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38
8.6.3 - Compressor alarms
Alarm code*
Description
Reset type
Possible cause
XX-01
Motor temperature too high
Manual
Motor/wiring fault
XX-02
Motor temperature outside the range
Manual
Probe defective or incorrect wiring
XX-03
Motor temperature outside the range
Manual
Coil fouled, lack of condenser flow, condenser valve blocked, fan circuit fault,
high entering air or condenser water temperature
XX-04
Current consumption too high
Manual
-
XX-05
Locked rotor
Manual
Mechanical compressor fault, motor fault or defective compressor slide valve
XX-06
Phase L1 lost
Manual
Power supply wiring fault
XX-07
Phase L2 lost
Manual
As above
XX-08
Phase L3 lost
Manual
As above
XX-09
Low current alarm
Manual
Defective contactor or capacity fault
XX-10
Current increase fault during the star-delta
passage
Manual
Incorrect wiring or no power for the delta contactor
XX-11
Contactor fault
Manual
Incorrect wiring or defective contactor or TCPM board
XX-12
Motor stop impossible
Manual
Incorrect wiring or defective contactor
XX-13
Phase reversal
Manual
-
XX-14
MTA configuration fault
Manual
MTA configuration incorrect or defective TCPM board
XX-15
Incorrect configuration switch
Manual
Configuration switch S1 incorrect wiring or defective TCPM board
XX-16
Switch modification detected
Manual
As above
XX-17
Power supply cut during operation
Automatic
Verify that power supply cuts have occurred
XX-18
Critical software error (UL 1998)
Manual
Power network noise or defective TCPM board
XX-19
Critical error on two current parameters
(UL 1998)
Manual
Power network noise or defective TCPM board
*XX stands for compressor (11 – compressor A, 21 – compressor B, 31 - compressor C)
Code
Alarm /Alert
Description
Action to be taken
7
Alert
DC overvoltage
Contact Carrier Service
8
Alert
DC undervoltage
Contact Carrier Service
9
Alert
Inverter overloaded
Check the VFD output current
10
Alert
Motor overtemperature
Check the motor temperature
11
Alert
Motor thermistor
Contact Carrier Service
12
Alert
Torque limit exceeded
Check the VFD output current
13
Alert
Overcurrent
Check the VFD output current
14
Alert
Earth fault
Check if an earth fault exists
17
Alert
Control word timeout
Check the connections and the shielding of the serial communication cable
23***
Alert
Internal fan fault
Check the internal fan rotation
25
Alert
Brake resistor short-circuited
Contact Carrier Service
26
Alert
Brake resistor power limit
Contact Carrier Service
28
Alert
Brake verification
Contact Carrier Service
34
Alert
Fieldbus communication fault
Check the connections and the shielding of the serial communication cable
36
Alert
Mains failure
Check the VFD supply voltage and the phase balance (±3%)
47
Alert
24 V supply low
Contact Carrier Service
49
Alert
Motor speed limit exceeded
Contact Carrier Service
59
Alert
Current limit exceeded
Check the VFD output current
62
Alert
Output frequency at maximum limit
Check the VFD output current
64
Alert
Voltage limit
Supply voltage too low
65
Alert
Control board overtemperature
Check the space temperature and the VFD fan
66
Alert
Heat sink temperature low
Space temperature too low
71
Alert
PTC1 emergency stop
Contact Carrier Service
72
Alert
Emergency stop
Contact Carrier Service
90†
Alert
Encoder loss
Contact Carrier Service
94
Alert
End of curve
Contact Carrier Service
95
Alert
Torque loss
Contact Carrier Service
96
Alert
Start delayed
Contact Carrier Service
97
Alert
Stop delayed
Contact Carrier Service
98
Alert
Clock fault
Contact Carrier Service
243
Alert
IGBT defective
Contact Carrier Service
247
Alert
Capacity board temperature
Contact Carrier Service
* Error 24 and 104 possible
** Error 50 to 58 possible
*** Error 70 or 250 possible
† Not applicable to variator size 102