Danfoss VLT HVAC Basic Drive FC 101 Quick Manual page 38

Quick Guide
Alarm/
Warning
Fault Bit
number Number Fault text
57 timeout
58 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 initialized
Auto DC
87 47 Braking
95 40 Broken Belt
126 Motor Rotating
200 Fire Mode
Fire Mode
Limits
202 Exceeded
New spare
250 part
251 New Typecode
Table 1.29
®
VLT HVAC Basic Drive Quick Guide
Trip
Warning Alarm locked Cause of problem
Try to start the again a number of times, until the is carried out.
NOTE!
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.
X
X X Contact the 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 adjustable frequency drive (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 40–125 hp [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 the 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 High back emf voltage. Stop the motor of the PM motor.
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 40–125 hp [30–90 kW] units). Contact the local
X X Danfoss supplier
The adjustable frequency drive has a new type code (only on 400 V
X X 40–125 hp [30–90 kW] units). Contact the local Danfoss supplier.
®
MG18A422 - VLT is a registered Danfoss trademark
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