normal operaion, swiching off he ligh and enabling he emperaure alarm afer he delay ime d8. The compressor is re-sared, afer any se proecion imes (see he C parameers). Noe: if he ligh was previously swiched on manually, when he door is closed for he second ime, i is auomaically swiched off; even if he evaporaor fan is managed by he fan conroller (see he F parameers), he fans are forced o sop when he door is open. This algorihm resolves any problems relaing o fauls or malfuncions of he door swich. Door-swich Case 2: ligh on when opening he door The icon is on. If he door is open wih he ligh on, i is assumed he user eners he cold room, urning on he ligh before enering, closing he door behind him, and hen exis he room, closing he door a second ime. When he door is opened he firs ime: he compressor and he evaporaor fans are swiched off; he ligh says on (only on models fied wih a leas 1 auxiliary relay programmed as a ligh oupu); he reading is displayed and he icon flashes; he emperaure alarms are disabled. When he door is closed he firs ime, he conroller mainains he previous siuaion: he compressor and he evaporaor fans say off; he ligh says on; he reading is displayed and he icon flashes; he emperaure alarms are disabled. Door opened he second ime: no change. When he door is closed he second ime, he conroller resumes normal operaion, swiching off he ligh and enabling he emperaure alarm afer he delay ime d8. When he compressor re-sars, any se proecion imes mus elapse firs (see he C parameers). If, afer opening, he door remains open for a ime longer han d8 or d8d, he conroller resumes normal operaion: compressor and evaporaor fan swiched on if needed; ligh off; he reading on he display flashes; he buzzer and he alarm relay are acivaed; he emperaure alarms are enabled wih he delay Ad ; when he door closes, he high emperaure alarm bypass ime afer door open d8 is no se. To sop he reading from flashing, close he door. If, afer being closed for he firs ime, he door remains closed for longer han ime d8 or d8d, he conroller resumes normal operaion: compressor and evaporaor fan swiched on if needed; ligh off; he emperaure alarms are enabled wih he delay d8 ; he high emperaure alarm bypass ime afer door open d8 is se. If, afer he door is closed for he firs ime, he ligh is swiched off manually, he conroller resumes normal operaion: compressor and evaporaor fan swiched on if needed; ligh off; he emperaure alarms are enabled wih he delay d8 ; he high emperaure alarm bypass ime afer door open d8 is se. Fig. 5.c Noe: if more han one digial inpu is configured as a door swich, he door is considered open when a leas one of he inpus is open. 6 = Remoe On/Off The digial inpu may be programmed also as remoe /. When he conrol is in : he emperaure is displayed alernaing wih he message ; he inernal imer for parameer di is updaed. If di expires when he uni is, a defros is performed when he uni is swiched on again; he auxiliary relay se as auxiliary and ligh oupu is acive, he oher auxiliary oupus are off; he buzzer and he alarm relay are deacivaed; he conroller does no perform he conrol funcions, defross, coninuous cycle, signal emperaure alarms and all oher funcions; he compressor proecion imes are observed; When he conroller is swiched back on, all he funcions are re-acivaed, wih he excepion of: defros on sar-up; compressor and fan delay a power on. Noe: he / from exernal digial inpu has prioriy over he keypad and he supervisor; 7 = Curain swich If he inpu is seleced as a curain swich, he conroller modifies he se poin when he conac closes, adding he value of parameer r4 ; he new value is hen used for all he funcions relaing o he se poin (e.g. relaive high and low emperaure alarms, conrol wih dead band, conrol wih wo compressor seps ec.). For example when r4 =3.0 (defaul value), he se poin is increased by 3 degrees from he value used when he curain is open. Par. Descripion Def Min Max UOM r4 Auomaic nigh-ime se poin variaion C/ F Tab. 5.f CMP/FAN S rd DIRECT DI OPEN Sv Fig. 5.d CMP/FAN S r4 rd DI CLOSED Sv 22

23 S Se poin rd Differenial CMP Compressor FAN Fan Sv Virual probe r4 Auomaic nigh-ime se poin variaion Noe: if one of he auxiliary oupus is used o manage he ligh, lowering he curain auomaically swiches he ligh off, while raising i swiches he ligh on. 8 = Low pressure swich inpu for pump down See par Seing A4 =8 manages he low pressure swich. The low pressure alarm LP is signalled when he low pressure swich is acivaed: during normal conrol (c7=0) wih he compressor on, or alernaively wih pump-down funcion configured (c7 >0), if he pump down valve is open and he compressor is on. The low pressure alarm signal is delayed by he ime se for parameer A7. The low pressure alarm LP sops he compressor. CMP Pressure swich HIGH Pump down valve LOW LP Alarm Fig. 5.e A7 10 = Direc/reverse operaion Imporan: when A4 = 10, he saus of digial inpu has prioriy over he seing of parameer r3 (direc/reverse operaing mode). When he conac is open, he conroller operaes in direc mode (cooling), when he conac is closed, in reverse mode (heaing). A swich can herefore be conneced o selec heaing or cooling operaion. CMP/FAN S r3 = 0, 1, 2 rd DIRECT DI OPEN Sv Fig. 5.f S Se poin Sv Virual probe rd Differenial CMP Compressor FAN Fan r3 = 0, 1, 2 CMP/FAN DI CLOSED rd S REVERSE 11 = Ligh sensor The digial inpu is used o read a ligh sensor (P/N PSOPZLHT00, acually an analogue inpu, from which a digial signal is aken using he parameer or hreshold of he ligh sensor). The ligh sensor can be locaed: in he door jamb (ref. A); inside he cold room or cabine (ref. B). Par. Descripion Def Min Max UOM AF Ligh sensor ime s 0 Sensor in he door jamb > 0 Sensor inside he cold room or cabine Tab. 5.g B A Sv CMP Compressor Pump down valve Pump down valve Pressure Swich Pressure LP alarm Low pressure alarm swich Time A7 Alarm signal delay Noe: his parameer, ogeher wih c7, c8, c9 and H1, allows managemen of he pump-down algorihm (see par 6.3). 9 = Door swich wih fan off only Same as for opion A4 =5, wih he difference being ha when opening he door only he evaporaor fan is swiched off. Ligh sensor signal Fig. 5.g A (AF=0) B (AF = 1) The sensor signals he opening and closing of he door The sensor signals he opening of he door and deecs ligh inside he cabine/cold room. The sensor also signals closing of he door Inside ligh: on Wih he door open If he sensor deecs ligh Inside ligh: off Wih he door Closing of he door is measured by closed, minimum off ime, as he inside ligh will illuminae ime of 5 s, o avoid rapid, successive impulses of he ligh relay he sensor. Afer he ime AF (>0) he inside ligh is swiched off for 5 seconds. If he ligh sensor signals darkness, he door mus be closed and he ligh will herefore remain off; if i signals ligh: he door is open and he ligh will be swiched on again. Tab. 5.h 23

24 12 = Auxiliary oupu Se H1 = 2 o acivae he auxiliary oupu. See he able a he sar of his paragraph for deails on he acivaion/ deacivaion logic. 13 = Door swich wih compressor and fan off, ligh no managed Operaion is similar o A4=5, wih he difference ha he ligh oupu is no modified. Noe: he ligh managemen algorihm depends on parameer Ado Ligh managemen wih door swich (masked parameer accessible from VPM). Ado Ligh when opening Algorihm Descripion he door 0 off normal open-close on exended open-close-open-close 1 off exended open-close-open-close on normal open-close Tab. 5.i If he digial inpu is seleced o no manage he ligh (A4, A5 =13 or 14), he algorihm is modified as follows: Ado Ligh when opening Algorihm Descripion he door 0 off normal open-close on exended open-close-open-close 1 off normal open-close on normal open-close Tab. 5.j See he able a he sar of his paragraph for deails on he acivaion/ deacivaion logic. 14 = Door swich wih fan off only, ligh no managed Operaion is similar o A4=9, wih he difference ha he ligh oupu is no modified. Noe: he ligh managemen algorihm depends on parameer Ado, as shown in he previous able. See he able a he sar of his paragraph for deails on he acivaion/ deacivaion logic. 5.3 Digial oupus The parameers in quesion concern he minimum on or off imes of he same oupu or differen oupus, so as o proec he loads and avoid swings in conrol. Imporan: for he imes se o become immediaely operaional, he conroller needs o be swiched off and on again. Oherwise, he imers will become operaional when he conroller is nex used, when he inernal imer is se. Relay oupu proecors (parameers c7,c8,c9) Par. Descripion Def Min Max UOM c0 Compressor, fan and AUX sar delay a power min on c1 Minimum ime beween successive compressor min sars c2 Minimum compressor off ime min c3 Minimum compressor on ime min Tab. 5.k c0: when he conroller is powered on, he compressor, evaporaor fans and auxiliary relay in neural zone conrol ( H1 =11) are sared afer a delay (in minues) equal o he value assigned o his parameer. The delay is used o proec he compressor agains repeaed sars in he even of frequen power failures; c1 defines he minimum ime beween wo consecuive sars of he compressor; c2 defines he minimum compressor off ime; c3 defines he minimum compressor on ime; Oher relay oupu proecors (parameer c11) Par. Descripion Def Min Max UOM c11 Second compressor sar delay s Tab. 5.l c11 defines he acivaion delay beween he firs and second compressor (or beween he firs and he second compressor sep). c1 STEP1 STEP2 POWER_ c0 Sep1 Compressor sep 1 Sep2 Compressor sep 2 ime c11 c3 Fig. 5.h Funcions assigned o AUX Oupu AUX can be assigned differen funcions, such as alarm signal, auxiliary oupu, ligh oupu, pump down valve, condenser fan, reverse oupu wih neural zone, second compressor, second compressor wih roaion. For deails, see he chaper on conrol. Par. Descripion Def Min Max UOM H1 AUX oupu configuraion = normally energised alarm 1 = normally de-energised alarm 2 = auxiliary 3 = ligh 4 = auxiliary evaporaor defros 5 = pump down valve 6 = condenser fan 7 = delayed compressor 8 = auxiliary wih deacivaion when 9 = ligh wih deacivaion when 10 = no funcion 11 = reverse wih neural zone 12 = second compressor sep 13 = second compressor sep wih roaion Tab. 5.m c2 24

25 6. CTROL 6.1 Swiching he conroller On/Off The conroller can be swiched / from a number of sources; keypad, supervisor and digial inpu. In his operaing mode, he display will be show he emperaure seleced for parameer /I, alernaing wih. The digial inpu can be used o swich he conroller on/off, seing parameer A4/A5 o 6. Swiching on/off from digial inpu has prioriy over he same funcion from he supervisor and he keypad. Source Prioriy Noe Digial inpu 1 Disable On/Off from keypad and supervisor pad 2 Supervisor 3 Tab. 6.a 6.2 Virual probe The conrol oupu is he compressor oupu, which in mos cases is also associaed wih he evaporaor fan oupu. The conrol probe is probe S1, while probes S2, S3, S4 can be assigned funcions such as produc probe (display only), defros probe, condenser probe or fros proecion probe. For verical display cases, he virual probe (Sv) should be defined as he conrol probe; his represens he half-way poin beween he display case oule and inake probes, and he reading is hus affeced by he environmenal condiions. During he day, he display case ligh is on and he curain is open o allow cusomers o ake ou he producs sore, a nigh he curain is closed and he ligh is off. Due o he lower hea load a nigh, he nigh-ime se poin is increased by he value of parameer r4. Par. Descripion Def Min Max UOM S Se poin Def. 1 Def. 2 r1 r2 C/ F 2-18 r4 Auomaic nigh-ime se poin C/ F variaion /4 Virual probe composiion 0 = conrol probe S1 100 = probe S Tab. 6.b Parameer /4 is used o deermine he virual probe (Sv) as he weighed average of conrol probe S1 and probe S2, according o he following formula: 6.3 Se poin The reference oupu is he compressor oupu (CMP). The conroller can operae in 3 differen modes, as seleced by parameer r3: direc wih defros conrol; direc; reverse. Par. Descripion Def Min Max UOM S Se poin Def. 1 Def. 2 r1 r2 C/ F 2-18 rd Differenial C/ F rn Neural zone C/ F rr Reverse differenial C/ F r1 Minimum se poin r2 C/ F r2 Maximum se poin 60 r1 200 C/ F r3 Operaing mode 0 = Direc wih defros conrol (cooling) 1 = Direc (cooling) 2 = Reverse (heaing) Tab. 6.c REVERSE CMP DIRECT CMP rd Sv rd S S Fig. 6.b S Se poin rd Differenial Sv Virual probe CMP Compressor If he second compressor oupu is acivaed (H1 = 12) on he AUX oupu, he compressor oupu is acivaed a S±rd/2 and he AUX oupu a S±rd, as illusraed in he following figure. Sv [( S1*(100 - /4) + S2*/4] Sv = 100 DAY: se poin = -13 C NIGHT: se poin = -10 C AUX REVERSE DIRECT AUX S1 S1 /4=50 CMP CMP Sv=(S1+S2)/2 rd/2 rd/2 S Sv Fig. 6.c S rd/2 rd/2 Sv S2 Fig. 6.a S2 S Se poin rd Differenial Sv Virual probe AUX Auxiliary oupu CMP Compressor S1 Sv S2 Oule probe Virual probe Inake probe The neural zone is acivaed on he conroller only if he reverse oupu is acivaed wih neural zone conrol, H1 = 11. The figure below shows direc operaion (r3 =0, 1), wih 1 compressor oupu (CMP). 25

26 r3=0,1 AUX rr rn/2 rn/2 S CMP Fig. 6.d Reverse operaion (r3 =2), wih 1 compressor oupu (CMP). r3=2 AUX rr rn/2 Fig. 6.e S CMP rd rn/2 S Se poin rd Differenial rn Neural zone rr Reverse differenial 6.4 Pump down The pump down funcion has he purpose compleely empying he evaporaor of refrigeran on reaching he se poin. The conroller firs deacivaes he pump down valve and hen, afer a cerain ime, he compressor. The applicaion diagram shows he pump down valve and he low pressure swich. When he conroller resars he compressor, if proecion imes c1 and c2 have elapsed, he pump down valve is opened, and afer he ime c8 he compressor is acivaed. The parameers involved are lised below. Par. Descripion Def Min Max UOM c7 Maximum pump down ime (PD) s 0 = pump down disabled c8 Compress. sar delay afer opening PD valve s c9 Auosar in pump down = Disabled 1 = Pump down whenever closing pump down valve & following low pressure swich acivaion wih no cooling demand c10 Pump down by ime or pressure 0/1 = pressure/ime Tab. 6.d Noe: c8 is a masked parameer, and can be made visible using he VPM ool. C F S L ir33+ rd Sv CMP P CMP Compressor P Low pressure swich C Condenser F Filer-drier L Liquid receiver E Evaporaor V2 Thermosaic expansion valve S Liquid gauge PDV Pump down valve Pump down can be seleced: by pressure (pressure swich required): when he pump down valve closes, he compressor coninues operaing unil he pressure swich measures he defined low pressure value. The compressor is hen sopped. If he pressure swich does no measure he defined value before c7 elapses, he Pd alarm - pump down ended by imeou - is acivaed; by ime (pressure swich opional): when he valve closes, he compressor coninues operaing for he ime c7 or unil reaching he low pressure value. The Pd alarm - pump down ended by imeou - is no acivaed. c10 = 0: Pump down by pressure Pressure swich acivaed before c7 Pressure swich acivaed afer c7 CMP, FAN VPD PRESSURE SWITCH ALARM Pd Sv S c7 Fig. 6.g CMP, FAN Compressor, fan c7 Maximum pump down ime VPD Pump down valve Pd Pump down alarm Pressure swich Pressure swich Time Sv Virual probe 6.5 Auosar in pump down As seen in he previous paragraph, on reaching he se poin, he conroller closes he pump down valve and hen he pressure swich signals low pressure. If, due o valve ighness problems, he pressure swich is acivaed again, he compressor can be resared by he Auosar funcion. Par. Descripion Def Min Max UOM c9 Auosar in pump down 0 = Disabled 1 = Pump down whenever closing pump down valve & following low pressure swich acivaion wih no cooling demand Tab. 6.e c7 T V2 PDV M E Fig. 6.f 26

27 CMP, FAN VPD PRESSURE SWITCH AS 6.7 Ani-swea heaer When he uni is powered on, he compressor is acivaed in cooling mode and he AUX and ligh oupus are disabled unil he conrol probe measures a value less han S + Hdh. The aim is o preven he ligh or he heaer conneced o he AUX oupu from adding hea and conrasing he work done by he compressor. When he funcion is acive, he display shows he corresponding icon, flashing. Par. Descripion Def Min Max UOM Hdh Ani-swea heaer offse 0 = ani-swea heaer funcion disabled ( C) 32 = ani-swea heaer funcion disabled ( F) C/ F Tab. 6.g The following example refers o he configuraion where Hdh = 2 and S = 0, wih acivaion of he auxiliary oupu (H1 = 2) Sv S Fig. 6.h c7 c7 CMP, FAN AUX, LIGHT CMP, FAN Compressor, fan S Se poin VPD Pump down valve c7 Maximum pump down ime Pressure swich Pressure swich Time Sv Conrol probe AS Auosar in pump down Noe: in he compressor auosar funcion, he proecion imes c1 and c2 are applied, bu no c3; The message AS is rese auomaically when he nex pump down cycle erminaes correcly. Imporan: in he even of Pd alarms, he auosar funcion is deacivaed. 6.6 Coninuous cycle For informaion on acivaing he coninuous cycle from he keypad, see chaper 3. The value of parameer cc mus be >0. During operaion in coninuous cycle, he compressor coninues o operae, independenly of he conroller, for he ime cc, so as o lower he emperaure even below he se poin. The coninuous cycle is sopped afer he ime cc or when reaching he minimum specified emperaure, corresponding o he minimum emperaure alarm hreshold ( AL ). If, afer he end of he coninuous cycle, he emperaure falls by ineria below he minimum emperaure hreshold, he low emperaure alarm signal can be ignored by suiably seing parameer c6: alarm bypass afer coninuous cycle. Par. Descripion Def Min Max UOM cc Coninuous cycle duraion hour c6 Low emperaure alarm bypass ime afer coninuous cycle hr/ min Tab. 6.f Sv S+ Hdh Fig. 6.i CMP, FAN Compressor, fan LIGHT Ligh AUX Auxiliary oupu Sv Virual probe S Se poin Hdh Offse Time Noe: when alarms HI, IA, da, CH, EE, EF, re are acive of he conroller is, he ani-swea heaer funcion is sill enabled; a he end of he ani-swea heaer funcion, he oupus configured as ligh or auxiliary can be conrolled by he user from he keypad, supervisor or digial inpus. if AUX is configured as a ligh or auxiliary oupu a power on, he oupu reains he same saus as when previously powered down. If he ani-swea heaer funcion is acivaed, his is no longer rue: he oupu a power on remains while he funcion is acive. When he conrol emperaure (virual probe) reaches he value of S+Hdh, he funcion ends, acivaing he ligh oupu and auxiliary oupu irrespecive of heir saus when previously powered down. 27

28 6.8 Ligh and Aux oupus If AUX is configured as a ligh or auxiliary oupu a power on, he oupu reains he same saus as when previously powered down. The ligh or AUX oupu can be acivaed by he scheduler: his is se using parameer H8. For he on/off day and ime seings, see chaper 3. Par. Descripion Def Min Max UOM H8 Oupu swiched wih scheduler = Ligh; 1= AUX H9 Se poin variaion wih scheduler /1 = no/yes S Se poin Def. 1 Def. 2 r1 r2 C/ F 2-18 r4 Auomaic nigh-ime se poin C/ F variaion on Ligh/aux on ime of Ligh/aux off ime Tab. 6.h CMP, FAN SET S + r4 S+rd H9=1 Sv Sd mus be insalled, or by ime. In he firs case, he defros ends when he defros probe Sd exceeds he end defros value d1 or he ime dp1 has elapsed, in he second case when he defros procedure exceeds he maximum ime dp1. A he end of he defros, he dripping sage may begin (if dd>0), during which he compressor and he fans are off, followed by he pos-dripping sage (if Fd>0), during which conrol resumes wih he fans off. The ype of display on user erminal and he remoe display during he defros can be seleced by seing parameer d6. Par. Descripion Def Min Max UOM d0 Type of defros = Heaer by emperaure 1 = Ho gas by emperaure 2 = Heaer by ime (Ed1, Ed2 no shown) 3 = Ho gas by ime (Ed1, Ed2 no shown) 4 = Heaer by ime wih emperaure conrol (Ed1, Ed2 no shown) d1 End defros emperaure probe C/ F d2 End defros emperaure probe 3 (aux evaporaor) C/ F dp1 Maximum defros duraion min/s dp2 Maximum aux evaporaor defros duraion min/s d6 Terminal display during defros 0 = Temperaure alernaing wih def 1 = Display disabled 2 = def Tab. 6.j Noe: d3 is as masked parameer, and can be made visible using he VPM ool. on of d1 Sd Fig. 6.j CMP, FAN Compressor, fan r4 Auomaic nigh-ime se poin variaion S Se poin Sv Virual probe on Ligh/aux on ime of Ligh/aux off ime Time 6.9 Defros Inroducion Parameers d1 o d8 can be used o se up o 8 defros evens, managed by he conroller s clock (RTC). Press Se o se he sub-parameers, as shown in he able: Par. Descripion Def Min Max UOM d1 8 Defros 1 o 8 (press Se) d Defros 1 o 8 day day h Defros 1 o 8 hour hour n Defros 1 o 8 minue minue Tab. 6.i Remember ha sub-parameer d_ of d1(d2) defines he defros day as follows: d_ = Defros day 0 = even disabled 9 = Monday o Saurday 1 7 = Monday o Sunday 10 = Saurday & Sunday 8 = Monday o Friday 11 = every day DEF DEF DEF dp1 Fig. 6.k Time Sd Defros probe d1 End defros emperaure d0 Type of defros probe 2 dp1 Maximum defros duraion DEF Defros d0 = 0, 1 d0 = 2, 3 d0 = 4 Heaer defros by ime wih emperaure conrol (d0=4) is used o acivae he defros oupu only if he evaporaor emperaure (Sd) is less han value of he parameer d1, and ends afer he ime defined by dp1. This funcion is useful for energy saving. ir33+ can manage he following ypes of defros, based on he seing of parameer d0: 0. heaer (locaed near he evaporaor) by emperaure; 1. ho gas by emperaure; 2. heaer by ime; 3. ho gas by ime; 4. heaer by ime wih emperaure conrol. The defros can end by emperaure, in which case he defros probe 28

29 1. Heaer defros (d0 = 0, 2, 4): duy cycle The duy cycle refers o he defaul values of parameers F2 and F3. C F S V2 T CMP V_Pd FAN RES L REFRIG V_Pd M PUMP DOWN ir33+ S2 E Fig. 6.l DEF DRIP (dd) POST DRIP (Fd) c8 REFRIG CMP Fig. 6.m CMP Compressor Refrig Cooling V_Pd Pump down valve Pump down Pump down sage FAN Evaporaor fan Def Defros RES Heaer Drip Dripping E Evaporaor Pos drip Pos-dripping C Condenser S2 Defros probe V2 Thermosaic expansion valve L Liquid receiver F Filer-drier S Liquid gauge Time Noe: in pump down mode, he behaviour of he fan is deermined by F2; in defros, he behaviour of he fan is deermined by F3. 2. Ho gas defros (d0 = 1, 3): duy cycle The duy cycle refers o he defaul values of parameers F2 and F3. C V_def Noe: he defros oupu (DEF) is used o conrol he ho gas valve V_def. CMP V_Pd FAN V_def (HOT GAS) REFRIG c8 PUMP DOWN DEF DRIP POST DRIP REFRIG Fig. 6.o CMP Compressor Refrig Cooling V_Pd Pump down valve Pump down Pump down sage FAN Evaporaor fan Def Defros V_def Ho gas valve Drip Dripping E Evaporaor Pos drip Pos-dripping C Condenser S2 Defros probe V2 Thermosaic expansion valve L Liquid receiver F Filer-drier S Liquid gauge Time The defros sars: by seing he even and he sar mode, wih a maximum of 8 defross each day (parameers d1 o d8). The real ime clock (RTC) mus be available; from he supervisor, which sends he defros call o each conroller via he serial line; from he keypad. The defros ends: when he defros probe measures a emperaure greaer han he end defros emperaure d1; when no defros probe is used, he defros ends afer a maximum ime, se by parameer dp1. Maximum ime beween consecuive defross Par. Descripion Def Min Max UOM di Maximum ime beween consecuive defross hr/ 0 = defros no performed min Tab. 6.k Parameer di is a safey parameer used o perform cyclical defross every di hours, even wihou he Real Time Clock (RTC). I is also useful if he RS485 serial nework is disconneced. A he sar of each defros, irrespecive of he duraion, an inerval sars being couned. If his inerval exceeds di wihou a defros being performed, one is sared auomaically. The coun is always acive even if he conroller is. c8 L ir33+ M CMP F S V2 T V_Pd M E S2 Fig. 6.n 29

30 Example: if here is an RTC faul, he defros programmed by d3 is no performed, and afer he safey ime di a new defros sars. DEF d1 d2 d3 Fig. 6.p di Maximum ime beween consecuive defross DEF Defros d1 d3 Programmed defross Time di To overcome his, parameer d5 can be used, which adds a delay before he defros; he delay mus obviously mus be differen for each uni. d5 represens he ime ha mus elapse beween he sar-up of he conroller and he sar of he defros on sar-up; dd is used o force he sop of he compressor and of he evaporaor fan afer a defros so as o assis he dripping of he evaporaor same. d8 indicaes he high emperaure alarm signal bypass ime afer he end of a defros or when opening he door, if he digial inpu is conneced o he door swich; d9 overrides he compressor proecion imes c1, c2, c3 a he sar of he defros; d/1 and d/2 are used respecively o display he values read by defros probe 1 and 2; dc is used o change he uni of measure (hours or minues) used o coun he imes for parameers di (defros inerval, hours or minues,), dp1 and dp2 (defros duraion). Noe: if di expires when he conroller is, a defros will be performed when nex swiched on; o ensure regular defross, he inerval beween defross mus be greaer han he maximum defros duraion, plus he dripping ime and pos-dripping ime; if di =0 and no imed defross have been se, defross can only be performed a power on, from digial inpu, from he supervisor and from he keypad. Oher defros parameers Par. Descripion Def Min Max UOM d3 Defros acivaion delay min d4 Defros a sar-up /1=disabled/enabled d5 Defros delay a sar-up (if d4=1) or from di min dd Dripping ime afer defros (fans off ) min d8 High emperaure alarm bypass ime afer min defros (and door open) d9 Defros prioriy over compressor proecors 0/ = yes/no d/1 Display defros probe C/ F d/2 Display defros probe C/ F dc Time base for defros 0 = di in hours, dp1 and dp2 in minues 1 = di in minues, dp1 and dp2 in seconds Tab. 6.l d3 deermines he ime ha mus elapse, when he defros is acivaed, beween he sopping of he compressor (heaer defros) or he saring of he compressor (ho gas defros), and he acivaion of he defros relays on he main and auxiliary evaporaors; d4 deermines wheher o acivae a defros when swiching conroller on. The defros call a sar-up has prioriy over acivaion of he compressor and he coninuous cycle. Defrosing when swiching conroller on may be useful in special siuaions. Example: here are frequen power failures in he sysem. In he even of a power failure, he insrumen reses he inernal clock ha calculaes he inerval beween wo defross, saring from zero again. If he frequency of he power failure were, in an exreme case, greaer han he defros frequency (e.g. a power failure every 8 hours, agains a defros every 10 hours) he conroller would never perform a defros. In a siuaion of his ype, i is preferable o enable defros on sar-up, above all if he defros is conrolled by emperaure (probe on he evaporaor), herefore avoiding unnecessary defross or a leas reducing he running imes. For sysems wih a large number of unis, if selecing defross a sar-up, afer a power failure, all he unis will sar a defros. This may cause volage overloads Evaporaor fans The evaporaor fans can be managed according o he emperaure measured by he defros and conrol probes. The deacivaion hreshold is equal o he value of parameer F1, and he hyseresis is equal o he value of A0. Noe: during he dripping ime and pos-dripping ime, if se, he evaporaor fans are always off Below are he parameers involved in managing he evaporaor fans, and an example of he rend based on he difference beween he evaporaor emperaure and he value of he virual probe (F0=1). If F0=2, acivaion depends solely on he evaporaor probe emperaure. Par. Descripion Def Min Max UOM F0 Evaporaor fan managemen = always on 1 = acivaion based on Sd-Sv (difference beween virual probe and evaporaor emperaure) 2 = acivaion based on Sd (evaporaor emperaure) F1 Fan acivaion emperaure (only if F0 = C/ F or 2) A0 Alarm and fan differenial C/ F Tab. 6.m F0=1 F0=2 F1 F1-A0 FAN F1 F1-A0 FAN Sd - Sv Sd Fig. 6.q Sd Defros probe A0 Differenial FAN Evaporaor fans Time F1 Fan acivaion emperaure Sv Virual probe 30

31 The fan can be swiched off in he following siuaions: when he compressor is off (parameer F2); during he defros (parameer F3). During he dripping period (parameer dd > 0) and he pos-dripping period (parameer Fd > 0) he evaporaor fans are always off. This is useful o allow he evaporaor o reurn o emperaure afer defrosing, hus avoiding blowing warm ho and mois air ino he refrigeraor. The evaporaor fans can be forced on during normal conrol (parameer F2) and during defros (parameer F3) Duy seing (par. c4) If alarm re (virual conrol probe faul) is acivaed, his parameer is used o ensure operaion of he compressor unil he faul is resolved. As he compressor is no longer able o operae based according o he emperaure (due o he probe faul), i is made o run cyclically wih a running ime equal o he value assigned o parameer c4 and a fixed ime of 15 minues. Par. Descripion Def Min Max UOM c4 Compressor running ime wih duy seing min Par. Descripion Def Min Max UOM dd Dripping ime afer defros (fans off ) min F2 Evaporaor fans wih compressor off = See F0 1 = Always off F3 Evaporaor fans during defros /1=on/off Fd Pos-dripping ime (fans off ) min Tab. 6.n CMP c Condenser fans The condenser fans are acivaed based on parameers F4 and F5. Afer he compressor is firs sared, he condenser fans are acivaed a F4+0.2 degrees o offse any rapid emperaure increases ha he probe canno keep up wih. Subsequenly, he fans are swiched on and off a F4+F5 and F4. Par. Descripion Def Min Max UOM F4 Condenser fan deacivaion emperaure C/ F F5 Condenser fan acivaion differenial C/ F Tab. 6.o F4 + F5 F F4 FAN Firs swich-on Sc Fig. 6.s 6.13 Running ime defros (par. d10, d11) Running ime is a special funcion ha deermines when he refrigeraion uni needs defrosing. In paricular, i is assumed ha if he evaporaor emperaure measured by probe Sd remains coninuously below a cerain se hreshold (d11) for a cerain ime (d10), he evaporaor may be frozen and a defros is acivaed. The ime is rese if he emperaure reurns above he hreshold. Par. Descripion Def Min Max UOM d10 Defros ime in Running ime mode hour 0 = funcion disabled d11 Running ime defros emperaure hreshold C/ F Tab. 6.p d1 Sd d11 Fig. 6.r Sc Condenser probe Sv Virual probe FAN Condenser fans Time F4 Deacivaion emperaure F5 Differenial DEF d10 Noe: if no condenser probe is seleced, he condenser fan oupu is deacivaed. Fig. 6. Sd Defros probe ime DEF Defros 31

32 Defaul seings able Par number Defaul seings IREVM0LN0U - IREVM0EN0U - IREVS0LN0U Def. 1 IREVS0EA0U Def. 1 IREVC0LN0U Def. 2 IREVC0LC0U Def. 2 IREVC0HN0U Def. 2 IREVC0HC0U Def. 2 IREVF0EN0U Def. 2 : 7. PARAMETER TABLE Parameer ype: Variable ype: Noed: C = Configuraion, A = analogue, MSYFCH = parameer visible on models IREVM%, IREVS%, IREVY%, IREVF%, IREVC% and PBEVH%; F = frequen I = ineger, The grey rows in he able denoe masked parameers D = digial User Par. Descripion Models Def Min Max UOM Type CAREL SVP ModBus R/W Pro C /2 Probe measuremen sabiliy MSYFCH I R/W C /3 Probe display sabiliy MSYFCH I R/W Value Display delay (s) Value Display delay (s) 0 disabled C /4 Virual probe composiion MSYFCH I R/W 0 = Conrol probe S1 100 = Probe S2 C /5 Temperaure uni of measure: 0 = C; 1 = F MSYFCH D R/W C /6 Display decimal poin: 0/1=no/yes MSYFCH D R/W C /I Display on user erminal MSYFCH I R/W 1 Virual probe 5 Probe 4 2 Probe 1 6 Reserved 3 Probe 2 7 Se poin 4 Probe 3 C /E Reading on remoe display 0 No fied 4 Probe 3 1 Virual probe 5 Probe 4 2 Probe 1 6 Reserved 4 Probe 3 C /P Type of probe 0 = NTC Sandard Range -50T90 C 1 = NTC Enhanced Range -40T150 C C /A2 Probe 2 configuraion (S2) 0 Absen 3 Condenser 1 Produc (display only) 4 Fros 2 Defros C /A3 Probe 3 configuraion (S3/ DI1) 0 Digial inpu 1 3 Condenser 1 Produc (display only) 4 Fros 2 Defros C /A4 Probe 4 configuraion (S4/ DI2) 0 Digial inpu 2 3 Condenser 1 Produc (display only) 4 Fros 2 Defros MSYFCH I R/W MSYFCH I R/W YFCH I R/W MS l R/W MSYFCH I R/W MSYFCH I R/W C /c1 Probe 1 calibraion MSYFCH A R/W C /c2 Probe 2 calibraion MSYFCH A R/W C /c3 Probe 3 calibraion MSYFCH A R/W C /c4 Probe 4 calibraion MSYFCH A R/W 32

33 User Par. Descripion Models Def Min Max UOM Type CAREL SVP ModBus R/W Cl F S Se poin MSYFCH Def. 1 Def. 2 r1 r2 C/ F A R/W 2-18 F rd Differenial SYFCH C/ F A R/W C rn Neural zone SYFCH C/ F A R/W C rr Reverse differenial SYFCH C/ F A R/W C r1 Minimum se poin MSYFCH r2 C/ F A R/W C r2 Maximum se poin MSYFCH 60 r1 200 C/ F A R/W C r3 Operaing mode 0 = Direc wih defros conrol (cooling) 1 = Direc (cooling) 2 = Reverse (heaing) SYFCH I R/W C r4 Auomaic nigh-ime se poin variaion MSYFCH C/ F A R/W C r5 Enable emperaure monioring: 0/1=no/yes MSYFCH D R/W F r Duraion of curren max and min emperaure monioring MSYFCH hour I R session F rh Maximum emperaure read MSYFCH C/ F A R F rl Minimum emperaure read MSYFCH C/ F A R User Par. Descripion Models Def Min Max UOM Type CAREL SVP ModBus R/W CMP C c0 Compressor, fan and AUX sar delay a power on SYFCH min I R/W C c1 Minimum ime beween successive compressor sars SYFCH min I R/W C c2 Minimum compressor off ime SYFCH min I R/W C c3 Minimum compressor on ime SYFCH min I R/W C c4 Compressor running ime wih duy seing SYFCH min I R/W C cc Coninuous cycle duraion SYFCH hour I R/W C c6 Low emperaure alarm bypass ime afer coninuous cycle SYFCH hr/min I R/W C c7 Maximum pump down ime (PD) SYFCH s I R/W 0 = Pump down disabled C c8 Compressor sar delay afer opening PD valve SYFCH s I R/W C c9 Auosar in pump down SYFCH D R/W 0 = Disabled 1 = Pump down whenever closing pump down valve & following low pressure swich acivaion wih no cooling demand C c10 Pump down by ime or pressure SYFCH D R/W 0/1= pressure/ ime C c11 Second compressor sar delay SYFCH s I R/W User Par. Descripion Models Def Min Max UOM Type CAREL SVP ModBus R/W def C d0 Type of defros SYFCH I R/W 0 = heaer by emperaure 1 = ho gas by emperaure 2 = heaer by ime (Ed1, Ed2 no shown) 3 = ho gas by ime (Ed1, Ed2 no shown) 4 = heaer by ime wih emperaure conrol (Ed1, Ed2 no shown) F di Maximum ime beween consecuive defross SYFCH hr/ I R/W 0 = defros no performed min F d1 End defros emperaure probe 2 SYFCH C/ F A R/W F d2 End defros emperaure probe 3 (aux evaporaor) SYFCH C/ F A R/W F dp1 Maximum defros duraion SYFCH min/s I R/W F dp2 Maximum aux evaporaor defros duraion SYFCH min/s I R/W C d3 Defros acivaion delay SYFCH min I R/W C d4 Defros a sar-up: 0/1=disabled/enabled SYFCH flag D R/W C d5 Defros delay a sar-up (if d4=1) or from di SYFCH min I R/W C d6 Terminal display during defros SYFCH I R/W 0 = Temperaure alernaing wih def 1 = Display disabled 2 = def F dd Dripping ime afer defros (fans off ) SYFCH min I R/W F d8 High emperaure alarm bypass ime afer defros (and door SYFCH hr/ I R/W open) min C d8d Alarm bypass ime afer door open SYFCH min I R/W C d9 Defros prioriy over compressor proecors SYFCH D R/W 0/1 = yes/no F d/1 Display defros probe 1 MSYFCH C/ F A 1 1 R F d/2 Display defros probe 2 MSYFCH C/ F A 2 2 R C dc Time base for defros SYFCH D R/W 0 = di in hours, dp 1 and dp2 in minues 1 = di in minues, dp1 and dp2 in seconds C dc1 Time base for c6 and d8: 0/1 = hours/minues SYFCH D R/W C d10 Defros ime in Running ime mode0 = funcion disabled SYFCH hour I R/W C d11 Running ime defros emperaure hreshold SYFCH C/ F A R/W 33

34 User Par. Descripion Models Def Min Max UOM Type CAREL ModBus R/W SVP C d12 Advanced defross SYFCH I R/W d12 Skip defros Auomaic variaion of di 0 Disabled Disabled 1 Disabled Enabled 2 Enabled Disabled 3 Enabled Enabled C dn Nominal defros duraion SYFCH I R/W C dh Proporional facor for variaion of di SYFCH I R/W ALM C A0 Alarm and fan differenial MSYFCH C/ F A R/W C A1 Alarm hresholds (AL, AH) relaive o se poin or absolue 0: AL and AH are relaive hresholds o he se poin 1: AL and AH are absolue hresholds MSYFCH D R/W F AL Low emperaure alarm hreshold MSYF 0.0 A1=1-50 (alarm LO disabled) A1=0 0 (alarm LO disabled) 200 C/ F F R/W F AH High emperaure alarm hreshold MSYF 0.0 A1=1-50 A1=1 200 C/ F F R/W A1=0 0 (alarm HI disabled) (alarm HI disabled) A1=0 200 F Ad High and low emperaure alarm delay MSYFCH min I R/W C A4 Digial inpu configuraion 1 (DI1) SYFCH I R/W 0 = no acive 1 = immediae exernal alarm 2 = delayed exernal alarm 3 = selec probes (ir33m) / enable defros 4 = sar defros 5 = door swich wih compressor and evaporaor fans off 6 = remoe / 7 = curain swich 8 = low pressure swich 9 = door swich wih fans off 10 = direc/reverse operaion 11 = ligh sensor 12 = acivae aux oupu 13 = door swich wih compressor and fans off and ligh no managed 14 = door swich wih fans off and ligh no managed C A5 Digial inpu configuraion 2 (DI2) MSYFCH I R/W See A4 C A6 Sop compressor on exernal alarm SYFCH min I R/W 0 = compressor always off; 100 = compressor always on C A7 Digial alarm inpu delay SYFCH min I R/W 0 = conrol oupus unchanged C A8 Enable alarms Ed1 and Ed2 (end defros by imeou) SYFCH D R/W 0 = alarms disabled C Ado Ligh managemen wih door swich MSYFCH D R/W Ado Ligh when ope- Algorihm Descripion ning he door 0 off on 1 off on Exended normal normal exended Open-close Openclose-open-close C Ac High condenser emperaure alarm hreshold SYFCH C/ F A R/W C AE High condenser emperaure alarm differenial SYFCH C/ F A R/W C Acd High condenser emperaure alarm delay SYFCH min I R/W 0 = Immediae alarm C AF Ligh sensor ime SYFCH s I R/W 0 = Sensor in he door jamb > 0 = Sensor inside he cold room or cabine C ALF Fros proecion alarm hreshold MSYFCH C/ F A R/W C AdF Fros proecion alarm delay MSYFCH min I R/W 34

35 User Par. Descripion Models Def Min Max UOM Type CAREL SVP ModBus R/W FAn C F0 Evaporaor fan managemen 0 = always on 1 = acivaion based on Sd-Sv (difference beween virual probe and evaporaor emperaure) 2 = acivaion based on Sd (evaporaor emperaure) FCH I R/W F F1 Fan acivaion emperaure (only if F0 = 1 or 2) FCH C/ F A R/W C F2 Evaporaor fans wih compressor off FCH D R/W 0 = See F0, 1 = Always off C F3 Evaporaor fans during defros: 0/1=on/off FCH D R/W F Fd Pos-dripping ime (fans off ) FCH min I R/W C F4 Condenser fan deacivaion emperaure MSYFCH C/ F A R/W C F5 Condenser fan acivaion differenial MSYFCH C/ F A R/W User Par. Descripion Models Def Min Max UOM Type CAREL SVP ModBus R/W CnF C H0 Serial address MSYFCH I R/W C H1 AUX oupu configuraion CH I R/W 0 = normally energised alarm 1 = normally de-energised alarm 2 = auxiliary 3 = ligh 4 = auxiliary evaporaor defros 5 = pump down valve 6 = condenser fan 7 = delayed compressor 8 = auxiliary wih deacivaion when 9 = ligh wih deacivaion when 10 = no funcion 11 = reverse wih neural zone 12 = second compressor sep 13 = second compressor sep wih roaion C H2 Disable keypad funcions MSYFCH I R/W C H4 Buzzer: 0/1=enabled/disabled MSYFCH D R/W C H6 Terminal keypad lock configuraion MSYFCH I R/W 0 = all buons enabled C H7 pad: 0 = sandard; 1 = modified MSYFCH D R/W C H8 Oupu swiched wih scheduler 0 = Ligh; 1= AUX MSYFCH D R/W C H9 Se poin variaion wih scheduler 0/1 = no/yes MSYFCH D R/W C Hdn Number of defaul parameer ses available MSYFCH I R/W C Hdh Ani-swea heaer offse 0 = ani-swea heaer funcion disabled ( C) 32 = ani-swea heaer funcion disabled ( F) MSYFCH C/ F A R/W C HrL Remoe ligh relay saus on Maser: 0 = disabled MSYFCH D R/W C HrA Remoe AUX relay saus on Maser: 0 = disabled MSYFCH D R/W C HSA Remoe conroller alarms on Maser: 0 = disabled MSYFCH D R/W C In Type of uni 0 = Normal 1 = Maser 2 6 = Slave 1 o 5 MSYFCH I R/W User Par. Descripion Models Def Min Max UOM Type CAREL SVP ModBus R/W HcP C HAn Number of HA alarms MSYFCH I R C HA HA HACCP alarms acivaed (press Se) MSYFCH R HA2 y Alarm 1 o 3 - Year years I 70/76/ R M Alarm 1 o 3 - Monh monh I 71/77/ R d Alarm 1 o 3 - Day of he monh day I 72/78/ R h Alarm 1 o 3 - Hour hour I 73/79/ R n Alarm 1 o 3 - Minue minue I 74/80/ R Alarm 1 o 3 - Duraion hour I 75/81/ R C HFn Number of HF alarms MSYFCH I R C HF HF2 HF HACCP alarms acivaed (press Se) MSYFCH I - - R y Alarm 1 o 3 - Year years I 88/94/ R M Alarm 1 o 3 - Monh monh I 89/95/ R d Alarm 1 o 3 - Day of he monh day I 90/96/ R h Alarm 1 o 3 - Hour hour I 91/97/ R n Alarm 1 o 3 - Minue minue I 92/98/ R Alarm 1 o 3 - Duraion hour I 93/99/ R C Hd HACCP alarm delay 0 = Monioring disabled MSYFCH min I R/W 35

36 User Par. Descripion Models Def Min Max UOM Type CAREL SVP ModBus R/W rc C d1 8 Defros 1 o 8 (press Se) SYFCH R/W d Defros 1 o 8 - day day I 106/109/ / /209/ /227 R/W h Defros 1 o 8 - hour hour I 107/110/ /210/ /228 R/W n Defros 1 o 8 - minue min I 108/111/ /211/ /229 R/W C on Ligh/aux on ime SYFCH R/W d Day day I R/W h Hour hour I R/W n Minue minue I R/W C of Ligh/aux off ime SYFCH R/W d Day day I R/W h Hour hour I R/W n Minue minue I R/W C c Dae/ime (press Se) MSYFCH R/W y Dae/ime: year year I R/W m Dae/ime: monh monh I R/W d Dae/ime: day of he monh day I R/W u Day of he week day I R/W h Dae/ime: hour hour I R/W n Dae/ime: minue minue I R/W 7.14 Variables only accessible via serial connecion Descripion Type CAREL SVP Modbus R/W Virual probe A 3 3 R Probe 1 reading A 4 4 R Probe 2 reading A 5 5 R Probe 3 reading A 6 6 R Probe 4 reading A 7 7 R Number of parameer ses available I R Digial inpu 1 saus D 6 6 R Digial inpu 2 saus D 7 7 R Virual probe faul alarm D 9 9 R Probe alarm 1 D R Probe alarm 2 D R Probe alarm 3 D R Probe alarm 4 D R Compressor saus relay D 1 1 R Defros relay saus D 2 2 R Fan relay saus D 3 3 R AUX 1 relay saus D 4 4 R Digial inpu 1 saus D 6 6 R Digial inpu 2 saus D 7 7 R Defros saus D R Defros call command D RW Coninuous cycle saus D R Coninuous cycle call command D RW Door saus D R AUX acivaion command D RW Ligh acivaion command D RW Conroller / D RW Password I RW Virual probe faul alarm D 9 9 R Probe 1/2/3/4 faul alarm D 10/11/12/13/14 10/11/12/13/14 R Low emperaure alarm D R High emperaure alarm D R Immediae exernal alarm D R Delayed exernal alarm D R Evaporaor 1 defros imeou alarm D R Evaporaor 2 defros imeou alarm D R Pump down imeou alarm D R Low pressure alarm D R High condenser emperaure alarm D R Door open for oo long alarm D R RTC error D R Conrol parameer EEPROM error D R Operaing parameer EEPROM error D R HA HACCP alarm D R HF HACCP alarm D R Alarm auosar in pump down D R 36

37 8. SIGNALS AND ALARMS 8.1 Signals Signals are messages shown on he display o noify he user of he conrol procedures in progress (e.g. defros) or confirm he conrols from he keypad or remoe conrol. Code Icon Descripion Probe no enabled def Defros running dfb Sar defros call dfe End defros call cc Coninuous cycle ccb Sar coninuous cycle call cce End coninuous cycle call HcP Access HACCP menu Ed1 - Defros on evaporaor 1 ended by imeou Ed2 - Defros on evaporaor 2 ended by imeou On - Swich - Swich res - Rese alarms wih manual rese Rese HACCP alarms Rese emperaure monioring AUX - Auxiliary oupu acivaion call d/1 Display defros probe 1 Tab. 8.a 8.2 Alarms There are wo ypes of alarms: sysem: EEPROM, communicaion, HACCP, high (HI) and low (LO) emperaure; conrol: pump down ended by imeou (Pd), low pressure (LP). 8.3 Rese alarms All he alarms wih manual rese can be cleared by pressing Prg/mue and UP ogeher for more han 5 seconds. Example: manually rese he fros proecion alarm (AFr). 8.4 HACCP alarms and display To acivae monioring, see par (HACCP = Hazard Analysis and Criical Conrol Poin). HACCP allows conrol of he operaing emperaure, recording any anomalies due o power failures or an increase in he emperaure due o oher causes (breakages, exreme operaing condiions, user errors, ec.). Two ypes of HACCP even are managed: ype HA alarms, high emperaure during he operaion; ype HF alarms, high emperaure afer power failure (blackou). When an alarm is recorded, he HACCP LED flashes, he display shows he alarm code, he alarm is saved and he alarm relay and buzzer are acivaed. Example: display afer HA error and alarm rese: The EE/EF daa memory alarms shudown he conroller. The auxiliary digial oupu AUX can be configured o signal he alarm saus, normally open or normally closed. See chaper 5. The conroller indicaes alarms due o fauls on he conroller iself, on he probes or in nework communicaion. An alarm can also be acivaed from an exernal conac, immediae or delayed. See paragraph 5.2. The display shows IA or da and a he same ime he bell icon flashes and he buzzer is acivaed. If more han one error occurs, hese are displayed in sequence. Example: display afer HI error: To display he HA and HF alarms: ener he HACCP menu by pressing: + scroll he lis of alarms by pressing UP and DOWN; press Se o selec he required alarm (HA, HA1, HA2/HF, HF1, HF2); use UP or DOWN o see he descripion of he alarm: year, monh, day, hours, minues and duraion in minues of he seleced alarm; press Prg/mue again o reurn o he previous lis. Noe: o mue he buzzer press Prg/mue. In addiion, he HACCP alarm menu allows he following operaions: delee he HACCP alarm signal by pressing, for 5 seconds: + delee he HACCP alarm and all he alarms saved by pressing, for 5 seconds: + + This procedure displays he message res, delees he enire memory of alarms and reiniialises monioring of he HACCP alarms. 37

38 Code on display Cause of he alarm Icon flashing on display Alarm relay Buzzer Rese PD valve Compressor Defros Evaporaor fans re Virual conrol probe faul auom. duy seing (c4) duy seing (c4) duy seing (c4) Condenser fans Coninuous cycle AUX neural zone AUX ligh Ani-swea AUX auxiliary Ani-swea AUX second sep E0 Probe S1 faul auom. duy seing (c4) duy seing (c4) duy seing (c4) E1 Probe S2 faul auomaic E2 Probe S3 faul auom E3 Probe S4 faul auom LO Low emperaure alarm auom HI High emperaure alarm auom AFr Fros proecion alarm manual IA Immediae alarm from exernal conac auomaic duy seing (A6) duy seing (A6) duy seing (A6) da Delayed alarm from exernal conac auomaic duy seing (A6) if A7 0 if A7 0 if A7 0 duy seing (A6) if A7 0 Pd Alarm maximum pump down ime auomaic/ manual LP Low pressure alarm auomaic/ manual AS Auosar in pump down auomaic/ manual ch High condenser emp. pre-alarm - auomaic/ manual CH High condenser emperaure manual alarm dor Door open for oo long alarm auomaic Ec Real ime clock faul auomaic/ manual EE Uni parameer EEPROM error auomaic no run no run EF Operaing parameer EEPROM error auomaic no run no run HA Type HA HACCP alarm manual HF Type HF HACCP alarm manual n1...n6 indicae uni alarm in nework OM auomaic

39 8.5 Alarm parameers and acivaion HI High emperaure alarm AL (AH) is used o deermine he acivaion hreshold for he low (high) emperaure alarm LO (HI). The value se for AL (AH) is coninuously compared agains he value measured by he conrol probe. Parameer Ad represens he alarm acivaion delay, in minues; he low emperaure alarm (LO) is acivaed only if he emperaure remains below he value of AL for a ime greaer han Ad. The alarm may relaive or absolue, depending on he value of parameer A1. In he former case (A1=0), he value of AL indicaes he deviaion from he se poin and hus he acivaion poin for he low emperaure alarm is: se poin - AL. If he se poin changes, he acivaion poin also changes auomaically. In he laer case (A1=1), he value of AL indicaes he low emperaure alarm hreshold. The low emperaure alarm acive is signalled by he buzzer and LO shown on he display. The same applies o he high emperaure alarm (HI), wih AH insead of AL. Noe: If AL and AH alarms are se as relaive o se poin (A1=0), heir values has o be greaer han 0 Par Descripion Def Min Max UOM A0 Alarm and fan differenial C/ F A1 Type of hreshold AL and AH : AL and AH are relaive hresholds o he se poin 1: AL and AH are absolue hresholds AL Low emperaure alarm 0 A1= C/ F (alarm LO hreshold disabled) A1=0 0 (alarm LO AH High emperaure alarm hreshold Ad High and low emperaure alarm delay A6 Sop compressor on exernal alarm 0 = compressor always off; 100 = compressor always on A7 Digial alarm inpu delay 0 = conrol oupus unchanged disabled) 0 A1=1-50 A1=0 0 (alarm HI disabled) A1=1 200 (alarm HI disabled) A1=0 200 C/ F min min min Tab. 8.a Noe: alarms LO and HI have auomaic rese. A0 represens he hyseresis beween he alarm acivaion value and deacivaion value; if Prg/mue is pressed when he value measured is above one of he hresholds, he buzzer is immediaely mued, while he alarm code and he alarm oupu, if se, remain acive unil he value measured is ouside of he acivaion hreshold. For delayed alarms from digial inpu (A4=2, code da), he conac mus remain open for a ime greaer han A7. In he case of an alarm even, a couner sars and generaes an alarm when reaching he minimum ime A7. If during he coun he value measured reurns wihin he hreshold or he conac closes, he alarm is no signalled and he coun is rese. When a new alarm condiion occurs, he coun sars from 0 again. Parameer A6 has a similar meaning o parameer c4 (duy seing). If an exernal alarm occurs (immediae or delayed) he compressor works for a ime equal o he value se for A6 and remains off for a fixed ime of 15 minues. ALARM AL LO A0 HI A0 Fig. 8.a LO Low emperaure alarm S1 Conrol probe AH S1 8.6 HACCP alarm parameers and monioring HA alarms The alarm queue can be displayed by accessing parameers HA o HA2. The ype HA alarm is generaed if during normal operaion he emperaure read by he conrol probe exceeds he high emperaure hreshold for he ime Ad+Hd. Consequenly, compared o he normal high emperaure alarm already signalled by he conroller, he ype HA HACCP alarm is delayed by a furher ime Hd specifically for HACCP recording. The order of alarms lised is progressive, HA is he mos recen alarm. A maximum of 3 errors are saved, in a FIFO lis (HA o HA2): FIFO (Firs In Firs Ou) managemen means he firs error recorded is he firs o be cancelled when he lis is full and needs o be updaed. The las error saved is displayed for parameer HA. HAn indicaes he number of ype HA alarms acivaed. Par. Descripion Def Min Max UOM HAn Number of HA alarms HA HA2 HA HACCP alarms acivaed (press Se) y Alarm 1 o 3 - Year year M Alarm 1 o 3 - Monh monh d Alarm 1 o 3 Day of he monh day h Alarm 1 o 3 Hour hour n Alarm 1 o 3 Minue minue --- Alarm 1 o 3 Duraion hour Hd HACCP alarm delay 0 = Monioring disabled min Tab. 8.b Sv AH S ALARM Ad Fig. 8.b Hd S1 Virual probe Ad High and low emperaure alarm delay S Se poin Hd HACCP alarm delay 0 = monioring disabled AH High emperaure alarm hreshold Time ALARM HA HACCP alarm HF alarms The ype HF HACCP alarm is generaed following a power failure for an exended ime (> 1 minue), if when power reurns he emperaure read by he conrol probe exceeds he AH high emperaure hreshold. HFn indicaes he number of ype HF alarms acivaed. Par. Descripion Def Min Max UOM HFn Number of HF alarms HF HF2 HF HACCP alarms acivaed (press Se) y Alarm 1 o 3 - Year year M Alarm 1 o 3 - Monh monh d Alarm 1 o 3 Day of he monh day h Alarm 1 o 3 Hour hour n Alarm 1 o 3 Minue minue 39

40 AH S1 S ALARM 8.8 Fros proecion alarm The fros proecion alarm is only acive if a probe has been se as he fros proecion probe. If his probe measures a emperaure less han he hreshold ALF for a ime greaer han AdF, he alarm AFr (manual rese) is shown. See he parameer able. Par Descripion Def Min Max UOM ALF Fros proecion alarm hreshold C/ F AdF Fros proecion alarm delay min Tab. 8.d black ou Fig. 8.c S1 Conrol probe Ad High and low emperaure alarm delay AH High emperaure alarm hreshold ALARM HF HACCP alarm Time S Se poin Hd HACCP alarm delay 0 = monioring disabled 8.7 High condenser emperaure alarm The condenser emperaure can be moniored and high emperaure siuaions signalled, mos likely when he condenser is blocked. The following figure describes he signal. Par Descripion Def Min Max UOM Ac High condenser emperaure alarm hreshold C/ F AE High condenser emperaure alarm differenial C/ F Acd High condenser emperaure alarm delay 0 = Immediae alarm min Tab. 8.c Ac Sc Ac - AE/2 Ac - AE S ALARM AFr ALF Fig. 8.e AdF Time AdF Fros proecion alarm delay AFr Fros proecion alarm hreshold 8.9 Defros ended by imeou alarm Alarms Ed1 and Ed2 signal ha a defros has ended when reaching he maximum defros duraion. This can be disabled by seing A8 = 0. Par Descripion Def Min Max UOM A8 Enable alarms Ed1 and Ed2 (end defros by imeou) 0 = alarms disabled min Tab. 8.e ch CHT Acd Fig. 8.d Time Ac High cond. emperaure alarm hreshold Acd Alarm delay ch High cond. emperaure pre-alarm Sc Condenser probe CHT High condensing emperaure alarm AE High condensing emperaure alarm differenial 40

41 9.1 ir33+ echnical specificaions 9. TECHNICAL SPECIFICATIS Power supply Model Volage Power IREVx0ExxU 230 V~, 50/60 Hz 3 VA, 25mA ~ max IREVC0HxxU 115/230 V~, 50/60 Hz 6 VA, 50mA ~ max IREVx0LxxU 12 o 24 V ~, 50/60 Hz, 12/30 Vdc 3 VA, 300 ma ~/ madc max Insulaion guaraneed by he power supply IREVx0ExxU insulaion from exra low volage pars reinforced, 6 mm clearance, 8 mm creepage, 3750V insulaion IREVC0HxxU insulaion from relay oupus basic, 3 mm clearance, 4 mm creepage, 1250V insulaion IREVx0LxxU insulaion from exra low volage pars o be guaraneed exernally by safey ransformer (SELV) Inpus S1 (probe 1) NTC S2 (probe 2) NTC DI1 volage-free conac, conac resisance < 10, closing curren 6 ma S3 NTC DI2 volage-free conac, conac resisance < 10, closing curren 6 ma S4 NTC Maximum disance beween probes and digial inpus less han 10 m Noe: in he insallaion i is recommended o separae he power and load connecions from he probe, digial inpu, display and supervisor cables. Probe ype Sd. Carel NTC 10k a 25 C, range from 50T90 C measuremen error: 1 C in he range 50T50 C 3 C in he range +50T90 C Relay depending on he model EN UL 873 oupus model relay 250 V~ operaing cycles 250 V~ operaing cycles IREVx0ExxU R3(*) 5 (1) A A res 1 FLA LRA C300 IREVx0ExxU R1, R2 8 (4)A N.O. 6(4) A N.C A res 2 FLA IREVx0(L,H)xxU R2, R3, R4 (*) 2(2) A N.O./N.C. 12 LRA C300 IREVx0(L,H)xxU R1 12 (2)A N.O./ N.C LRA C300 insulaion from exra low volage pars reinforced, 6 mm clearance, 8 mm creepage, 3750 V insulaion insulaion beween independen relay oupus basic, 3 mm clearance, 4 mm creepage, 1250 V insulaion Connecions Cable cross-secion from 0.5 o 2.5 mm2 max curren 12 A (*): Relay no suiable for fluorescen loads (neon lighs, ec.) ha use sarers (ballass) wih phase shifing capaciors. Fluorescen lamps wih elecronic conrollers or wihou phase shifing capaciors can be used, depending on he operaing limis specified for each ype of relay. The correc sizing of he power and connecion cables beween he insrumen and he loads is he insaller s responsibiliy. Depending on he model, he maximum curren a common erminals 1, 3 or 5 is 12 A. If using he conroller a maximum operaing emperaure and a full load, he cables used mus be suiable for operaion a leas up o 105 C. Clock error a 25 C ±10 ppm (±5 min/year) error a 25 C -10T60 C -50 ppm (27 min/year) Operaing emperaure -10T60 C for all versions Operaing humidiy < 90% RH non-condensing Fron panel ingress proecion assembly on smooh and indeformable panel wih IP65 gaske Environmenal polluion 2 (normal siuaion) PTI of insulaing maerials prined circuis 250, plasic and insulaing maerials 175 Period of sress across he insulaing pars long Hea and fire resisance caegory caegory D and caegory B (UL 94-V0) Class of proecion agains volage surge caegory II Type of acion and disconnecion 1.B relay conacs (microswiching) Consrucion of he conrol device buil-in, elecronic Classificaion according o proecion agains elecric shock class II when appropriaely inegraed Maximum disance beween inerface and display 10 m Programming key available on all models Safey sandards complian wih relevan European sandards Tab. 9.a 41

42 10. APPENDIX 1: VPM (VISUAL PARAMETER MANAGER) 10.1 Insallaion Go o hp://ksa.carel.com and selec he following pah: Sofware & Suppor Configuraion & Updaing Sofwares Parameric conroller sofware hen selec Visual Parameric Manager. A dialogue box is opened, wih he possibiliy o download 3 files: 1. VPM_CD.zip: for burning a CD/DVD; 2. Upgrade seup; 3. Full seup: his is he complee program. For firs insallaions, selec Full seup, for upgrades selec Upgrade seup. The program is insalled auomaically by running seup.exe. Imporan: if deciding o run he complee insallaion (Full seup), uninsall any previous versions of VPM Opening he program Programming can be performed using he key (IROPZKEYA0), conneced o he compuer via he converer (IROPZPRG00). When opening he VPM program, choose he device o be configured: ir33. The Home page is displayed, wih he opions o creae a new projec or open an exising projec. Choose new projec and ener he password, which can be se as desired by he user he firs ime. Selec he OEM profile. Selec he key connecion por using he guided procedure (Wizard); Fig. 10.c Connec he programming key o he converer Programming Go o he Configure device page and selec Read Fig. 10.d Fig. 10.a Then: 1. upload he conrol parameers o he key, as described in chaper 2; 2. read he parameers from he key Compuer - key connecion To connec he compuer o he key: Selec he lis of parameers on he E2PROM key as he source; Fig. 10.e A progress bar is displayed. When reading he daa, he LEDs on he converer flash, and a he boom righ he message LINE is displayed. Fig. 10.f Fig. 10.b 42

43 A he end, he lis of parameers read is displayed. Noe: on he conroller, Se0, Se1,, Se6 are named bn0 o bn6 respecively; Se0 is he defaul se on he conroller, i.e. he defaul configuraion. When loading a differen se (Se1...Se6), Se0 is overwrien wih he new se and is consequenly erased Wrie parameers To wrie he parameers o he conroller: Wrie he parameers o he key by selecing Wrie ; Fig. 10.g 10.5 Modify a parameer Move he cursor o he Wrien column and double click he cell: ener he new value. Fig. 10.k Transfer he parameers from he key o he conroller using he Download funcion, as described in he chaper on Insallaion. Fig. 10.h 10.6 Add a se of parameers Up o 6 se of parameers can be added o Se0: Se0, Se1, Se2, Se3, Se4, Se5, Se6. To do his: move he cursor o Se0 and click he righ buon; choose Add se for each addiional se; Se1 is displayed Fig. 10.i Fig. 10.j 43