ID 975 LX USER INTERFACE. electronic controllers for forced air refrigeration units. fnc. set. set. cod. 9IS42054 rel. 4/05

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1 GB cod. 9IS454 rel. 45 ID 975 LX electronic controllers for forced air refrigeration units USER INTERFACE The user has a displa and four kes for controlling status and programg of the instrument. KEYS AND MENUS UP ke DOWN ke fnc ke ke Scrolls through the menu items Increases the values Activates manual def. function (see parameter H3) Scrolls through the menu items Decreases the values Programmable b parameter (see parameter H3) ESC function (exit) Programmable b parameter (see parameter H33) Accesses the point Accesses the menus Confirms the commands Displaing the alarms (if present) ACCESSING AND USING MENUS Resources are arranged in a menu, which can be accessed b pressing and quickl releasing the ke ( Machine Status menu) or b holding down the ke for more than 5 seconds ( Programg menu). To access the contents of each folder, indicated b the relevant label, just press the ke once. You can now scroll through the contents of each folder, modif it or use its functions. If ou do not use the keboard for over 5 seconds (time-out) or if ou press the fnc ke once, the last value shown on the displa is confirmed and ou return to the previous view. LED ID 975LX fnc MACHINE STATUS MENU (See Machine Status Menu Diagram) To access the Machine Status menu Press and quickl release the ke. If alarms are not present, the label SEt appears. B using the UP and DOWN kes ou can scroll through the other folders in the menu: -: alarm folder (if alarms present, except for fault probe(s)probe(s) error(s); -Pb: probe value folder; -Pb: probe value folder - if present (parameter H4=) -SEt: Setpoint ting folder. Set Setting Access the Machine Status menu b pressing and quickl releasing the ke. The label of the SEt folder appears. To displa the Setpoint value press the ke again. The value appears on the displa. To change the Setpoint value, use the UP and DOWN kes within 5 seconds. If the parameter is LOC = the Setpoint cannot be changed. Alarm on If alarm condition exists, when accessing the Machine Status menu the folder label appears (see the Diagnostics section). Displaing Probes B pressing the ke when the appropriate label appears, the value of the probe associated to it is displaed. PROGRAMMING MENU (See Programg Menu Diagram) ) Level Parameters To access the Programg menu, press the ke for more than 5 seconds. If specified, the level access PASSWORD will be requested (see parameter PA ) and (if the password is correct) the label of the first folder will follow. If the password is wrong, the displa will show the PA label again. To scroll other folders, use the UP and DOWN kes; the folders contain onl the level parameters. Position Related Function Status Compressor ON when the compressor is started up; blinking in case of dela, protection or blocked enabling Defrost Alarm eco fnc ON when defrosting; blinking in case of manual enabling ON when the alarm is enabled; blinking when the alarm is silenced NOTE: At this point level parameters are NOT visible, even if the aren t protected b password. ) Level Parameters In the Programg Menu go into the folder, scroll all the parameter until ou reach the PA label. B pressing and releasing the button ou will enter to level parameters and the label of the first folder in the programg menu will follow. The level parameters ma be protected b a second password (see PA parameter inside folder, not to be confused with PA label inside folder. If specified, level parameters are hidden to user; accessing the folder the level access PASSWORD will be requested and (if the correct password is entered) the label of the first folder in the programg menu will follow. NOTE: At this point ou will see onl level parameters. Level parameters will NOT be visible; to reach them ou need to exit the Programg Menu and enter the Programg Menu section again (see step ). To enter the folder, press. The label of the first visible parameter appears. To scroll through the other parameters, use the UP and DOWN kes; to change the parameter, press and release, then the desired value using the UP and DOWN kes, and confirm with the ke. Move to the next parameter. PLEASE NOTE: It is suggested to switchoff and switch-on again the instrument evertime it is changed the configuration of the parameters: this prevents malfunctioning on regulation and dela time occuring. PASSWORD The passwords PA and PA allow access respectivel to level and level parameters. In the standard configuration passwords are not present. To enable them (value ) and assign them the desired value, access the Programg menu, within the folder with the label. If passwords are enabled, the will be requested: - PA at the entrance of the Programg menu (see the Programg Menu section); - PA within the folder with the Cnf label containing level parameters. Fans ON when the fan is working

2 MANU ACTIVATION OF THE DEFROSTING CYCLE To manuall activate the defrosting ccle, press the UP ke for 5 seconds. If defrosting conditions are not present, (for example the evaporator probe temperature is higher than defrost stop temperature), the displa will blink 3 times, in order to indicate that the operation will not be performed. COPY CARD The Cop Card is an accessor connected to the TTL serial port used forquick programg of the instrument parameters. The operation is performed as follows: Format (level ) This command allows cop card formatting, an operation recommended in case of first use. Warning: if the cop card has been programmed, using the Fr the data entered are erased. This operation cannot be cancelled. Upload This operation loads the programg parameters from the instrument. Download This operation downloads to the instrument the programg parameters. NOTE: UPLOAD: instrument --> Cop Card DOWNLOAD: Cop Card --> instrument. The operations are performed b accessing the folder identified b the FPr label and selecting, according to the case, UL, dl or Fr commands; the operation is confirmed b pressing the ke. If the operation is successful an is displaed, on the contrar, if it fails a n will be displaed. KEYBOARD LOCKING The instrument includes a facilit for disabling the keboard, b programg the Loc parameter (see folder with label). If the keboard is locked, ou can still access the programg menu b pressing the ke. The Setpoint can also be viewed. DIAGNOSTICS The alarm condition is alwas signalled b the buzzer (if present) and b the led of the alarm icon The alarm signal produced b a fault thermostat probe (referred to probe ) is shown as E on the instrument displa The alarm signal produced b a fault evaporator probe (probe ) is shown as E on the instrument displa. Probe faults table DISPLAY FAULT E Fault probe (thermostat) Fault E probe (evaporator) If simultaneous, the will be shown on the displa alternatel, ever seconds The error condition of the probe (thermostat) causes the following: viewing E code on the displa activating compressor as indicated b Ont and OFt parameters: Ont > > OFt > > Compressor output OFF OFF ON dc (dut ccle) Other signalling alarm are not shown on the instrument displa, but from the Machine Status menu within the folder. The signals for maximum and imum alarms do not appear on the instrument displa but are viewable on the Machine Status menu in the folder, with the label AH or. The regulation of the maximum and imum temperature alarm refers to the room probe. The temperature limits are defined b the parameters H (maximum alarm) and L (imum alarm). MINIMUM AND MAXIMUM TEMPERA- TURE ARMS Regulation of the imum and maximum temperature alarms refers to the thermostat probe. The temperature limits defined b the H (maximum temperature alarm) and L parameters (imum temperature alarm) are as temperature absolute values or as differential compared to the Setpoint, depending on Att parameter. When an alarm status occurs, if no alarm exclusion phases are underwa (see alarm exclusion parameters), the alarm icon is lit up and the buzzer, andor the rela configured as an alarm, is activated. The occurrence of this alarm does not in anwa effect the control activities in progress. This alarm status can be viewed in the folder with AH- labels. DEFROST ARM If defrosting does not reach the end of ccle temperature but is terated b a time out, the alarm controller is immediatel activated. This condition can be viewed in the folder with the label Ad. Automatic back swing occurs when the next defrost starts. B pressing an ke during the alarm condition, the signal light disappears. In order to reall erase the alarm ou must wait for the next defrost. DISPLAY ARM AH High temperature alarm (referred to the thermostat probe or probe ) Low temperature alarm (referred to the thermostat probe or probe ) Ad End of defrost due to time-out To silence alarms press an ke. Alarms are in absolute value or related to Setpoint (considered as the distance from the Setpoint itself) depending on Att parameter. INSTLATION The instrument is designed for panel mounting. Make a hole of 9x7 mm, insert the instrument and fix it using the brackets provided. Do not mount the instrument in humid andor dirt places; it is suitable for use in ordinar polluted places. Ventilate the place in proximit to the instrument colling slits. ELECTRIC WIRING Attention! Never work on electrical connections when the machine is switched on. The instrument is equipped with screw teral boards for connection of electrical cables with a diameter of.5 mm (one conductor onl per teral for power connections). For the capacit of the terals, see the label on the instrument. The rela contacts are voltage free. Do not exceed the maximum current allowed; in case of higher loads, use an appropriate contactor. Make sure the power suppl voltage complies with the one required b the instrument. The power suppl must be provided b a securit transformer with the protection of a delaed 5 ma fuse. Probes have no connection polarit and can be extended using a regular bipolar cable (note that the extension of the probes affects the EMC electromagnetic compatibilit of the instrument: pa extreme attention to wiring). Probe cables, power suppl cables and the TTL serial cables should be distant from power cables. CONDITIONS OF USE PERMITTED USE For safet reasons the instrument must be installed and used according to the instruction provided and in particular, under normal conditions, parts bearing dangerous voltage levels must not be accessible. The device must be adequatel protected from water and dust as per the application and must also onl be accessible via the use of tools (with the exception of the frontlet). ID 975 LX 7

3 The device is ideall suited for use on household appliances andor similar refrigeration equipment and has been tested with regard to the aspects concerning European reference standards on safet. It is classified as follows: according to its manufacture: as an automatic electronic control device to be incorporated b independent mounting; according to its automatic operating features: as a B-tpe operated control tpe; as a Class A device in relation to the categor and structure of the software UNPERMITTED USE An other use other than that permitted is de facto prohibited. It should be noted that the rela contacts provided are of a practical tpe and therefore subject to fault. An protection devices required b product standards or dictated b common sense due to obvious safet reasons should be applied externall. LIABILITY AND RESIDU RISKS Eliwell & Controlli S.r.L. shall not be liable for an damages deriving from: - installationuse other than that prescribed and, in particular, that which does not compl with safet standards anticipated b regulations andor those given herein; - use on boards which do not guarantee adequate protection against electric shock, water or dust under the conditions of assembl applied; - use on boards which allow access to dangerous parts without the use of tools; - tampering with andor alteration of the products; TECHNIC DATA Frontal panel protection: IP65. Casing: plastic bod in resin tpe PC+ABS UL94 V-, inspection window in polcarbonate, buttons in thermoplastic resin. Dimensions: frontal panel 74x3 mm, depth 6 mm. Installation: on panel, with drilling template 7x9 mm (+.. mm). Use temperature: 5 55 C. Storage temperature.: 3 85 C. Use environment humidit: 9 % RH (not condensing). Storage environment humidit: 9% RH (not condensing). Viewing range: 5 (NTC); 55 4 (PTC) C without decimal point (selectable through parameter) on 3 digit & + mark displa. Analog inputs: two PTC or NTC inputs (programmable b parameter). Serial: TTL for connection to Cop Card or Televis sstem. Digital outputs: 4 rela contacts: (A), (B): SPST 8(3)A 5Va, (C), (D): SPST 5()A 5Va. Measuring range: from 55 to 4 C. Accurac:.5% better than end scale + digit. Resolution: or. C. Power: 3 VA. Power suppl: Vac. The technical characteristics in this document concerning measurements (range, accurac, resolution, etc.) refer to the instrument in the strictest sense and not to an accessories provided such as probes, for example. This means that an error introduced b the probe is added to an error that is in the instrument. TelevisSstem BusAdapter35 TTL - RS-485 serial interface on DIN rail to connect the device to a RS-485 network designed for the connection to a Televis supervision sstem. PCInterface RS-3RS-485 serial interface to connect a PC to several devices connected to a RS-485 network. The BlueCard activation module with Eliwell software license must be plugged into the special slot. TTL BusAdapter RS485 Personal Computer + PCI - TelevisCompact - TelevisStation MAXMIN ARM DIAGRAM Temperature expressed as an absolute value (par Att) Abs(olute) Temperature expressed in relation to point (par Att =) rel(ative) Off Minimum temperature alarm Maximum temperature alarm L H Temperature lower than or equal to L (L with sign) Temperature higher than or equal to H (H with sign) + L +H Temperature lower than or equal to point+l (- L ) (L onl negative) Temperature higher than or equal to point+h (H onl positive) Minimum temperature alarm back swing Maximum temperature alarm back swing Temperature higher than or equal to L+ Temperature lower than or equal to H- Temperature higher than or equal to point + L + point - L + Temperature lower than or equal to point+h- if Att=reL(ative) L must be negative: therefore point+l< point because point+(- L )= point- L ID 975 LX 37

4 Tab. Parameter Table **NOTE: At level the folders will show onl level parameters. At level the folders will show onl level parameters. PAR. DESCRIPTION COMPRESSOR REGULATOR (folder with label) dif differential. Rela compressor tripping differential. The compressor stops on reaching the Setpoint value (as indicated b the adjustment probe), and restarts at temperature value equal to the Setpoint plus the value of the differential. Note: the value cannot be assumed. HSE Higher SEt. Maximum possible point value. LSE Lower SEt. Minimum possible point value. OSP Off Setpoint: temperature value to be added algebraicall to the point in the case of reduced enabled (Econom function). It can be activated through a ke configured for such use. Cit Compressor on time. Minimum compressor activation time before an possible disabling. If at it is not active CAt Compressor max on time. Maximum compressor activation time before an possible disabling. If at it is not active COMPRESSOR PROTECTIVE DEVICE (folder with label) Ont () On time (compressor). Compressor activation time in the event of fault probe. If to with OFt at the compressor is alwas on, while at OFt > it functions alwas in dut ccle mode. See Dut Ccle table OFt () OFF time (compressor). Compressor in disabled state time in the event of a fault probe. If to with Ont at the compressor is alwas off, while at Ont > it functions alwas in dut ccle mode. See Dut Ccle table don dela (at) On compressor. Dela time in activating the compressor rela after switch-on of instrument dof dela (after power) OFF. Dela after switch off; the indicated time must elapse between switch-off of the compressor rela and the successive switch-on. dbi dela between power-on. Dela between switch-ons; the indicated time must elapse between two successive switch-ons of the compressor. OdO dela Output (from power) On. Dela time in activating the outputs after switch-on of the instrument or after a power failure. DEFROSTING REGULATOR (folder with label) dt defrost tpe. Tpe of defrosting. = electric defrost; = reverse ccle defrost (hot gas); = Free defrost (compressor independent). dit defrost interval time. Interval between the start of two successive defrosting operations. dt defrost time. Measure unit for defrosting intervals ( dit parameter). = dit parameter in hours; = dit parameter in utes; = dit parameter in seconds. dt defrost time. Measure unit for defrosting duration ( det parameter). = det parameter in hours; = det parameter in utes; = det parameter in seconds. dct defrost Counting tpe. Selection of count mode for the defrosting interval. = compressor operating hours (DIGIFROST method); = appliance operating time; = compressor stop. doh defrost Off Hour. Start-of-defrosting dela time - to be added to dit RANGE...3. LSE HSE DEFAULT h VUE* LEVEL** U.M. C F C F C F C F sec hours det dst dpo tcd defrost Endurance time. Defrosting time-out; deteres duration of defrosting. defrost Stop temperature. Defrost stop temperature (defined b the evaporator probe). defrost (at) Power On. Deteres if at the start-up the instrument must enter defrosting = es; n = no. time compressor for defrost. Minimum time for compressor On or OFF before defrost. Negative values: compressor must be OFF for the time b tcd (before defrost) Positive values : compressor must be ON for the time b tcd (before defrost) n n C F Cod FPt FSt Fot Compressor off (before defrost). Time for compressor OFF in proximit of the defrost ccle. If a defrost ccle is within the programmed time for this parameter, the compressor is not started up. FAN REGULATOR (folder with label) Fan Parameter tpe. FSt parameter mode. It can be displaed as temperature absolute value or as value related to Setpoint. = absolute; = relative. Fan Stop temperature. Fan lock temperature; if the value, read b the evaporator probe, is higher than the value, fans stop. Fan on-start temperature. Fan starting temperature; if the temperature read b the evaporator is lower than the value for this parameter, fans sta still C F C F FAd Fdt dt dfd FCO FdC Fan differential. Fan starting differential (see par. FSt and Fot ). Fan dela time. Dela time in activating fans after a defrost operation. drainage time. Dripping time. defrost Fan disable. Allows to select the evaporator probes exclusion during defrost. = es; n = no. Fan Compressor OFF. Allows to select compressor fans lock OFF (switched off). = fans activated (with thermostat; based on the value read b the defrost probe, see parameter FSt ); n = fans off; dc = dut ccle (b parameters Fon and FoF ). Fan dela Compressor off. Fan stop dela time after compressor stop n ndc..99. C F ID 975 LX 47

5 PAR. Fon FoF Att H L PAO dao tao dat AOP dea FAA LOC PA PA*** ndt CA CA CA LdL HdL ddl dro ddd H H H H H3 H4 H3 H3 DESCRIPTION Fan off (in dut ccle). Fan OFF time due to dut ccle Fan use with dut ccle mode; valid for FCO = dc Fan off (in dut ccle). Fan OFF time due to dut ccle Fan use with dut ccle mode; valid for FCO = dc ARMS (folder with label) Alarm tpe. Parameter H and L modes, as temperature absolute values or as differential compared to the Setpoint. = absolute value; = relative value. Alarm differential. Alarm differential. High arm. Maximum temperature alarm. Temperature value (absolute or related to Setpoint depending on Att parameter) which if exceeded in an upward direction triggers the activation of the alarm signal. See MaxMin. Alarm Diagram; Low arm. Minimum temperature alarm. Temperature value(absolute or related to Setpoint depending on Att parameter), which if exceeded in a downward direction, triggers the activation of the alarm signal. See MaxMin. Alarm Diagram. Power-on Alarm Override. Alarm exclusion time after instrument switch on, after a power failure. defrost Alarm Override. Alarm exclusion time after defrost. temperature Alarm Override. Temperature alarm signal dela time. defrost Alarm time. Alarm for defrost end due to time-out. n = does not enable alarm; = enables alarm. Alarm Output Polarit. Polarit of alarm output. = alarm activated and output disabled; = alarm activated and output enabled. COMUNICATION (folder with label ) dea= device ber within the famil (valid values: from to 4) FAA= device famil (valid values: from to 4) The value couple FAA and dea represents the network address of the device and it is indicated in the following wa: "FF.DD" (where FF=FAA and DD=dEA). DISPLAY (folder with label) (keboard) LOCk. Keboard locking. However, ou can enter parameter programg modif them along with the status of this parameter in order to allow keboard locking. = es; n = no PAssword. When enabled (value other than ) it constitutes the access ke for level parameters. PAssword. When enabled (value other than ) it constitutes the access ke for level parameters. ber displa tpe. View with decimal point. = es; n = no Calibration. Positive or negative temperature value added to the value read b probe, based on CA parameter tings. Calibration. Positive or negative temperature value added to the value read b probe, based on CA parameter tings. CAlibration Intervention. Intervention on view off, thermostat off or both. = modifies the temperature displaed onl; = modifies the temperature used b regulators, not the temperature displaed, which stas unchanged. = modifies the temperature displaed that is also used b regulators. Low displa Label. Minimum value the instrument is able to displa. High displa Label. Maximum value the instrument is able to displa. defrost displa Lock. Viewing mode during defrosting. = shows the temperature read b the thermostat probe; = locks the reading on the temperature value read b thermostat probe when defrosting starts, and until the next time the Setpoint value is reached; = displas the label def during defrosting, and until the next time the Setpoint value is reached. displa read-out. Select C or F for displaing the temperature read b the probe. = C, = F. PLEASE NOTE: the switch between C and F DO NOT modif point, differential, etc. (for example = C become F). Selection of the value tpe to be shown on the displa. = Setpoint; = probe ; = probe. CONFIGURATION (folder with label) Probe tpe selection, PTC or NTC. = PTC; = NTC. Time to enable kes, if these are configured for a specific function. Configurabilit digital output (B) = disabled; = compressor; = defrosting; 3 = fans; 4 = alarm; 5 = auxiliar. Configurabilit digital output (A) Same as H. Configurabilit digital output (C) Same as H Configurabilit digital output (D) Same as H Configurabilit UP ke = disabled; = defrosting; = auxiliar; 3 = reduced (econom). Configurabilit DOWN ke = disabled; = defrosting; = auxiliar; 3 = reduced (econom). RANGE L H n n n DEFAULT n n VUE* LEVEL** U.M. C F C F C F hours C F C F C F C F sec ID 975 LX 57

6 PAR. H33 H4 H4 rel tab DESCRIPTION RANGE Configurabilit fnc ke (ESC function)...3 = disabled; = defrosting; = auxiliar; 3 = reduced (econom). Regulating probe present. n Evaporator probe present. n release firmware. Device version: read onl parameter. table of parameters. Reserved: read onl parameter. label PA Inside folder it is possible to reach all level parameters from label PA b pressing the button SEE ) level Parameters paragraph DEFAULT VUE* LEVEL** U.M. Fpr UL dl Fr COPY CARD (folder with Fpr label) Up load. Programg parameter transfer from instrument to Cop Card. Down load. Programg parameter transfer from Cop Card to instrument Format. Erasing all data in the cop card. PLEASE NOTE : using Fr parameter (cop card formatting) the data within the cop card will be lost permenentl. The operation cannot be cancelled. () See Dut Ccle Diagram * VUE column: to be filled manuall, with customized tings (if different from the default value). ** LEVEL column: indicates the level of visibilit of parameters accessible b PASSWORD (see the related paragraph) *** PA is visible (it will be required, if necessar) at level and can be (editable) at level (!) WARNING! If one or more of these parameters highlighted with (!) are modified, teh controlller must be switched off and switched on again to ensure correct operation. It is strongl recommended, anwa to switch off and switch on again the controller antime parameters have been changed to prevent malfunctioning on configuration andor ongoing tigs. press for 5 sec PA PARAMETERS Level folders Level folders PA value FPr FPr level par level par level par level par level par PA value level par level par level par level par PA level par level par level par scroll parameters change par value level par PA level par level par Fpr Fpr level par level level Programg Menu Diagram ID 975 LX 67

7 press and release (single press) alarms show alarms if alarm(s) present SEt SEt value change SEt value Pb Pb value Pb Pb value if Pb is present (H4=) Status Machine Diagram Wiring diagram TERMINS - Common rela contact (A)-(B)-(C)-(D) 5A max. 3 Defrost rela output (A) configurable (see par. H) 4 Compressor rela output (B) configurable (see par. H) 5 Fan rela output (C) configurable (see par. H3) 6 Auxiliar or alarm rela output (D) configurable (see par. H4) 7-8 Power suppl Vac 9 - Probe input (evaporator) Pb 9 - Probe input (thermostat) Pb A TTL input for Cop Card and connection to Televis sstem NOTE: Default user tings (see diagram below) ID 975 LX A (A) (B) (C) (D) Pb Pb Eliwell & Controlli s.r.l. Via dell'industria, 5 Zona Industriale Paludi 3 Pieve d'alpago (BL) ITY Telephone Facsimile Internet Suppl Technical Customer Support: Telephone techsuppeliwell@invenss.com Invenss Controls Europe An Invenss Compan 45 eng cod. 9IS454 DISCLAIMER This manual and its contents remain the sole propert of Eliwell & Controlli S.r.L. and shall not be reproduced or distributed without authorization. Although great care has been exercised in the preparation of this document, Eliwell & Controlli S.r.L., its emploees or its vendors, cannot accept an liabilit whatsoever connected with its use. Eliwell & Controlli S.r.L. reserves the right to make an changes or improvements without prior notice. ID 975 LX 77