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 overvolt
8
10
DC undervolt
9
9
Inverter overload
10
8
Motor ETR over
11
7
Motor th over
13
5
Overcurrent
14
2
Ground 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
Ground Fault
47
23
Control Voltage
Fault
48
25
VDD1 supply low
49
58
AMA internal
59
25
Current limit
MG18M122
Quick Guide
Warning
Alarm
Trip
Cause of problem
locked
X
X
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,
6-20 Terminal 54 Low Voltageor 6-22 Terminal 54 Low Current.
See also parameter group 6-0* Analog I/O Mode.
X
X
X
Missing phase on the supply side or too high voltage
imbalance. Check the supply voltage. See 14-12 Function at
Mains Imbalance.
X
X
Intermediate circuit voltage exceeds the limit.
X
X
Intermediate circuit voltage drops below the "voltage
warning low" limit.
X
X
More than 100% load for too long.
X
X
The motor is too hot due to more than 100% load for too
long. See 1-90 Motor Thermal Protection
X
X
The thermistor or the thermistor connection is disconnected.
See 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 the compressor or on the compressor
terminals.
X
X
No communication to the adjustable frequency drive. See
parameter group 8-0* General Settings.
X
The speed has not been able to exceed during start within
the allowed time.
X
X
Motor phase U is missing. Check the phase. See 4-58 Missing
Motor Phase Function.
X
X
Motor phase V is missing. Check the phase. See 4-58 Missing
Motor Phase Function.
X
X
Motor phase W is missing. Check the phase. See 4-58 Missing
Motor Phase Function.
X
X
Contact the local Danfoss supplier.
X
X
Discharge from output phases to ground, using the value of
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.
X
The speed is below the specified limit in .
X
X
Contact the local Danfoss supplier.
X
The current is higher than the value in 4-18 Current Limit.
Danfoss A/S © Rev. 08/2014 All rights reserved.
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1
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