Danfoss VLT CDS 803 Operating Manual page 29

VLT® Compressor Drive CDS 803
Operating Guide
Table 11: Warnings and Alarms
Fault Fault text
number
2 Live zero error
3 No motor
4 Mains ph. loss
7 DC over volt
8 DC under volt
9 Inverter overld.
10 Motor ETR over
11 Motor th over
13 Overcurrent
14 Earth Fault
16 Short Circuit
17 Ctrl. word TO
18 Start failed
30 U phase loss
31 V phase loss
32 W phase loss
36 Mains failure
38 Internal fault
Danfoss A/S © 2021.06
Warn- Alarm Trip
ing locked
X
X
X
(1)
X X X
X X
X X
X X
X
(2)
X
X X
X X X
X X X
X X
X X
X
X
(2)
X
X
(2)
X
X
(2)
X
X X
X X
Cause of problem
Signal on terminal 53 or 54 is less than 50% of the value set in
parameter 6-10 Terminal 53 Low Voltage, parameter 6-12 Termi-
nal 53 Low Current, parameter 6-20 Terminal 54 Low Voltage, or
parameter 6-22 Terminal 54 Low Current. See also parameter
group 6-0* Analog I/O Mode.
No motor is connected.
Missing phase on the supply side or too high voltage imbal-
ance. Check the supply voltage. See parameter 14-12 Response
to Mains Imbalance.
DC-link voltage exceeds limit.
DC-link voltage drops below voltage warning low limit.
More than 100% load for too long.
The compressor is too hot due to more than 100% load for too
long.
The thermistor or the thermistor connection is disconnected.
Inverter peak current limit is exceeded.
Discharge from output phases to ground.
Short circuit in the motor or on the motor terminals.
No communication to the drive. See parameter group 8-0*
General Settings.
The speed has not been able to exceed parameter 1-78 Motor
Start Min Speed [Hz] during start within the allowed time.
Motor phase U is missing. Check the phase.
For 6–10 kW drives: See parameter 4-58 Missing Motor Phase
Function.
Motor phase V is missing. Check the phase.
For 6–10 kW drives: See parameter 4-58 Missing Motor Phase
Function.
Motor phase W is missing. Check the phase.
For 6–10 kW drives: See parameter 4-58 Missing Motor Phase
Function.
Supply voltage to the drive is lost.
Contact the local Danfoss supplier.
AQ321748767627en-000301 / 130R0570 | 29
Troubleshooting