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
number
Alarm/
Warning Bit
Number
Fault text
Warning
Alarm
Trip
locked
Cause of problem
2
16
Live zero error
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 Voltage
or
6-22 Terminal 54 Low Current
.
See also parameter group
6-0* Analog I/O Mode
.
4
14
Mains ph. loss
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
.
7
11
DC overvolt
X
X
Intermediate circuit voltage exceeds the limit.
8
10
DC undervolt
X
X
Intermediate circuit voltage drops below the “voltage
warning low” limit.
9
9
Inverter overload
X
X
More than 100% load for too long.
10
8
Motor ETR over
X
X
The motor is too hot due to more than 100% load for too
long. See
1-90 Motor Thermal Protection
11
7
Motor th over
X
X
The thermistor or the thermistor connection is disconnected.
See
1-90 Motor Thermal Protection
.
13
5
Overcurrent
X
X
X
Inverter peak current limit is exceeded.
14
2
Ground Fault
X
X
Discharge from output phases to ground.
16
12
Short circuit
X
X
Short circuit in the compressor or on the compressor
terminals.
17
4
Ctrl. word TO
X
X
No communication to the adjustable frequency drive. See
parameter group
8-0* General Settings
.
18
Start failed
X
The speed has not been able to exceed during start within
the allowed time.
30
19
U phase loss
X
X
Motor phase U is missing. Check the phase. See
4-58 Missing
Motor Phase Function
.
31
20
V phase loss
X
X
Motor phase V is missing. Check the phase. See
4-58 Missing
Motor Phase Function
.
32
21
W phase loss
X
X
Motor phase W is missing. Check the phase. See
4-58 Missing
Motor Phase Function
.
38
17
Internal fault
X
X
Contact the local Danfoss supplier.
44
28
Ground Fault
X
X
Discharge from output phases to ground, using the value of
15-31 Alarm Log Value
if possible.
47
23
Control Voltage
Fault
X
X
X
24 V DC may be overloaded.
48
25
VDD1 supply low
X
X
Control voltage low. Contact the local Danfoss supplier.
49
X
The speed is below the specified limit in .
58
AMA internal
X
X
Contact the local Danfoss supplier.
59
25
Current limit
X
The current is higher than the value in
4-18 Current Limit
.
Quick Guide
Quick Guide
MG18M122
Danfoss A/S © Rev. 08/2014 All rights reserved.
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