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Fault
number
Alarm/
Warning Bit
Number
Fault text
Warning
Alarm
Trip
locked
Cause of problem
51
15
AMA Unom,Inom
X
The setting of motor voltage, motor current and motor
power is presumably wrong. Check the settings.
52
AMA low Inom
X
The motor current is too low. Check the settings.
53
AMA big motor
X
The motor is too big to perform AMA.
54
AMA small mot
X
The motor is too small to perform AMA.
55
AMA par. range
X
The parameter values found from the motor are outside
acceptable range.
56
AMA user
interrupt
X
The AMA has been interrupted by the user.
57
AMA timeout
X
Try to start the AMA again a number of times, until the AMA
is carried out.
NOTICE!
Repeated runs may heat the motor to a level where
the resistance Rs and Rr are increased. In most cases,
however, this is not critical.
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
60
44
External Interlock
X
External interlock has been activated. To resume normal
operation, apply 24 V DC to the terminal programmed for
external interlock and reset the adjustable frequency drive
(via serial communication, digital I/O, or by pressing reset
button on keypad).
66
26
Heatsink
Temperature Low
X
This warning is based on the temperature sensor in the IGBT
module (Only on 400 V 40–125 hp [30–90 kW] units).
69
1
Pwr. Card Temp
X
X
X
The temperature sensor on the power card is either too hot
or too cold.
79
Illegal power
section configu-
ration
X
X
Internal fault. Contact the local Danfoss supplier.
80
29
Drive initialized
X
All parameter settings are initialized to default settings.
87
47
Auto DC Braking
X
The drive is auto DC braking.
95
40
Broken Belt
X
X
Torque is below the torque level set for no load, indicating a
broken belt. See parameter group
22-6* Broken Belt Detection
.
126
Motor Rotating
X
High back emf voltage. Stop the rotor of the PM motor.
200
Fire Mode
X
Fire mode has been activated.
202
Fire Mode Limits
Exceeded
X
Fire mode has suppressed one or more warranty voiding
alarms.
250
New spare part
X
X
The power or switch mode power supply has been
exchanged. (Only on 400 V 40–125 hp [30–90 kW] units).
Contact the local Danfoss supplier.
251
New Typecode
X
X
The adjustable frequency drive has a new type code (only on
400 V 40–125 hp [30–90 kW] units). Contact the local Danfoss
supplier.
Table 1.24 Warnings and Alarms
Quick Guide
Quick Guide
MG18A522
Danfoss A/S © Rev. 2014-01-22 All rights reserved.
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