Danfoss VLT AQUA Drive FC 200 Operating Instructions Manual page 64

Warnings and Alarms
Remove power from the frequency converter and check
motor phase V.
ALARM 32, Motor phase W missing
Motor phase W between the frequency converter and the
motor is missing.
Remove power from the frequency converter and check
motor phase W.
ALARM 33, Inrush fault
Too many power-ups have occurred within a short time
period. Let the unit cool to operating temperature.
WARNING/ALARM 34, Fieldbus communication fault
Communication between the fieldbus and the communi-
cation option card is not operating.
WARNING/ALARM 35, Option fault
Option fault. Please contact your supplier.
WARNING/ALARM 36, Mains failure
This warning/alarm is only active if the supply voltage to
the frequency converter is lost and 14-10 Mains Failure is
NOT set to [0] No Function. Check the fuses to the
frequency converter and mains power supply to the unit.
WARNING/ALARM 37, Phase imbalance
There is a current imbalance between the power units.
ALARM 39, Heatsink sensor
No feedback from the heatsink temperature sensor.
The signal from the IGBT thermal sensor is not available on
the power card. The problem could be on the power card,
on the gate drive card, or the ribbon cable between the
power card and gate drive card.
WARNING 40, Overload of digital output terminal 27
Check the load connected to terminal 27 or remove short-
circuit connection. Check 5-00 Digital I/O Mode and
5-01 Terminal 27 Mode.
WARNING 41, Overload of digital output terminal 29
Check the load connected to terminal 29 or remove short-
circuit connection. Check 5-00 Digital I/O Mode and
5-02 Terminal 29 Mode.
WARNING 42, Overload of digital output on X30/6 or
overload of digital output on X30/7
For X30/6, check the load connected to X30/6 or remove
short-circuit connection. Check 5-32 Term X30/6 Digi Out
(MCB 101).
For X30/7, check the load connected to X30/7 or remove
short-circuit connection. Check 5-33 Term X30/7 Digi Out
(MCB 101).
ALARM 46, Power card supply
The supply on the power card is out of range.
There are three power supplies generated by the switch
mode power supply (SMPS) on the power card: 24V, 5V,
+/- 18V. When powered with 24V DC with the MCB 107
option, only the 24V and 5V supplies are monitored. When
powered with three phase mains voltage, all three
supplied are monitored.
®
VLT AQUA Drive
Operating Instructions
Troubleshooting
WARNING 47, 24 V supply low
The 24 V DC is measured on the control card. The external
24V DC backup power supply may be overloaded,
otherwise contact your Danfoss supplier.
WARNING 48, 1.8 V supply low
The 1.8V DC supply used on the control card is outside of
allowable limits. The power supply is measured on the
control card. Check for a defective control card. If an
option card is present, check for an overvoltage condition.
WARNING 49, Speed limit
When the speed is not within the specified range in
4-11 Motor Speed Low Limit [RPM] and 4-13 Motor Speed
High Limit [RPM], the frequency converter will show a
warning. When the speed is below the specified limit in
1-86 Trip Speed Low [RPM] (except when starting or
stopping) the frequency converter will trip.
ALARM 50, AMA calibration failed
Contact yourDanfoss supplier or DanfossService
Department.
ALARM 51, AMA check U
The settings for motor voltage, motor current, and motor
power are wrong. Check the settings in parameters 1-20 to
1-25.
ALARM 52, AMA low I
The motor current is too low. Check the setting in
4-18 Current Limit.
ALARM 53, AMA motor too big
The motor is too big for the AMA to operate.
ALARM 54, AMA motor too small
The motor is too small for the AMA to operate.
ALARM 55, AMA Parameter out of range
The parameter values of the motor are outside of the
acceptable range. AMAwill not run.
ALARM 56, AMA interrupted by user
The AMA has been interrupted by the user.
ALARM 57, AMA timeout
Try to restart AMA again. Repeated restarts may over heat
the motor.
ALARM 58, AMA internal fault
Contact your Danfoss supplier.
WARNING 59, Current limit
The current is higher than the value in 4-18 Current Limit.
Ensure that Motor data in parameters 1-20 through 1-25
are set correctly. Possibly increase the current limit. Be sure
the system can operate safely at a higher limit.
®
MG.20.M8.02 - VLT is a registered Danfoss trademark
Check for a defective power card.
Check for a defective control card.
Check for a defective option card.
If a 24V DC power supply is used, verify proper
supply power.
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