Troubleshooting; Acoustic Noise Or Vibration; List Of Warnings And Alarms - Danfoss VLT Compressor Drive CDS 803 Bedienungsanleitung

VLT® Compressor Drive CDS 803
Operating Guide

5 Troubleshooting

5.1 Acoustic Noise or Vibration

If the compressor is making noise or vibrations at certain frequencies, set the speed bypass parameters in parameter 4-6* Speed
Bypass.

5.2 List of Warnings and Alarms

Table 18: Warnings and Alarms
Fault Alarm/ Fault text
num- warning
ber bit num-
ber
2 16 Live zero error
3 No motor
4 14 Mains ph. loss
7 11 DC over volt
8 10 DC under volt
9 9 Inverter over-
load
10 8 Motor ETR over
11 7 Motor th over
13 5 Over Current
14 2 Earth Fault
16 12 Short Circuit
17 4 Ctrl. word TO
24 50 Fan Fault
30 19 U phase loss
31 20 V phase loss
32 21 W phase loss
38 17 Internal fault
Danfoss A/S © 2019.12
Warn- Alarm Trip Cause of problem
ing lock
X X – 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 Terminal 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.
– X – The motor is not connected properly to the drive.
X X X Missing phase on the supply side or too high voltage im-
balance. Check the supply voltage. See parameter 14-12
Function at Mains Imbalance.
X X – DC-link voltage exceeds the limit.
X X – DC-link voltage drops below voltage warning low-limit.
X X – More than 100% load for a long time.
X X – For 6.0–10 kW (8.0–15 hp) drives: The motor is too hot due
to more than 100% load for a long time. See parameter
1-90 Motor Thermal Protection.For 18.5–30 kW (22–40 hp)
drives: Parameter 1-90 Motor Thermal Protection is disabled.
Alarm 10 is used for compressor overload.
X X – Thermistor or thermistor connection is disconnected. See
parameter 1-90 Motor Thermal Protection.
X X X Inverter peak current limit is exceeded.
– X X Discharge from output phases to ground.
– X X Short circuit in motor or on motor terminals.
X X – No communication to drive. See parameter group 8-0*
General Settings.
X X – The heat sink cooling fan is not working (only on 400 V,
30 kW (40 hp) units).
– X X Motor phase U is missing. Check the phase.
– X X Motor phase V is missing. Check the phase.
– X X Motor phase W is missing. Check the phase.
– X X Contact the local Danfoss supplier.
Troubleshooting
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