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 ow, 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 conguration fault Manual MTA conguration incorrect or defective TCPM board
XX-15 Incorrect conguration switch Manual Conguration switch S1 incorrect wiring or defective TCPM board
XX-16 Switch modication 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 verication 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
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