Quick Guide
Alarm/
Warning
Fault
Bit
number
Number
Fault text
AMA par.
55
range
AMA user
56
interrupt
57
AMA timeout
58
AMA internal
59
25
Current limit
External
60
44
Interlock
Heat sink
Temperature
66
26
Low
Pwr. Card
69
1
Temp
Illegal power
section config-
79
uration
Drive
80
29
initialised
Auto DC
87
47
Braking
95
40
Broken Belt
200
Fire Mode
Fire Mode
Limits
202
Exceeded
250
New sparepart
251
New Typecode
®
VLT
HVAC Basic Drive Cascade Controller Quick Guide
Trip
Warning Alarm
locked Cause of problem
The parameter values found from the motor are outside
X
acceptable range
X
The AMA has been interrupted by the user
Try to start the AMA again a number of times, until the AMA is
carried out. Please note that repeated runs may heat the motor to
a level where the resistance Rs and Rr are increased. In most cases,
X
however, this is not critical
X
X
Contact your 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 external interlock
and reset the frequency converter (via serial communication,
X
digital I/O, or by pressing reset button on keypad).
This warning is based on the temperature sensor in the IGBT
X
module (Only on 400 V 30-90 kW units).
The temperature sensor on the power card is either too hot or too
X
X
X
cold.
X
X
Internal fault. Contact your local Danfoss supplier.
X
All parameter settings are initialized to default settings.
X
The drive is auto DC braking
Torque is below the torque level set for no load, indicating a
X
X
broken belt. See parameter group 22-6*.
X
Fire mode has been activated
X
Fire Mode has suppressed one or more warranty voiding alarms
The power or switch mode power supply has been exchanged.
(Only on 400 V 30-90 kW units). Contact your local Danfoss
X
X
supplier
The frequency converter has a new type code (Only on 400 V
X
X
30-90 kW units). Contact your local Danfoss supplier.
®
MG18F202 - VLT
is a registered Danfoss trademark
1
1
29
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