Carrier SmartView - Page 55

8.6.2 - Drive alarms
Drive alarms or alerts for VFD drive failure are displayed based
on the following formulas:
16000+X*1000+YYY for alarms
34000+X*1000+YYY for alerts
X stands for the drive number and YYY is the alarm/alert code.
Drive number Drive assignment
1 Drive for fan(s) of circuit A
2 Drive for fan(s) of circuit B
3 Drive for water pump #1
4 Drive for water pump #2
Code Alarm/Alert Description Action to be taken
Variator alarms
2 Alarm Live zero fault Contact Carrier Service
4 Alarm Mains phase loss Check the VFD supply voltage and the phase balance (±3%)
7 Alarm Overvoltage Contact Carrier Service
8 Alarm Undervoltage Contact Carrier Service
9 Alarm Inverter overloaded Check the VFD output current
10 Alarm Motor overtemperature Check the motor temperature
11 Alarm Motor thermistor Contact Carrier Service
12 Alarm Torque limit exceeded Check the VFD output current
13 Alarm Overcurrent Check the VFD output 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
17 Alarm Serial communication timeout Check the connections and the shielding of the serial
communication cable
23* Alarm Internal fan fault Check the internal fan rotation
25 Alarm Brake resistor short-circuited Contact Carrier Service
26 Alarm Brake resistor power limit Contact Carrier Service
28 Alarm Brake verication Contact Carrier Service
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
57** Alarm AMA timeout Contact Carrier Service
65 Alarm Control board overtemperature Check the space temperature and the VFD fan
67 Alarm Option conguration has changed Contact Carrier Service
68 Alarm Emergency stop Contact Carrier Service
71 Alarm PTC 1 emergency stop Contact Carrier Service
72 Alarm Emergency stop Contact Carrier Service
80 Alarm Drive initialized to default value Contact Carrier Service
94 Alarm End of curve 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
Variator alerts
1 Alert 10 V low Contact Carrier Service
2 Alert Live zero error Contact Carrier Service
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%)
8 - DIAGNOSTICS
55