Warnings And Alarms - Danfoss VLT FC 101 Quick Manual

Quick Guide

1.6 Warnings and Alarms

Alarm/
Warning
Fault Bit
number Number Fault text
2 16 Live zero error
4 14 Mains ph. loss
7 11 DC overvolt
8 10 DC undervolt
Inverter
9 9 overload
Motor ETR
10 8 over
11 7 Motor th over
13 5 Overcurrent
14 2 Ground Fault
16 12 Short Circuit
17 4 Ctrl.word TO
24 50 Fan Fault
30 19 U phase loss
31 20 V phase loss
32 21 W phase loss
38 17 Internal fault
44 28 Ground Fault
Control
47 23 Voltage Fault
VDD1 Supply
48 25 Low
AMA
Calibration
50 failed
AMA
51 15 Unom,Inom
52 AMA low Inom
AMA big
53 motor
AMA small
54 mot
AMA par.
55 range
AMA user
56 interrupt
57 AMA timeout
VLT HVAC Basic Drive Quick Guide
Trip
Warning Alarm locked Cause of problem
Signal on terminal 53 or 54 is less than 50% of value set in par.
X X 6-10, 6-12, 6-20 or 6-22. See also parameter group 6-0X
Missing phase on supply side or too high voltage imbalance. Check
X X X supply voltage. See parameter 14-12
X X Intermediate circuit voltage exceeds the limit.
Intermediate circuit voltage drops below the "voltage warning low"
X X limit.
X X More than 100% load for too long.
Motor is too hot due to more than 100% load for too long. See
X X parameter 1-90
The thermistor or the thermistor connection is disconnected. See
X X parameter 1-90.
X X X Inverter peak current limit is exceeded.
X X Discharge from output phases to ground.
X X Short-circuit in the motor or on the motor terminals.
No communication to Adjustable frequency drive. See parameter
X X group 8-0X
The fan is not working (Only on 400 V 40–125 hp [30–90 kW]
X X units).
X X Motor phase U is missing. Check the phase. See parameter 4-58.
X X Motor phase V is missing. Check the phase. See parameter 4-58.
X X Motor phase W is missing. Check the phase. See parameter 4-58.
X X Contact your local Danfoss supplier.
X X Discharge from output phases to ground.
X X X 24 V DC may be overloaded.
X X Control voltage low. Please contact your local Danfoss supplier.
X Contact your local Danfoss supplier.
The setting of motor voltage, motor current and motor power is
X presumably wrong. Check the settings.
X The motor current is too low. Check the settings.
X The motor is too big for the AMA to be carried out
X The motor is too small for the AMA to be carried out
The parameter values found from the motor are outside acceptable
X 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 resistances Rs and Rr are increased. In most
X cases, however, this is not critical.
®
MG18A322 - VLT is a registered Danfoss trademark
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