37
ALARM 45, Earth fault 2:
There is a discharge from the output phases to earth,
either in the cable between the frequency converter and
the motor or in the motor itself. Turn off the frequency
converter and remove the earth fault. This alarm is
detected under the start-up test sequence.
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
Motor Speed Low Limit [RPM] and par. 4-13 Motor
Speed High Limit [RPM].
ALARM 50, AMA calibration failed:
The motor is not suitable for the particular size of drive.
Start the AMA procedure once again by par. 1-29
Automatic Motor Adaptation (AMA), eventually with a
reduced AMA function. If still failing; check the motor
data.
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 settings.
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 small for the AMA to be carried out.
ALARM 55, AMA par. out of range:
The motor parameter values found from the motor are
outside 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 Current
Limit.
ALARM/WARNING 61, Feedback Error:
An error between calculated speed and speed
measurement from feedback device. The function
Warning/Alarm/Disabling setting is in par. 4-30 Motor
Feedback Loss Function. Accepted error setting in par. 4-
31 Motor Feedback Speed Error and the allowed time the
error occur setting in par. 4-32 Motor Feedback Loss
Timeout. 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 Max Output Frequency. This is a warning in
VVCplus mode and an alarm (trip) in Flux mode.
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 65, Control 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 increased 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 normal
operation, apply 24 V DC to T-37. Press reset button on
LCP.
WARNING 68, Safe Stop:
Safe Stop has been activated. Normal operation is
resumed when Safe Stop is disabled. Warning:
Automatic Restart!
ALARM 70, Illegal FC Configuration:
Actual combination of control board and power 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, Digital 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.
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