Acoustic Noise Or Vibration; Warnings And Alarms - Danfoss VLT CDS 803 Quick Manual

Quick Guide

1.5 Acoustic Noise or Vibration

If the compressor is making noise or vibrations at certain frequencies, try the following:
•
Speed Bypass, parameter group 4-6* Speed Bypass

1.6 Warnings and Alarms

Fault Alarm/ Fault text
number Warning Bit
Number
2 16 Live zero error
4 14 Mains ph. loss
7 11 DC over volt
8 10 DC under volt
9 9 Inverter overload
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
18 Start failed
30 19 U phase loss
31 20 V phase loss
32 21 W phase loss
38 17 Internal fault
44 28 Earth Fault
Control Voltage
47 23
Fault
48 25 VDD1 supply low
49
58 AMA internal
59 25 Current limit
60 44 External Interlock
MG18M102
Quick Guide
Warning Alarm Trip Cause of problem
locked
Signal on terminal 53 or 54 is less than 50% of the value set
in 6-10 Terminal 53 Low Voltage, 6-12 Terminal 53 Low Current,
X X
6-20 Terminal 54 Low Voltageor 6-22 Terminal 54 Low Current.
See also parameter group 6-0* Analog I/O Mode.
Missing phase on the supply side or too high voltage
X X X imbalance. Check the supply voltage. See 14-12 Function at
Mains Imbalance.
X X Intermediate circuit voltage exceeds limit.
Intermediate circuit voltage drops below "voltage warning
X X
low" limit.
X X More than 100% load for too long.
The motor is too hot due to more than 100% load for too
X X
long. See 1-90 Motor Thermal Protection
The thermistor or the thermistor connection is disconnected.
X X
See 1-90 Motor Thermal Protection.
X X X Inverter peak current limit is exceeded.
X X Discharge from output phases to ground.
Short-circuit in the compressor or on the compressor
X X
terminals.
No communication to the frequency converter. See
X X
parameter group 8-0* General Settings.
The speed has not been able to exceed 1-78 Compressor Start
X
Min Speed [Hz] during start within the allowed time.
Motor phase U is missing. Check the phase. See 4-58 Missing
X X
Motor Phase Function.
Motor phase V is missing. Check the phase. See 4-58 Missing
X X
Motor Phase Function.
Motor phase W is missing. Check the phase. See 4-58 Missing
X X
Motor Phase Function.
X X Contact the local Danfoss supplier.
Discharge from output phases to ground, using the value of
X X
15-31 Alarm Log Value if possible.
X X X
24 V DC may be overloaded.
X X Control voltage low. Contact the local Danfoss supplier
The speed is below the specified limit in 1-87 Compressor
X
Min. Speed for Trip [Hz].
X X Contact the local Danfoss supplier.
X The current is higher than the value in 4-18 Current Limit.
External interlock has been activated. To resume normal
operation, apply 24 V DC to the terminal programmed for
X
external interlock and reset the frequency converter (via
serial communication, digital I/O, or by pressing [Off/Reset]).
Danfoss A/S © Rev. 09/2014 All rights reserved.
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