Operation & Service Manual MICROPROCESSOR

Transcription

1 MICROPROCESSOR Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #1/66

2 MICROPROCESSOR Table of content Description... 4 PC Board... 4 Connectors... 5 MP connector... 5 CBUSd connector... 7 Supply voltage... 8 Unit Configurations... 9 Accessibility... 9 Values Operation COOL mode Description Pre-heating & CFM Starting sequence Definition Logic Short starting Normal starting Long starting Liquid slugging starting Control modes Overrides Cool priority Mode change Stopping sequence HEAT mode Description Starting/Stopping sequences Overrides Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #2/66

3 MICROPROCESSOR Table of content Definition Regulation closed to set point Overrides DEFROST Description Operation Defrost logic Manual defrost Automatic defrost Scheduled defrost Stopping sequence Data & security Alarm types Alarms list Condenser Compartment 1 & Generator Inverter Software evolution Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #3/66

4 Microprocessor Description PC Board The Puslor microprocessor is the same for all version(single or multi-temp) as well for the software 1. Microprocessor Sticker or 24 Vdc Battery (M6 stud) or 24 Vdc Auxiliary (M5 stud) 4. MP connector 5. Ground ( M6 stud) 6. Cap Seal The microprocessor sticker contains the following information: 7. Part number 8. Serial number 9. Software revision Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #4/66

5 Microprocessor Description Connectors MP connector CN1-1 Signal CAN2H CN1-2 Signal CAN1H CN1-3 Power output LED- out CN1-4 Not used CN1-5 Power output V-cab2 CN1-6 Power output V-cab1 CN1-7 Analog input CSP CN1-8 Power output 5Vdc CSP CN1-9 Analog input CDP CN1-10 Power output 5Vdc CN1-11 Power output 5Vdc CN1-12 Power output 5Vdc CN1-13 Power output 5Vdc CN1-14 Power output 5Vdc CDP & CDT DTTb sensor DTTa sensor RATb sensor RATa sensor CN1-15 Power output 5Vdc AAT sensor (option) CN1-16 Power output 12 or 24Vdc DWRb (10 Amps max) CN1-17 Digital input DSb CN1-18 Digital input DSa Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #5/66

6 Microprocessor Description Connectors MP connector CN1-19 Power output 12 or 24 Vdc DWRa (10 amps max) CN1-20 Power output 12 or 24 Vdc PEV (2 amps max) CN1-21 PWM signal EFMc (speed control) CN1-22 Power output 12 or 24 Vdc EFMc (12.6 amps max) CN1-23 Power output 12 or 24 Vdc LVb (2amps max) CN1-24 PWM signal EFMb (speed control) CN1-25 Power output 12 or 24 Vdc EFMb (12.6 amps max) CN1-26 Power output 12 or 24 Vdc LVa (2 amps max) CN1-27 PWM signal EFMa (speed control) CN1-28 Power output 12 or 24 Vdc EFMa (12.6 amps max) CN1-29 Signal CAN2L CN1-30 Signal CAN1L CN1-31 Digital out put Wake up- CN1-32 Digital input ON CN1-33 Ground CAN2 CN1-34 Ground CAN1 CN1-35 Digital input Ignition key CN1-36 Groud output CSP CN1-37 Analog input CDT CN1-38 Ground output CDP & CDT CN1-39 Analog input DTTb sensor CN1-40 Analog input DTTa sensor CN1-41 Analog input RATb sensor CN1-42 Analog input RATa sensor CN1-43 Analog input AAT sensor (Option) CN1-44 Ground output DWRb CN1-45 Digital Output DSb CN1-46 Digital output DSa CN1-47 Ground output DWRa CN1-48 Ground output PEV CN1-49 Digital input EFMc (Tachometer return) CN1-50 Ground output EFMc- CN1-51 Ground output LVb CN1-52 Digital input EFMb (Tachometer return) CN1-53 Ground output EFMb CN1-54 Ground output LVa CN1-55 Digital input EFMa (Tachometer return) CN1-56 Ground output EFMa Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #6/66

7 Microprocessor Description Connectors CBUSd connector The CAN BUSd (d=display) is used for - the communication between the cab command and the microprocessor trough CAN 1 - the communication between a third device and the microprocessor trough CAN 2 The microprocessor is also communicating with the inverter through an parallel harness of the CAN1 From Micro 14 way sealed connector=can1 To main harness (cab command) Coming from Mp connector Can bus connector CN1-1 Signal CAN2H Pin 8 CN1-2 Signal CAN1H Pin 1 CN1-3 Power output LED- out Pin 12 CN1-5 Power output V-cab2 Pin 11 CN1-6 Power output V-cab1 Pin 6 CN1-29 Signal CAN2L Pin 9 CN1-30 Signal CAN1L Pin 2 CN1-31 Digital out put Wake up Pin 5 CN1-32 Digital input ON Pin 4 CN1-33 Ground CAN2 Pin 10 CN1-34 Ground CAN1 Pin 3 Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #7/66

8 Microprocessor Description Supply voltage The micro feed taken directly from - Road mode: by the main battery fuse 80 Amps - STDBY mode: by the inverter Minimum voltage Maximum voltage Micro consumption when unit is OFF by cab command Micro consumption when unit is OFF by ignition Micro external temperature range Internal temperature safety Consumption of the micro when it wakes up 10 Vdc 32 Vdc <5 ma <5 ma -40 C / +75 C (-40 F / +167 F) Stop if T > 85 C Restart if T < 65 C 1 A for 10 seconds Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #8/66

9 Microprocessor Unit Configurations Accessibility IMPORTANT If, when settings are adjusted, no key is activated within 10 seconds, the system reverts to displaying the box temperature. All changes made are not recorded. BAtt OR The «Unit Configuration» menu is accessible when the Cab Display is active and box temperature is displayed. 1. Push into the thin hole on the rear of the cab command to access the configuration menu 2. The first configuration BAtt is displayed for 3 seconds. 3. Battery voltage value is displayed. 4. Press + or key to select another value. The new value is flashing for 10 seconds. 5. Press the SET key to validate the new selected value or to go to the next parameter. Note: to exit this menu press ON key. Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #9/66

10 Microprocessor Unit Configurations Values Display for 3 seconds Description 1. BAtt Battery voltage of the unit 2. Cont Condenser Size 3. CEt Compartment Evaporator Type 4. HArn Compartment on the cab command display (Only for Mt ) NOT YET AVAILABLE 12V or 24V Available values for 10 seconds Lo = low size (Pulsor 350 / 400) or Hi = High size (Pulsor 500 / 600 Mt) For Mt unit, each compartment has to be adjusted 0000 = No Evaporator 605= MPS 600l 855 = MPL = MPL = MCS = MCL 850 U855 = MCV = MCL 1100 A = Evaporator 1 will be displayed on compartment 1 of the cab command (Factory setting A) B = Evaporator 1 will be displayed on compartment 2 of the cab command 5. CS Compartment Size 0 = Gradual pulldown 1 = Medium pulldown 2 = Fast pulldown 3 = Future development Factory setting by default : 1 Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #10/66

11 Microprocessor Set Unit Configurations Values Display for 3 seconds Description 6. EFS Evaporator Fan motor Speed (Not available for MCV 850 equipped with a fixed speed fan) The parameter does not appear. with Soft (since soft Spal EFM are implemented) Evaporator Type: SPd1 = low speed (70%) SPd2 = medium speed (85%) SPd3 = high speed (100%) Factory setting by default : SPd3 Available values for 10 seconds 7. GEn Generator Type GEn3 = Generator type if Gen4 is not suitable. GEn4 = Generator type for all Pulsor units (G4 by default) 8. SCAC Standby Consumption (inverter configuration) (only for single phase) The parameter does not appear in the case of unit in 400V/3 or 230V/3 Standby Consumption in 230/1/50&60hz according to the customer network. 16A =Compressor/heater power limited at 1300W for mono temperature, 1100W for multi temperature (in multi temperature more power is given to the EFM) 32A = Compressor/heater power limited at 2200W for both mono temperature and multi temperature Factory setting by default : 16A 9. disp Data Display of the unit C = Metric display : Temperature in C and pressure in Bars F = Imperial display : Temperature in F and pressure in PSI Factory setting by default : C Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #11/66

12 Microprocessor Set Unit Configurations Values Display for 3 seconds 10. SPd Set Point Display Description 11. USL Upper dead band for the regulation in perishable & frozen 12. LSL Lower dead band for the regulation in perishable (set point > -12 C, 10.4 F) 13. LSLF Lower dead band for the regulation in frozen (set point < -12 C, 10.4 F) Available values for 10 seconds Temperatures Displayed with integer or decimal Int : Box T & set point display with integer value i.e : -20 C dec : Box T & set point display with decimal value i.e : (Temperature & set point will be displayed alternatively with unit of measurement) Factory setting by default : Int C : From 1 to 3 with 0.5 step (Factory setting at 1 C) F : From 1.8 to 5.4 with 0.9 step (Factory setting at 1.8 F) C :From -1 to - 3 with -0.5 step (Factory setting at -1 C) F : From -1.8 to -5.4 with -0.9 step (Factory setting at -1.8 F) Available values displayed for 10 seconds: C : From -1 to -5 with -0.5 step (Factory setting at -2 C) F : From -1.8 to -9 with -0.9 step (Factory setting at -3.6 F) Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #12/66

13 Microprocessor Set Unit Configurations Values Display for 3 seconds Description 14. Hour Adjust actual hours (micro internal clock) Available values for 10 seconds Adjust the real time by pressing the + to increase hours and - key to decrease minutes. The format is hh:mm. A long press on + key increases the hours value of 10 A long press on - key decreases the minutes value of date Current date (micro internal clock) Adjust the real date by pressing the + to increase days and - key to decrease months. The format is dd:mm A long press on + key increases the days value of 10 A long press on - key decreases the months value of YEAr Current year (micro internal clock) Adjust the real year by pressing the + or - key (by default 2000) 17. door Door switch option YES : Door switch installed (NO, Contact closed/ Door Closed) NO : Door switch not installed (Factory setting) 18. dur Drain water resistor YES : Drain water resistor installed. (Factory setting for MT) NO : Drain water resistor not installed. (Factory setting for Monotemp) 19. SEr Maintenance hours meter NO : No maintenance message YES : Maintenance message activated every 1000 hours (Factory setting) rset : Reset the maintenance counter Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #13/66

14 Microprocessor Set Unit Configurations Values Display for 3 seconds Description Available values for 10 seconds 20. CAr Compressor alert NO: No Compressor maintenance message YES: Compressor Maintenance message activated after 500 hours running out of compressor envelope rst: Reset the Compressor maintenance counter. 21. Loch Lock hour meters Loch appears only after a micro replacement and allows the unit to run without entering all the hour meters. Hour meters must be filled in with the help of the service tool. YES: Hour meters are locked (Factory setting for spare parts only) NO : Hour meters are not locked. Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #14/66

15 Microprocessor Operation COOL mode Description The aim of the cool mode is to ensure the cool production thanks to the variable speed compressor, keeping the compressor running within its envelope. The envelope is defined by the pressure and temperature ranges in which the compressor must operate. COMPRESSOR ENVELOPE Up to 5 inputs can be used to control the cool mode: RAT normal mode CSP CDT CDP CDP/CSP ratio Before unit operates in cooling mode, pre-heating and starting sequences are initiated. Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #15/66

16 Microprocessor Operation COOL mode Pre-heating & CFM The pre-heating consists in activating alternatively each coil of the compressor motor in order to heat the compressor oil. The pre-heating is activated if the compressor is stopped for more than 1 hour AND if the CDT is lower than 20 C (CDT represents the outdoor air temperature if the compressor stopped for a significant time). CDT 400V/3 compressor 20 C to -5 C 3mn The pre-heating duration depends on the CDT and compressor -6 C to -15 C 6mn type (data for 230V/3 not yet available): During the pre heating, -16 C to -20 C 9mn command displays cpht. -21 C to -25 C 12mn A pre-heating timer (15 min) is activated when the pre-heat begins. If the pre-heat sequence is stopped: - If new start is required within those 15 min => pre-heat is activated for the remaining time, - If new start is required after those 15 min => the timer is reset and the pre-heating will last the whole needed time. Example: Compressor stopped 2h ago and CDT at 8 C. The driver starts the unit at 11H00 => Pre-heating sequence = 6 min - The driver stops the unit at 11H04. Then he starts it again 11 min after at 11H15. The pre-heating last 2 min more, then the starting sequence is launched. - The driver stops the unit at 11H04. Then he starts it again 16 min after at 11H20. The pre-heating is reset to 6 min if the CDT is still between -6 C to -15 C. - The driver stops the unit at 11H08. The pre-heating was done and the starting sequence began normally. Nota on CFM: CFM Run in cool mode (always) In other mode,cfm runs only if Inverter box >20 C is cab Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #16/66

17 Microprocessor Operation COOL mode Starting sequence Definition The aim of the starting sequence is to slowly start the unit to prevent a compressor failure because of refrigerant condensation in oil sump. The starting sequence will be engaged each time the compressor starts. There are 4 different starting sequences in cool mode depending on: - how long the compressor have not been running - the Compressor Discharge Temperature (CDT) 1. Short starting sequence, 2. Normal starting sequence, 3. Long starting sequence, 4. Liquid slugging starting sequence. Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #17/66

18 Microprocessor Operation COOL mode Starting sequence Logic Compressor Off time less than 30 mn Short starting sequence * Compressor Off time between 30 mn and 1 hour CDT < 20 C yes Long starting sequence no Normal starting sequence * CDT < 5 C Long starting sequence Compressor Off time > 1 hour CDT > 5 C and CDT < 40 C Normal starting sequence * CDT > 40 C Short starting sequence * * If unit has been in heat or defrost mode for at least 10 min with compressor stopped, liquid slugging starting sequence will be selected. Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #18/66

19 Microprocessor Operation COOL mode Starting sequence Short starting - Stop EFM ( if EFM is ON during regulation) - Start CFM (CFM is always activated in cool mode) - Open PEV - Start compressor at 30 Hz 2 seconds after: - Open LV - Start EFM 3 seconds after: - Close PEV - Ramp up compressor speed if needed (1Hz/s) Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #19/66

20 Microprocessor Operation COOL mode Starting sequence Normal starting - Stop EFM ( if EFM is ON during regulation) - Start CFM - Open PEV - Start compressor at 30 Hz 20 seconds after: - Open LV - Start EFM 20 seconds after: Close PEV 20 seconds after: Ramp up compressor speed if needed (1Hz/s) Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #20/66

21 Microprocessor Operation COOL mode Starting sequence Long starting - Stop EFM ( if EFM is ON during regulation) - Start CFM - Open PEV - Start compressor at 30 Hz 5 min after: - Open LV - Start EFM 2 min after: - Close PEV During 2min 30 sec.: Run the compressor at 30Hz. During 2min 30 sec.: Ramp up compressor 1Hz/5s limited to 60Hz. During 3min 30 sec.: Run the compressor at 60 Hz and after those 3min 30 sec, ramp up until 80Hz if needed. Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #21/66

22 Microprocessor Operation COOL mode Starting sequence Liquid slugging starting If unit has been in heat or defrost mode for at least 10 min with compressor stopped, the liquid slugging starting sequence has the priority on the short and normal starting sequences. - Stop EFM ( if EFM is ON during regulation) - Start CFM - Open PEV - Start compressor at 30 Hz 40 seconds after: - Open LV - Start EFM 40 seconds after: - Close PEV During 3min: Run the compressor at 30Hz - Ramp up compressor speed (1Hz/s) if needed Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #22/66

23 Microprocessor Operation COOL mode Control modes Compressor speed variation is controlled by 5 modes monitored at any time by the micro: - 1 normal mode controlled by RAT, - 4 limitation modes controlled by CDT, CDP, CSP and CDP/CSP ratio Normal mode CDT limitation mode CDP limitation mode CSP limitation mode By default compressor speed regulation is controlled by RAT CDT limitation mode is the most severe => it has the priority on CDP, CSP and CDP/CSP limitation modes, - If CDT reaches an abnormal temperature= CDT shutdown, CDT limitation mode is activated to go back inside the compressor envelope. - To allow a higher discharge temperature during the pull down, two CDT shutdown values are used and a pull down timer is applied. It is incremented each minute if CDT exceeds 105 C and is reset daily at 0h00. If this timer is less than 90 minutes, CDT shutdown is 115 C, otherwise it is 106,5 C. - If CDT reaches CDT shutdown value despite CDT limitation mode =>A051 is displayed. - If CDP reaches an abnormal high pressure=cdp shutdown, CDP limitation mode is activated to go back inside the compressor envelope. - CDP shutdown is represented by the upper red line on the compressor envelope: it depends of the CSP value. - If CDP reaches CDP high shutdown value despite CDP limitation mode =>A052 is displayed. - If CSP reaches an abnormal pressure, CSP limitation mode is activated to go back inside the compressor envelope. Despite CSP limitation activation, 3 shutdown limits could be triggered: CSP reaches CSP Low shutdown (0,06 bar) for 30 seconds =>A053 is displayed and unit shuts down. CSP reaches CSP Safety shutdown (-0,4 bar) => A054 is displayed and unit shuts down. CSP reaches CSP High shutdown (6.2bar) => A055 is displayed (alarm inhibited for 5 minutes after starting sequence is completed). Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #23/66

24 Microprocessor Operation COOL mode Control modes RATIO CDP/CSP limitation mode - If CDP reaches an abnormal low pressure, Ratio CDP/CSP limitation mode is activated to go back inside the compressor envelope. - CDP shutdown is represented by the lower red line on the compressor envelope: it depends of the CSP value. - If CDP reaches CDP low shutdown value =>A056 is displayed. Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #24/66

25 Microprocessor Operation COOL mode Overrides Compressor minimum on-time Compressor starting sequences Compressor envelope limitation Hz Compressor limitation Hz Overrides in COOL mode If compressor is requested to stop (regulation) and its running time is < 2 minutes: Compressor continues to run until those 2 minutes are elapsed EFM speed is reduced to 25% to reduce the cooling power for EBM EFM. SPAL EFM are shut off. (Nota: this override is not applied in case of OFF request from the cab command/service tool) In case of PEV failure during starting sequence: Compressor frequency is limited at 30Hz for 15 minutes In case of PEV failure during stopping sequence: PEV is opened one additional minute after A060 (pressure equalization failure) appears. This alarm is reset when pressure equalizes naturally. At next starting sequence, compressor frequency is limited to 30Hz during 15 minutes. If CDP is in Hz zone: compressor speed is limited to 70 Hz If CSP<0,6 bar (8.7 PSI): compressor speed is limited to 60 Hz Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #25/66

26 Microprocessor Operation COOL mode Overrides Low temperature in other compartment Door management Post defrost For Mt unit: -if one compartment is in HEAT mode and the other in cool mode - if compressor within its minimum On-Time (2min) - and if the compartment in COOL mode has its set point 0 and its RAT<0 : maximum compressor speed is limited to 40 Hz If unit equipped with door switch option and door is opened: compartment is switched to NULL mode, EFM is forced to stop even if EFM is set to ON during regulation Compressor is stopped (mono-temp) even if compressor minimum on-time unexpired. Liquid valve of the opened compartment is closed. LV is closed (multi-temp) Door is displayed alternatively with RAT on the cab command It is not necessary to press ON when door is closed again After a defrost EFM start is 60 seconds delayed in fresh and 180 seconds in frozen to avoid water projection Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #26/66

27 Microprocessor Operation COOL mode Cool priority The cool priority function enables the microprocessor to manage cooling automatically for Multi Temp units. 3 configurations are available for cooling priority management: Auto : The priority is given to the compartment with the lowest set point 1 : The priority is given to compartment 1 2 : The priority is given to compartment 2 Auto priority cooling Auto priority cooling is controlled by the Liquid Valve (LV) regarding several conditions : Compartment with the lowest set point = Priority ; other compartment = Not priority. Priority compartment liquid valve is always fully opened, Not priority compartment liquid valve is fully opened until Setpoint + USL then it is pulsing between 17% to 100% (fully opened) (5s opened/ 25s closed). If the 2 compartments have a similar set point (+/- 2 C), the smallest evaporator is the Priority. If evaporators are the same there is no pulsing (LV 100% opened). If one compartment is in cool mode and the other in heat mode, the priority is given to the cool mode. Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #27/66

28 Microprocessor Operation COOL mode Cool priority Compartment 1 or 2 priority cooling 1 or 2 priority cooling is controlled by the Liquid Valve (LV) regarding several conditions : The selected compartment is the Priority, other compartment is the Not Priority, Priority compartment liquid valve is always fully opened, Not Priority compartment liquid valve starts pulsing at 17% until the priority compartment reaches its setpoint+usl/2 value, Not Priority compartment liquid valve is pulsing from 17% to 100% (fully opened) (5s opened/ 25s closed) when the priority compartment RAT is between setpoint+usl/2 and setpoint-lsl/2. Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #28/66

29 Microprocessor Operation COOL mode Mode change Following modes are accessible from cool mode (Mode change). if RAT Set point + LSL/2 NULL mode Defrost mode if door is opened in case of standby power supply loss in case of alarm if a defrost is requested If one of these modes is requested, the stopping sequence is launched. Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #29/66

30 Microprocessor Operation COOL mode Stopping sequence COOL mode Reduce compressor speed to 30Hz for 1 second Stop compressor Stop EFM Open PEV until delta pressure (HP-LP) decreases to less than 2 bar with a 20 second timeout Close LV and PEV Run EFM if set EFM running in NULL mode Stop CFM NOTA : if door is opened, EFM is stopped and is not allowed to run until door closing Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #30/66

31 Microprocessor Operation HEAT mode Description Description - The heating is ensured by high voltage DC electrical heaters - Heat mode is active only on Perishable Mode ( set point > -12 C) - Electrical power is reduced when RAT is closed to the set point. Following modes are accessible from heat mode (Mode change) - Active mode : in case of double supply detection - NULL mode : if set point is reached, or in case of failure/alarm Priority in multi-temp application - If both compartments are in heat mode, a coefficient is applied to share the heating power proportionally. - The total heater power will never exceed 3000W (even with a generator 4). The calculation is done as follow: Coef = P1 / (P1+P2) where P1 and P2 are the nominal heater power of each evaporator Calculated power delivered to compartment 1 = 3000 * Coef Watts Calculated power delivered to compartment 2 = (3000*Coef) Watts Example of calculation with Cpt 1 equipped with evaporator MCL1100 (max heater power=3000w) and Cpt 2 with MCL 850 (max heater power=2100w): Coef= 3000 / ( ) = 0.59 The Cpt1 will receive 3000 * 0.59 = 1764 Watts, Cpt2 will receive = 1236 Watts - If one compartment is in cool mode and the other in heat mode, the priority is given to the cool mode. Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #31/66

32 Microprocessor Operation HEAT mode Starting/Stopping sequences STARTING SEQUENCE The inverter energizes each component with a delay of ONE SECOND to prevent voltage drop. CFM is off during heat mode except if inverter cooling is requested. EFM energized STOPPING SEQUENCE Heater stops If EFM configured to stop in NULL mode, start Post-ventilation (30 ). Heater starts If HEAT mode has run more than 10 minutes and compressor was stopped more than 10 minutes, then force the liquid slugging cool starting sequence at next compressor start Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #32/66

33 Microprocessor Operation HEAT mode Overrides Overrides in HEAT mode Door management If unit equipped with door switch option and door is opened: compartment is switched to NULL mode, EFM is forced to stop even if EFM is set to ON during regulation Heating capacity is stopped (mono-temp) Door is displayed alternatively with RAT on the cab command It is not necessary to press ON when door is closed again, the unit will restart Transparent defrost If heat mode is activated after a cool mode and the 4 following conditions are met, a transparent defrost is activated in order to avoid water projections: - DTT < 2 C - RAT < 3 C - Set point has been changed and is 0 - Cool mode runtime was > 20 minutes Heating power with air flow reduced to 25% of the maximum power (only for EBM fans) is activated (to avoid water projection). With Spal evaporators, this override does not exist anymore. NOTA: - This override is ignored if evaporator type is MCV850 because airflow design does not cause water projection. Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #33/66

34 Microprocessor Operation NULL mode Definition Description: - In NULL mode, the compressor and the CFM are stopped (CFM can be started if inverter needs to be cooled), - By default EFM is set to OFF during NULL mode. If continuous airflow is needed, it can be turned to ON in user functions. At power ON, NULL mode is activated for at least 30 seconds in road mode. Following modes are accessible from NULL mode (Mode change): - Active mode if compartment is manually switched off or in case of power supply loss, - Cool mode if RAT is too high, - Heat mode if RAT is too low (perishable transport only) - Defrost mode if manual defrost is requested or if defrost conditions are met. Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #34/66

35 Microprocessor Operation NULL mode Regulation closed to set point HEAT NULL COOL (1) If coming from COOL mode (2) If coming from HEAT mode (3) If compressor min on-time override has been activated LSL. Delay Delay For frozen set point, there is no heat mode and LSLF is used instead of Two ways to enter in COOL mode: 1. If previous mode was COOL and if RAT > Set point + USL/2 => Compartment enters in COOL mode. 2. If previous mode was HEAT mode and if HEAT mode is finished since more than 6 minutes (=delay) and if RAT > Set point + USL => Compartment enters in COOL mode. Two ways to enter in HEAT mode: 1. If previous mode was HEAT mode and if RAT < Set point + LSL/2 => Compartment enters in HEAT mode. 2. If previous mode was COOL mode and if COOL mode is finished since more than 6 minutes and if RAT < Set point + LSL => Compartment enters in HEAT mode. These 6 minutes delays are not applied in case of setpoint change. Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #35/66

36 Microprocessor Operation NULL mode Overrides High temp security Post-ventilation Equalization Overrides in NULL mode If Box over-heating alarm is active (A156/A256): Run EFM at maximum speed in order to avoid high temperature in the evaporator If unit previously connected to power network and disconnected : road/standby relay (inside inverter) automatically switches into road mode (vehicle battery) to ensure the post-ventilation NOTA: - Unit goes in OFF after post-ventilation. If EFM is configured to stop in NULL mode: To avoid heat accumulation inside the evaporator, after heating sequence completion, run EFM at maximum speed for 30 seconds if the heater has run more than 2 minutes, otherwise for 15 seconds. If unit previously connected to power network, the road/standby relay automatically switches into road mode (vehicle battery) to ensure the post-ventilation. NOTA: - Unit goes in OFF after post-ventilation, - This override is inhibited in case of EFM wrong speed failure (A165/A265). If PEV Equalization failure alarm is active: Re-open the PEV for 1 minute If unit previously connected to power network, the road/standby relay automatically switches into road mode (vehicle battery) to ensure the equalization. NOTA: while this override is active, switching unit to OFF is not allowed. Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #36/66

37 Microprocessor Operation NULL mode Overrides Door management If unit equipped with door switch option and door is opened: EFM is stopped Compartment is not allowed to switch neither in COOL mode nor in HEAT mode It is not necessary to press ON when door is closed again, the unit will restart Air sampling If EFM is configured to stop in NULL mode: EBM fans: EFM is forced at 70% for 1 minute every 5 minutes: the aim is to mix the air to get a right box temperature information Spal fans: EFM is forced at 100% for 1 minute every 5 minutes: the aim is to mix the air to get a right box temperature information Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #37/66

38 Microprocessor Operation DEFROST Description The Defrost mode is ensured by means of high voltage DC electrical heaters. The maximum allowed power is used to energize the heaters. There are 3 different possibilities to request a Defrost: - Manual: Selected from the cab command or the service tool. - Scheduled: Timed-scheduled configuration through the cab command. Every X hours, the compartment will go into Defrost. - Automatic: The control calculates the next defrost session according to the energy consumed during the previous defrost. A Defrost sequence can be activated if all following conditions are met: - Defrost is requested (Automatic, scheduled or manual) - DTT < 5 C ( 41 F) - No other compartments already in defrost - Compartment in COOL mode for scheduled, automatic and manual requests - Compartment in NULL or HEAT mode for a manual request - Door closed (if option activated) Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #38/66

39 Microprocessor Operation DEFROST Description When running in defrost, compartment can only switch to null mode: - If compartment is manually switched off or in case of power supply loss, - If defrost is completed, - If defrost duration is too long, - In case of alarm. Following modes are accessible when DEFROST sequence is completed: - COOL mode if previous mode was cool and if there is a cool demand - HEAT mode if previous mode was heat and if there is a heat demand - HEAT mode if RAT is too low - Otherwise, NULL mode - DEFROST mode if manual defrost is requested or if defrost conditions are met. Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #39/66

40 Microprocessor Operation DEFROST Operation During the Defrost: The RAT is hidden from the cab command, and dfst is displayed and after the defrost completion: during 2 minutes for fresh and during 4 minutes for frozen. The green led keeps running as usual. The Out of Range alarms (A150/A250) are inhibited. In multi temp, when a compartment is in defrost mode (scheduled or auto request), the other compartment (heat or cool mode) gets the rest of the available power. Restart of cool mode is not allowed during the defrost of the other compartment. When DTT reached a 3 C threshold, the heating power is reduced by 50%. Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #40/66

41 Microprocessor Operation DEFROST Defrost logic Manual defrost Manual Defrost starting: The manual defrost is activated from the cab command or from the service tool regardless of the defrost configuration parameter. On Multi-temp units, if the defrost is requested on all active compartments at the same time, it will occur sequentially, without 20 minutes delay between each defrost. On Multi-temp units, the priority is given to the compartment with the highest set point. Starting sequence: - EFM stops - Heater starts Defrost ending: Normal completion - The defrost session is completed when DTT reaches 12 C. - The EFM restarts after a delay of 1 minute for fresh and 3 minutes for frozen (setpoint<-12 C) to avoid water projection and heat diffusion in the box. The display of the RAT on the cab command is done 1 minute after this delay. Abnormal termination: - If the defrost session lasts more than 30 minutes, it will be stopped and the defrost failure alert (A155/ A255) is issued. It will be possible to request a manual defrost. - Heat mode is not allowed - The alert is cleared at next defrost session start. Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #41/66

42 Microprocessor Operation DEFROST Defrost logic Automatic defrost Automatic Defrost starting: To select the automatic defrost, the defrost configuration parameter has to be set to auto (adjustable for each compartment). At unit start or if configuration changed to auto, the first automatic defrost will occur after 30 minutes cumulated of COOL mode. The delay between 2 defrost sessions is determined based on the energy consumed during the previous defrost session. This time delay is expressed in time of COOL mode only. On Multi-temp units, defrost is independent on each compartment and request can occur at the same time. If defrost request occurs at the same time, the priority is given to the compartment with the highest set point, the maximum power allowed will be given to this compartment. However, the other compartment gets the rest of the available power (heat or cool mode, not defrost). Restart of cool mode is not allowed during the defrost of the other compartment. At the end of the first compartment defrost, the 2 compartments run in cool or heat mode during 20 minutes. Then, the second compartment starts in defrost. Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #42/66

43 Microprocessor Operation DEFROST Defrost logic Automatic defrost Defrost Termination: Normal completion - The defrost session is completed when DTT reaches 12 C. - The EFM restarts after a delay of 1 minute for fresh and 3 minutes for frozen (setpoint<-12 C) to avoid water projection and heat diffusion in the box. The display of the RAT on the cab command is done 1 minute after this delay. Abnormal termination - If the defrost session lasts more than 30 minutes, it will be stopped and the defrost failure alert (A155/ A255) is issued. It will be possible to request a manual defrost. - During these alerts, manual defrost is allowed if conditions are met. - Heat mode is not allowed - The alert is cleared at next defrost session start. - The next defrost session is planned 30 minutes later. Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #43/66

44 Microprocessor Operation DEFROST Defrost logic Scheduled defrost Scheduled Defrost starting: The delay between two defrost sessions is configured from the cab command or from the service tool. It can take values from 0.5 to 3 hours with 0.5 hour step (cool mode time). On Multi-temp units, defrost is independent on each compartment and can occur at the same time. If defrost request occurs at the same time, the priority is given to the compartment with the highest set point. The maximum power allowed will be given to this compartment. However, the other compartment gets the rest of the available power (heat or cool mode, not defrost). Restart of cool mode is not allowed during the defrost of the other compartment At the end of the first compartment defrost, the 2 compartments run in cool or heat mode during 20 minutes. Then, the second compartment starts in defrost. Defrost Termination: Normal completion - The defrost session is completed when DTT reaches 12 C. - The EFM restarts after a delay of 1 minute for fresh and 3 minutes for frozen (set point<-12 C) to avoid water projection and heat diffusion in the box. The display of the RAT on the cab command is done 1 minute after this delay. Abnormal termination: - If the defrost session lasts more than 30 minutes, it will be stopped and the defrost failure alert (A155/ A255) is issued. It will be possible to request a manual defrost. - During these alerts, manual defrost is allowed if conditions are met. - Heat mode is not allowed - The alert is cleared at next defrost session start. Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #44/66

45 Microprocessor Operation Defrost logic Stopping sequence Stopping Sequence: - Stop Heater - If the compressor was stopped for more than 10 minutes, next COOL mode will start using liquid slugging starting sequence. Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #45/66

46 Microprocessor Data & security ACTIVE malfunctions AXXX: An alarm is active when a problem occurs on the unit. Up to 10 actives alarm can be stored but not memorized in case of battery voltage loss. - The red LED is FLASHING: the unit is running in degrading mode. With Alarm code on the display alternatively with box T (Alarm displayed 2s, box temperature 8s) Without Alarm code, availability in the alarm menu. - The red LED is STEADY ON: the unit is not running. Alarm code will be displayed alternatively with the box temperature (alarm displayed 8s, box temperature 2s). PASSIVE malfunctions PXXX: An active alarm becomes passive when the problem disappears. Up to 15 alarms can be stored and kept in case of battery voltage loss. - The red LED is not active. Alarm types - The passive alarms stay in memory until the technician clears them. ALARM RESET: only passive alarms can be reset by pressing simultaneously and keys on the cab command while passive alarm is displayed or thanks to a click on Reset alarm button on service tool. INFORMATION only : AXXX is displayed alternatively with the box temperature without red LED (alarm displayed 2s every 8s) ALARM family - A0XX : components of the condenser alarms - A1XX : Evaporator 1 components alarms ; A2XX : Evaporator 2 components alarms - A5XX : generator alarms - A6XX : inverter alarms Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #46/66

47 Microprocessor Data & security Alarms list Condenser ALARM CODE DESCRIPTION Trigger ON condition Trigger OFF condition Cab Display Control operation A000 No malfunction Unit is operational. A001 Compressor Suction Pressure transducer failure CSP out of range for 1 sec after at least 30 sec of compressor running On/Off Reset If Cool demand: A001, LED steady Otherwise A001, LED flashing Do not allow Cool mode (< -1 or > 13.8 bar) A002 Compressor Discharge Pressure transducer failure CDP out of range for 1 sec (<0 or > 35 bar) Automatic reset when CDP is within the correct range for 5 sec. If Cool demand: A002, LED steady Otherwise A002, LED flashing Do not allow Cool mode A003 Compressor Discharge Temperature transducer failure CDT out of range for 1 sec (< -40 C or > +135 C) (<-40 F or > +275 F) Automatic reset when CDT is within the correct range for 5 sec. If Cool demand: A003, LED steady Otherwise A003, LED flashing Do not allow Cool mode A004 Air Ambient Temperature thermistor failure AAT out of range for 5 sec. Automatic reset when AAT is within the correct range for 5 sec. A004 alternately with RAT, LED OFF. Information only A005 / A009 Not used A010 Pressure Equalization Valve Harness failure Open circuit detection for 1 sec Automatic when failure condition disappears for 10 sec. If Cool demand: A010, LED steady Otherwise A010, LED flashing Cool mode allowed. If restarted compressor limited at 30Hz for 15 min. A011 / A014 Not used A015 Pressure Equalization Valve solenoid failure Over current Automatic when failure condition disappears for 20 sec. Becomes manual reset if more than 3 occurrences within a 1 hour period If Cool demand: A015, LED steady Otherwise A015, LED flashing Switch OFF and disable PEV Cool mode allowed. If restarted compressor limited at 30Hz for 15 min. A016 Cab command cable failure Over current Automatic when failure condition disappears for 10 sec. N.A. Switch OFF cab display Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #47/66

48 Microprocessor Data & security Alarms list Condenser ALARM CODE DESCRIPTION Trigger ON condition Trigger OFF condition Cab Display Control operation A017 Wake up signal failure Micro intends to wake-up the inverter but no signal read back from inverter for 1 sec Automatic when failure condition disappears for 10 sec. N.A. Stop all operations A018 Microprocessor temperature failure Micro Temperature > 85 C for 30 sec. Automatic when micro temperature < 65 C for 10 sec A018 alternately with RAT, LED steady Force NULL mode without EFM (except for post ventilation) A019 Inverter / Compressor failure Compressor requested to OFF and its consumption is not NULL for 30 sec. Manual reset A019, LED steady Stop all operations A020 Inverter communication failure Inverter does not respond for 5 sec. Automatic when failure condition disappears for 5 sec. A020, LED steady Force all compartments to active mode to display alarms A021 Cab command communication failure No status received from cab display for 5 sec. Automatic when failure condition disappears for 5 sec. N.A. Information only, unit still running (but impossible to display it) A025 Logic board power relay failure Power relay is energized, power voltage supply voltage is present BUT power output is not detected Manual reset A025, LED steady Stop all operations A023 / A029 Not used A030 Battery voltage failure Bad battery voltage detected on the micro for 30 sec. 12V unit: UBatt < 10.5V or >16V 24V unit: Ubatt < 21V or >32V On/Off Reset If road mode: A030, LED steady Otherwise A030, LED flashing Stop all operations, Switch OFF Battery relay Switch to sleep mode after 1 min. A031 Auxiliary DC voltage failure Bad auxiliary DC voltage detected for 30 sec. 12V unit: UDCaux < 10V or Ubatt > 16.0V 24V unit : UDCaux < 20V or Ubatt >32V On/Off Reset If Standby mode : A031, LED steady Otherwise A031, LED flashing Standby mode not allowed. Stop all operations. Switch OFF standby relay Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #48/66

49 Microprocessor Data & security Alarms list Condenser ALARM CODE DESCRIPTION Trigger ON condition Trigger OFF condition Cab Display Control operation A032 / A034 Not used A035 Dual supply failure Ignition key signal and AC Main presence detected simultaneously for 1 sec. Automatic when failure condition disappears for 10 sec. A035, LED steady Force all compartments to active mode to display alarms A036 / A039 Not used A040 Runtimes not valid Hour meters not filled in Standby, Road, Compressor Hour meters Automatic when failure condition disappears A040, LED steady Force all compartments to active mode to display alarms A041 Configuration mismatch: No Evaporator selected on compartment 1 Bulkhead fan selected for compartment 2 MCS600, MPS600 or MPV850 evaporator type in a mono-temp application (or 3 a bi-temp application with Bulkhead Fan). Mono-temp with high size condenser and MCL850 or MCV850 evaporator 4 High size condenser with two MCS600 or MCS600S evaporators 5 MCL1100 or MCL1100S evaporator on compartment #2 6 Two MCL1100 or MCL1100S evaporators in a bi-temp application 7 12V Inverter with 24V configured on Logic Board OR 24V Inverter with 12V configured on Logic Board. 11 Heater mismatch 12 Inverter software version incompatible with Logic Board software version 13 Wrong configuration Automatic when failure condition disappears A041, LED steady Force all compartments to active mode to display alarms A042 Wrong cab command display Monotemp temp Cab display version < 190 or Monotemp cab display on a multitemp unit. Automatic when failure condition disappears A042, LED steady Force all compartments to active mode to display alarms A043 Logic board: Eprom failure A043, LED steady Automatic when failure condition disappears. Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #49/66

50 Microprocessor Data & security Alarms list Condenser ALARM CODE DESCRIPTION Trigger ON condition Trigger OFF condition Cab Display Control operation A049 Not used A050 Compressor failure Cool mode started for 30sec, and CDP-CSP < 1bar Automatic when failure condition disappears for 30 sec Becomes manual reset if more than 5 occurrences within a 2 hours periods If Cool demand: A050, LED steady Otherwise A050, LED flashing Do not allow Cool mode A051 Compressor Discharge Temperature failure CDT> CDT shutdown value (CDT shutdown value= 106,5 C or 115 C regarding operation conditions) Automatic when failure condition disappears for 30 sec. Becomes On/Off reset if more than 5 occurrences within a 2 hours periods If Cool demand: A051, LED steady Otherwise A051, LED flashing Do not allow Cool mode A052 Compressor Discharge Pressure failure CDP> CDP shutdown value (See compressor envelope for CDP shutdown value) Automatic when failure condition disappears for 30 sec. Becomes On/Off reset if more than 5 occurrences within a 2 hours periods If Cool demand: A052, LED steady Otherwise A052, LED flashing Do not allow Cool mode A053 Compressor Suction Pressure failure CSP < CSP shutdown value (0.06b / 0.87 PSI) Automatic when failure condition disappears for 30 sec. Becomes On/Off reset if more than 5 occurrences within a 2 hours periods If Cool demand: A053, LED steady Otherwise A053, LED flashing Do not allow Cool mode A054 Low Compressor Suction Pressure failure CSP < CSP Recovery shutdown value (-0.4b / -5.8 PSI) Automatic when failure condition disappears for 30 sec. Becomes On/Off reset if more than 5 occurrences within a 2 hours periods If Cool demand: A054, LED steady Otherwise A054, LED flashing Do not allow Cool mode Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #50/66

51 Microprocessor Data & security Alarms list Condenser ALARM CODE DESCRIPTION Trigger ON condition Trigger OFF condition Cab Display Control operation A055 High Compressor Suction Pressure failure CSP> CSP high Shutdown value and compressor running for at least 5 minutes. (6.2b / 90 PSI) Automatic when failure condition disappears for 30 sec. Becomes On/Off reset if more than 5 occurrences within a 2 hours periods If Cool demand: A055, LED steady Otherwise A055, LED flashing Do not allow Cool mode A056 Low Compressor Discharge Pressure failure CDP< CDP low shutdown value and compressor running for at least 5 minutes. (See compressor envelope for CDP low shutdown value ) Automatic when failure condition disappears for 30 sec. Becomes OFF reset if more than 5 occurrences within a 2 hours periods If Cool demand: A056, LED steady Otherwise A056, LED flashing Do not allow Cool mode A057 / A059 Not used A060 Pressure equalization failure Compressor stopped and PEV opened for 20s and CDP-CSP > 2 bars Automatic when CDP and CSP pressures are balanced ( 1 bar delta P for 10 seconds). Becomes On/Off reset if more than 5 occurrences within a 2 hours periods If Cool demand: A060, LED steady Otherwise A060, LED flashing Do not allow Cool mode A061 Compressor low consumption If PEV closed and not in starting sequence, Current consumption too low according to the frequency On/Off reset If Cool demand: A061, LED steady Otherwise A061, LED flashing Do not allow Cool mode A062 Not used A063 Lack of compressor power Compressor stopped due to lack of power (Single phase 16 A network) Automatic after 30 sec. If Cool demand: A063, LED steady Otherwise A063, LED flashing Do not allow Cool mode A064 / A069 Not used Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #51/66

52 Microprocessor Data & security Alarms list Condenser ALARM CODE DESCRIPTION Trigger ON condition Trigger OFF condition Cab Display Control operation A070 Compressor failure Short circuit detection Over current phase to phase or phase to ground On/Off reset If Cool demand: A070, LED steady Otherwise A070, LED flashing Do not allow Cool mode A071 Compressor failure Overload detection Frequency under 30Hz for at least 10 sec Automatic If Cool demand: A071, LED steady Otherwise A071, LED flashing Do not allow Cool mode A072 Compressor : I2t protection Startup peak of current protection On/Off reset If Cool demand: A072, LED steady Otherwise A072, LED flashing Do not allow Cool mode A073 / A079 Not used A080 Condenser Fan Motor failure Short circuit detection Automatic when failure condition disappears. Becomes OFF reset if more than 10 occurrences within a 1 hour period. If not unit failed, A080 alternately with RAT, LED flashing. Otherwise, A080 alternately with RAT, LED steady. Stop CFM, continue current operation if Inverter box T < 90 C Otherwise, stop all operations. A081 Condenser Fan Motor failure Overload detection due to locked rotor On/Off reset If not unit failed, A081 alternately with RAT, LED flashing. Otherwise, A081 alternately with RAT, LED steady. Stop CFM, continue current operation if Inverter box T < 90 C Otherwise, stop all operations. A082 A083 / A089 A090 A091 Condenser Fan Motor open load Not used General maintenance message Compressor maintenance message Open circuit detection On/Off reset A082 alternately with RAT, LED steady. Road + Standby hours >1000Hrs (without NULL mode) The compressor runs out of his envelope for 500Hrs Stop all operations Reset from Service tool SEr alternately with RAT, LED OFF Information only Reset from Service tool SErC alternately with RAT, LED OFF Information only Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #52/66

53 Microprocessor Data & security Alarms list Compartment 1 & 2 ALARM CODE DESCRIPTION Trigger ON condition Trigger OFF condition Cab Display Control operation A100 / A200 Return Air Temperature failure Out of the range Automatic reset when RAT is within the correct range for 5 sec. A100 / A200 alternately with DTT 1/2, LED flashing. Use DTT sensor if valid A101 / A201 Defrost Termination Thermostat failure Out of the range Automatic reset when DTT is within the correct range for 5 sec. If Defrost or heat mode, A101/A201 alternately with RAT 1/2, LED steady Otherwise A101/A201, LED flashing Do not allow Cpt# to defrost and heat mode A102 / A109 A202 / A209 Not used A110 / A210 Liquid Valve harness failure Open circuit detection Automatic when failure condition disappears for 10 sec. If Cool mode, A110/A210, LED steady. Otherwise A110/A210, LED flashing Do not allow Cpt# Cool mode A111 / A211 Drain Water Resistor harness failure Open circuit detection Automatic when failure condition disappears for 10 sec. A111 / A211 alternately with RAT1/2, LED OFF. Information only A112 / A212 Evaporator Fan Motor open load Open circuit detection Automatic when failure condition disappears for 10 sec. A112/A212, LED steady. Force Cpt# to NULL mode without fan A114 / A214 Not used A115 / A215 Liquid Valve Solenoid failure Over current Automatic when failure condition disappears for 20 sec. Becomes On/Off reset if more than 3 occurrences within a 1 hours periods If Cool mode, A115/A215, LED steady. Otherwise A115/A215, LED flashing Switch OFF LSV, Do not allow Cpt# Cool mode. A116 / A216 Drain Water Resistor failure Over current Automatic when failure condition disappears for 20 sec. Becomes On/Off reset if more than 3 occurrences within a 1 hour period LED flashing Switch off and disable DWR# Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #53/66

54 Microprocessor Data & security Alarms list Compartment 1 & 2 ALARM CODE DESCRIPTION Trigger ON condition Trigger OFF condition Cab Display Control operation A117 / A217 Evaporator Fan Motor failure Over current Automatic when failure condition disappears for 20 sec. Becomes On/Off reset if more than 3 occurrences within a 1 hour period If another fan is available and Cool mode, A117/A217 LED flashing. Otherwise A117/A217, LED steady. Switch OFF and disable failed fan. Allow Cool mode if another fan available, if not force Cpt# to NULL mode without fan A119 / A139 A219 / A239 Not used A140 / A240 Set Point setting mismatch Set point out of the range Automatic when failure condition disappears for 10 sec. A140 / A240 alternately with RAT1/2, LED OFF. Information only A141 / A149 A241 / A249 Not used A150 / A250 Box temperature out of range (high) If Dead band reached once and RAT > set point + USL+ 5 C Automatic after 5 sec. when failure condition disappears HIT alternately with RAT1/2, LED OFF. Information only A151 / A251 Box temperature out of range (low) If Dead band reached once, Set point > -12 C and RAT < set point + USL- 5 C Automatic after 5 sec. when failure condition disappears LOT alternately with RAT1/2, LED OFF. Information only A152 / A154 A252 / A254 Not used Defrost duration > 30 mn Automatic at next defrost session activation LED flashing Stop current defrost session. A155 / A255 Defrost too long In automatic defrost mode, new defrost session scheduled after 30 min. Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #54/66

55 Microprocessor Data & security Alarms list Compartment 1 & 2 ALARM CODE DESCRIPTION Trigger ON condition Trigger OFF condition Cab Display Control operation A156 / A256 A157 / A164 A257 / A264 A165 / A265 A166 / A169 A266 / A269 Compartment overheating Not used Evaporator Fan Motor failure Not used DTT or RAT > 55 C, Unit off A156/A256 alternately with RAT1/2, LED steady. No speed or wrong RPM signal (50% difference between command and returned signal) Alarm Inhibited for 30sec. after each speed change. On/Off reset If another fan available and Cool mode: A165/A265, LED flashing. Otherwise A165/A265, LED steady Stop all operations. Force EFM to maximum speed. Unit switch OFF not allowed in stby mode. Switch OFF and disable failed fan. If another fan available, Allow Cool mode, otherwise force Cpt# to NULL mode without fan. A170 / A270 Heater protection (klixon) Over temperature ( >45 C) On/Off reset A170/A270, LED steady. Stop heat or defrost. A171 / A271 Heater failure Short circuit detection Over current phase to phase or phase to ground Manual reset A171/A271, LED steady. Stop all operations A172 / A272 Heater failure Low resistor Manual reset A172/A272, LED steady. Stop heat or defrost. A173 / A273 Heater failure High resistor or open circuit Manual reset A173/A273, LED steady. Stop heat or defrost. A174 / A199 A274 / A299 Not used Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #55/66

56 Microprocessor Data & security Alarms list Generator ALARM CODE DESCRIPTION Trigger ON condition Trigger OFF condition Cab Display Control operation A500 Generator short circuit Short circuit detection Over current phase to phase or phase to ground Manual reset If road mode, A500 LED steady. Otherwise A500, LED Flashing. Stop road mode operation A501 Generator over current failure Over current Automatic Inverter shall be reset at power source change If road mode, A501 LED steady. Otherwise A501, LED Flashing. Stop road mode operation A502 Generator over current failure Over current due to phase lost Manual reset If road mode, A502 LED steady. Otherwise A502, LED Flashing. Stop road mode operation A503 Generator over current failure Short circuit detection Over current phase to ground Manual reset If road mode, A503 LED steady. Otherwise A503, LED Flashing. Stop road mode operation A505 Generator encoder fault On/Off reset if more than 15 occurrences within 1 hour period. If road mode, A504 LED steady. Otherwise A504, LED Flashing. Stop road mode operation A506 Generator over speed Generator speed>12000 rpm Generator speed<9000 rpm during more than 15 seconds If generator speed>9000rpm during more than 5 minutes: - rpm- in alternance with 3000 for single temp Stop road mode operation - rpm- and 3000 for multi-temp A507 / A509 Not used A510 Generator temperature safety Generator over temperature Automatic after 10 sec. when failure condition disappears If road mode, A510 LED steady. Otherwise A510, LED Flashing. Stop road mode operation A511 Generator encoder over temperature Encoder over heating Automatic after 10 sec. when failure condition disappears If road mode, A511 LED steady. Otherwise A511, LED Flashing. Stop road mode operation A512 / A519 Not used Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #56/66

57 Microprocessor Data & security Alarms list Generator ALARM CODE DESCRIPTION Trigger ON condition Trigger OFF condition Cab Display Control operation A520 Generator sensor fault Generator thermal sensor fault Manual reset If road mode, A520 LED steady. Otherwise A520, LED Flashing. Stop road mode operation A521 Encoder sensor fault Encoder temperature sensor fault Manual reset If road mode, A521 LED steady. Otherwise A521, LED Flashing. Stop road mode operation A530 Generator low speed Compressor requested to start AND compressor not started AND generator speed<2200 Automatic If road mode, rpm Stop cooling operation A522 / A599 Not used Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #57/66

58 Microprocessor Data & security Alarms list Inverter ALARM CODE DESCRIPTION Trigger ON condition Trigger OFF condition Cab Display Control operation A600 Inverter reset Unexpected Inverter reset On/Off reset A600, LED steady. Stop all operations A601 Inverter not ready Generator overspeed Automatic Nothing, displayed only on service tool Stop all operations A604 Compressor drive under power Drive ON, power continuously less than 100W for at least 10 sec. On/Off reset If Cool mode, A604, LED steady. Otherwise A604, LED flashing Do not allow cool mode A606 Inverter IGBT module over temperature Temperature > 100 C for at least 30 sec. Automatic after 30 sec. when failure condition disappears If Cool mode, A606, LED steady. Otherwise A606, LED flashing Do not allow cool mode A607 Inverter: internal fault Inverter: internal fault On/Off reset If Cool mode, A607, LED steady. Otherwise A607, LED flashing Do not allow cool mode A608 / A620 Not used A621 Inverter IGBT module temperature Inverter IGBT module over temperature Automatic after 10 sec. when failure condition disappears If Cool mode, A621, LED steady. Otherwise A621, LED flashing Stop road mode operation A622 / A623 Not used A624 Inverter, generator or generator harness fault Inverter voltage regulation Automatic Inverter shall be reset at power source change If Cool mode, A624, LED steady. Otherwise A624, LED flashing Stop road mode operation A625 Not used A626 Bulk over voltage road mode Bulk over voltage On/Off reset if more than 15 occurrences within an 1 hour period. If Cool mode, A626, LED steady. Otherwise A626, LED flashing Stop road mode operation A627 Not used Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #58/66

59 Microprocessor Data & security Alarms list Inverter ALARM CODE DESCRIPTION Trigger ON condition Trigger OFF condition Cab Display Control operation A628 A629 A630 A631 A635 Inverter: internal fault Bulk under voltage road mode Inverter: internal fault Inverter unbalanced current (road mode) Not used Inverter: internal fault Bulk under voltage On/Off reset if more than 15 occurrences within 1 hour. OFF reset if more than 15 occurrences within 1 hour. A628, LED steady. Stop all operations If Cool mode, A629, LED steady. Otherwise A629, LED flashing Inverter: internal fault Manual reset If Cool mode, A630, LED steady. Otherwise A630, LED flashing Stop road mode operation Stop road mode operation Inverter: internal fault Manual reset Display A631, LED steady Stop all operations, do not allow inverter initialization A636 Bulk over voltage standby mode Bulk over voltage On/Off reset if more than 15 occurrences within 1 hour. If Cool mode, A636, LED steady. Otherwise A636, LED flashing Stop stby mode operation A637 Bulk under voltage standby mode Bulk under voltage On/Off reset if more than 15 occurrences within 1 hour. If Cool mode, A637, LED steady. Otherwise A637, LED flashing Stop stby mode operation A638 Inverter DC Aux failure Inverter DC Aux over load On/Off reset if more than 15 occurrences within 1 hour. If Cool mode, A638, LED steady. Otherwise A638, LED flashing Stop stby mode operation A639 Inverter DC Aux failure Inverter DC Aux short circuit Manual reset If Cool mode, A639, LED steady. Otherwise A639, LED flashing Stop stby mode operation A640 Inverter: internal fault Inverter: internal fault Automatic Inverter shall be reset at power source change If Cool mode, A640, LED steady. Otherwise A640, LED flashing Stop stby mode operation A641 Inverter DC AUX failure Inverter DC AUX over voltage On/Off reset if more than 15 occurrences within 1 hour. If Cool mode, A641, LED steady. Otherwise A641, LED flashing Stop stby mode operation Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #59/66

60 Microprocessor Data & security Alarms list Inverter ALARM CODE DESCRIPTION Trigger ON condition Trigger OFF condition Cab Display Control operation A642 Inverter DC AUX failure Inverter DC AUX under voltage On/Off reset if more than 15 occurrences within 1 hour. If Cool mode, A642, LED steady. Otherwise A642, LED flashing Stop stby mode operation A643 Inverter DC AUX failure Inverter DC AUX short circuit Manual reset If Cool mode, A643, LED steady. Otherwise A643, LED flashing Stop stby mode operation A644 Not used A645 Inverter: internal fault Inverter: internal fault Automatic Inverter shall be reset at power source change A645, LED steady. Stop all operations A646 Not used A647 Battery mismatch between 12 & 24 Vdc Mismatch between 12 & 24 Vdc Manual reset A647, LED steady. Stop all operations A648 Inverter failure Inverter over temperature Automatic Inverter shall be reset at power source change A648, LED steady. Stop all operations A649 Not used A650 Battery voltage failure Battery under voltage Automatic Inverter shall be reset at power source change A650, LED steady. Stop all operations A651 Inverter: internal fault Inverter: internal fault Manual reset A651, LED steady. Stop all operations A652 Standby supply fault 1 phase loss Automatic Inverter shall be reset at power source change If Stby mode, A652, LED steady. Otherwise A652, LED flashing Stop stby mode operation A653 Inverter power management issue Inverter power management Automatic Inverter shall be reset at power source change A653, LED steady. Stop all operations Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #60/66

61 Microprocessor Data & security Alarms list Inverter ALARM CODE DESCRIPTION Trigger ON condition Trigger OFF condition Cab Display Control operation A654 Inverter internal failure Inverter internal fault Automatic after 10 sec. when failure condition disappears A654, LED steady. Stop all operations A655/A670 Not used A671 A672 Inverter: internal fault Inverter: internal fault Inverter: internal fault Manual reset A671, LED steady. Stop heat or defrost mode Inverter: internal fault Manual reset A672, LED steady. Stop heat or defrost mode Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #61/66

62 Microprocessor Data & security Overrides list Nb Mode Description Action 0x000 Off No override No action 0x100 Active No override No action 0x110 Active CDSP stopped Monitoring only 0x111 Active CDSP init step 1 Monitoring only 0x112 Active CDSP init step 2 Monitoring only 0x113 Active CDSP init step 3 Monitoring only 0x114 Active CDSP init step 4 Monitoring only 0x115 Active CDSP source select Monitoring only 0x116 Active CDSP battery checking Monitoring only 0x117 Active CDSP setting VRDSP Monitoring only 0x118 Active CSDP starting VRDSP Monitoring only 0x119 Active CDSP init completed Monitoring only 0x120 Active VRDSP not configured Monitoring only 0x121 Active VRDSP Road stopped Monitoring only 0x122 Active VRDSP Road soft start Monitoring only 0x123 Active VRDSP Road running Monitoring only 0x131 Active VRDSP Standby stopped Monitoring only 0x132 Active VRDSP Standby soft start Monitoring only 0x133 Active VRDSP Standby running Monitoring only 0x200 Null No override Normal Null Mode 0x201 Null Box Over-heating EFM at maximum speed 0x202 Null Post ventilation EFM at minimum speed for 30 seconds after heat Mode existing 0x203 Null Equalization Re-open PEV for one minute while Equalization failure alarm is active 0x204 Null Door opened EFM stopped 0x205 Null Air sampling EFM forced to minimum speed for 1mn every 10 mn Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #62/66

63 Microprocessor Data & security Overrides list Nb Mode Description Action 0x206 Null Post Defrost EFM restart delayed for 40 seconds after Defrost 0x207 Null Defrost in another compartment Stay in Null Mode while other compartments are defrosting 0x208 Null Forced Null Mode Stay in Null Mode until Null Mode delay is elapsed 0x210 Null Bulkhead Fan: high RAT in other Compartment Stay in Null Mode until Cpt#1 conditions are correct 0x300 Cooling No override Normal Cool Mode 0x301 Cooling Compressor pre-heating Compressor pre-heating (DC injection) 0x302 Cooling Short Starting sequence Compressor is starting 0x303 Cooling Normal Starting sequence Compressor is starting 0x304 Cooling Liquid Slugging Starting Compressor is starting 0x305 Cooling Long Starting sequence Compressor is starting 0x306 Cooling Limited ramp-up/speed Compressor ramp-up speed is limited to 0.2 Hz/s and speed is limited to 60 Hz during starting sequence 0x307 Cooling Hz envelop limits Compressor frequency limitation Hz 0x308 Cooling Hz envelop limits & Low power/low speed Compressor frequency limitation Hz 0x309 Cooling Hz envelop limits Compressor frequency limitation Hz 0x30A Cooling CDT active in pull-down Compressor controlled by CDT PI controller 0x30B Cooling CDP active in pull-down Compressor controlled by CDP PI controller 0x30C Cooling Low temp in other Cpt Compressor frequency limited to 40 Hz 0x30D Cooling Door management Stop compartment cooling, switch to Null Mode 0x30E Cooling Compressor min on-time Continue to run compressor 0x30F Cooling Not prioritary Monitory only 0x310 Cooling Post-defrost EFM re-starting delayed for 40 seconds 0x312 Cooling Stopping sequence Cool Mode is stopping 0x313 Cooling Defrost in another compartment Compressor is ran at reduced speed to allow other compartment to defrost 0x322 Cooling Short Starting sequence with PEV failure Compressor is starting Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #63/66

64 Microprocessor Data & security Overrides list Nb Mode Description Action 0x313 Cooling Defrost in another compartment Compressor is ran at reduced speed to allow other compartment to defrost 0x322 Cooling Short Starting sequence with PEV failure Compressor is starting 0x323 Cooling Normal starting sequence with PEV failure Compressor is starting 0x324 Cooling Liquid Slugging Starting with PEV failure Compressor is starting 0x325 Cooling Long Starting sequence with PEV failure Compressor is starting 0x400 Defrost No override Normal defrost 0x401 Defrost End of defrost Reduced heating power (DTT > 3 C) 0x402 Defrost Natural defrost No heating, no fan (future feature) 0x403 Defrost Defrost not prioritary Defrost is running on another compartment 0x404 Defrost Door opened Normal defrost (no change, monitoring only) 0x500 Heating No override Normal heating 0x501 Heating Door opened Stop heating capacity, switch to Null Mode 0x502 Heating Transparent Defrost EFM speed reduced to 25% and full heating power until DDT reaches 2 C threshold 0x503 Heating Heater power sharing Heating power is shared in order to have a maximum heating power sum of 3000W 0x504 Heating Heater reduced power Heating power is reduced to allow other compartment to defrost Override display on cab command pressing minus key Carrier Transicold Europe 16/02/12 Pulsor - Microprocessor/Rev- #64/66