Danfoss VLT AutomationDrive FC 300 Design Manual page 176

10. Troubleshooting
WARNING 47, 24 V supply low:
The external 24 V DC backup power supply
may be overloaded, otherwise Contact your
Danfoss supplier.
WARNING 48, 1.8 V supply low:
Contact your Danfoss supplier.
WARNING 49, Speed limit:
The speed is not within the specified range in
par. 4-11 and par. 4-13.
ALARM 50, AMA calibration failed:
Contact your Danfoss supplier.
ALARM 51, AMA check Unom and Inom:
The setting of motor voltage, motor current,
and motor power is presumably wrong. Check
the settings.
ALARM 52, AMA low Inom:
The motor current is too low. Check the set-
tings.
ALARM 53, AMA motor too big:
The motor is too big for the AMA to be carried
out.
ALARM 54, AMA motor too small:
The motor is too big for the AMA to be carried
out.
ALARM 55, AMA par. out of range:
The par. values found from the motor are out-
10
side acceptable range.
ALARM 56, AMA interrupted by user:
The AMA has been interrupted by the user.
ALARM 57, AMA timeout:
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, however, this is not critical.
ALARM 58, AMA internal fault:
Contact your Danfoss supplier.
WARNING 59, Current limit:
The current is higher than the value in par.
4-18.
WARNING 61, Tracking Error:
An error between calculated speed and speed
measurement from feedback device. The
function Warning/Alarm/Disabling setting is in
par 4-30. Accepted error setting in par 4-31
and the allowed time the error occur setting in
par 4-32. During a commissioning procedure
the function may be effective.
WARNING 62, Output Frequency at
Maximum Limit:
The output frequency is higher than the value
set in par. 4-19
176
ALARM 63, Mechanical Brake Low:
The actual motor current has not exceeded
the "release brake" current within the "Start
delay" time window.
WARNING 64, Voltage Limit:
The load and speed combination demands a
motor voltage higher than the actual DC link
voltage.
WARNING/ALARM/TRIP
Card Over Temperature:
Control card over temperature: The cut-out
temperature of the control card is 80° C.
WARNING 66, Heatsink Temperature
Low:
The heat sink temperature is measured as 0°
C. This could indicate that the temperature
sensor is defect and thus the fan speed is in-
creased to the maximum in case the power
part or control card is very hot.
ALARM 67, Option Configuration has
Changed:
One or more options has either been added or
removed since the last power-down.
ALARM 68, Safe Stop:
Safe Stop has been activated. To resume nor-
mal operation, apply 24 V DC to T-37, then
send a reset signal (via Bus, Digital I/O, or by
pressing [RESET]).
WARNING 68, Safe Stop:
Safe Stop has been activated. Normal opera-
tion is resumed when Safe Stop is disabled.
Warning: Automatic Restart!
ALARM 70, Illegal FC Configuration:
Actual combination of control board and pow-
er board is illegal.
ALARM 71, PTC 1 Safe Stop:
Safe Stop has been activated from the MCB
112 PTC Thermistor Card (motor too warm).
Normal operation can be resumed when the
MCB 112 applies 24 V DC to T-37 again (when
the motor temperature reaches an acceptable
level) and when the Digital Input from the
MCB 112 is deactivated. When that happens,
a reset signal must be is be sent (via Bus, Dig-
ital I/O, or by pressing [RESET]).
WARNING 71, PTC 1 Safe Stop:
Safe Stop has been activated from the MCB
112 PTC Thermistor Card (motor too warm).
Normal operation can be resumed when the
MCB 112 applies 24 V DC to T-37 again (when
the motor temperature reaches an acceptable
level) and when the Digital Input from the
MCB 112 is deactivated. Warning: Automatic
Restart.
MG.33.B9.02 - VLT ® is a registered Danfoss trademark
FC 300 Design Guide
65, Control