31
Code Alarm /Alert
4 Alarm Mains phase loss Check the VFD supply voltage and the phase balance (±3%)
7 Alarm Over voltage Contact Carrier Service
8 Alarm Under voltage Contact Carrier Service
9 Alarm Inverter overloaded Check the VFD output current/compressor current
12 Alarm Torque limit exceeded Check the VFD output current/compressor current
13 Alarm Overcurrent Check the VFD output current/compressor current
14 Alarm Earth fault Check if an earth fault exists
16 Alarm Motor short-circuit Check if there is a short-circuit at the VFD terminals
23* Alarm Internal fan fault Check the internal fan rotation
29 Alarm VFD temperature too high Space temperature too high or VFD ventilation obstructed or damaged
30 Alarm Motor phase U missing Check wiring of phase U
31 Alarm Motor phase V missing Check wiring of phase V
32 Alarm Motor phase W missing Check wiring of phase W
33 Alarm Inrush fault Current demand too high: Let the VFD cool down for 20 minutes before starting it again
34 Alarm Fieldbus communication fault Check the connections and the shielding of the serial communication cable
36 Alarm Mains failure Check the VFD supply voltage and the phase balance (±3%)
38 Alarm Internal fault Contact Carrier Service
47 Alarm 24 V supply low Contact Carrier Service
48 Alarm 1.8 V supply low Contact Carrier Service
65 Alarm Control board over temperature Check the space temperature and the VFD fan
67 Alarm Option conguration has changed Contact Carrier Service
68 Alarm Emergency stop Contact Carrier Service
80 Alarm Drive initialized to default value Contact Carrier Service
95 Alarm Torque loss Contact Carrier Service
243 Alarm IGBT defective Contact Carrier Service
251** Alarm New parts detached Contact Carrier Service
Code Alarm /Alert
3 Alert No motor Check the motor connections
4 Alert Mains phase loss Check the VFD supply voltage and the phase balance (±3%)
5 Alert DC link voltage high Check the VFD supply voltage and the phase balance (±3%)
6 Alert DC link voltage low Check the VFD supply voltage and the phase balance (±3%)
7 Alert DC over voltage Contact Carrier Service
8 Alert DC under voltage Contact Carrier Service
9 Alert Inverter overloaded Check the VFD output current/compressor current
12 Alert Torque limit exceeded Check the VFD output current/compressor current
13 Alert Overcurrent Check the VFD output current/compressor current
14 Alert Earth fault Check if an earth fault exists
23* Alert Internal fan fault; Compressor drive:
The drive will be stopped immediately;
Fan drive: The drive continues to
operate.
Check the internal fan rotation
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/compressor current
62 Alert Output frequency at maximum limit Check the VFD output current/compressor 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
90† Alert Encoder loss 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 70 or 250 possible
† Not applicable to variator size 102
7.6.2 - Drive alarms
Compressor drive alarms or alerts are displayed based on
the following formula: 17+X-YYY for alarms and
35+X-YYY for alerts (X stands for the number of the
circuit and YYY is the alarm/alert code).
Fan drive alarms or alerts are displayed based on the
following formula: 20-YYY to 25-YYY (20=A1, 21=A2,
22=A3 and 23=B1, 24=B2, 25=B3) or alert 38-YYY to
43-YYY (38=A1, 39=A2, 40=A3, 41=B1, 42=B2, 43=B3;
YYY stands for the alarm/alert code).
The tables below present the most common alarms
associated with the variator malfunction. Please refer to
the applicable Danfoss documentation for more
information on other alarms.
To Next Page
Loading...
