Fault
number
Alarm/
warning bit
number
Fault text Warning Alarm Trip
locked
Cause of problem
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 frequency converter (via
serial communication, digital I/O, or by pressing reset button
on keypad).
66 26
Heat sink
Temperature Low
X – –
This warning is based on the temperature sensor in the IGBT
module (on 400 V, 30–90 kW (40–125 HP) and 600 V units).
69 1 Pwr. Card Temp X X X
The temperature sensor on the power card exceeds the
upper or lower limits.
70 36
Illegal FC configu-
ration
– X X
The control card and power card are not matched.
79 –
Illegal power
section configu-
ration
X X –
Internal fault. Contact the local Danfoss supplier.
80 29 Drive initialised – X – All parameter settings are initialised 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 sparepart – X X
The power or switch mode power supply has been
exchanged (on 400 V, 30-90 kW (40-125 HP) and 600 V units).
Contact the local Danfoss supplier.
251 – New Typecode – X X
The frequency converter has a new type code (on 400 V,
30-90 kW (40-125 HP) and 600 V units). Contact the local
Danfoss supplier.
Table 5.1 Warnings and Alarms
Warnings and Alarms Quick Guide
MG18A602 Danfoss A/S © 08/2014 All rights reserved. 41
5 5
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