l When using terminal 53 or 54, check that the thermistor is connected correctly between either terminal 53 or 54 (analog voltage
input) and terminal 50 (+10 V supply). Also check that the terminal switch for 53 or 54 is set for voltage. Check that parameter 1-93
Thermistor Resource selects terminal 53 or 54.
l When using terminal 18, 19, 31, 32, or 33 (digital inputs), check that the thermistor is connected correctly between the digital input
terminal used (digital input PNP only) and terminal 50. Select the terminal to use in parameter 1-93 Thermistor Resource.
WARNING/ALARM 12, Torque Limit
Cause
The torque has exceeded the value in parameter 4-16 Torque Limit Motor Mode or the value in parameter 4-17 Torque Limit Generator
Mode. Parameter 14-25 Trip Delay at Torque Limit can change this warning from a warning-only condition to a warning followed by an
alarm.
Troubleshooting
l If the motor torque limit is exceeded during ramp-up, extend the ramp-up time.
l If the generator torque limit is exceeded during ramp-down, extend the ramp-down time.
l If torque limit occurs while running, increase the torque limit. Make sure that the system can operate safely at a higher torque.
l Check the application for excessive current draw on the motor.
WARNING/ALARM 13, Overcurrent
Cause
The inverter peak current limit (approximately 200% of the rated current) is exceeded. The warning lasts about 5 s, then the drive trips
and issues an alarm. Shock loading or fast acceleration with high-inertia loads can cause this fault.
Troubleshooting
l Remove power and check if the motor shaft can be turned.
l Check that the motor size matches the drive.
l Check parameters 1-20 to 1-25 for correct motor data.
ALARM 14, Ground Fault
Cause
There is current from the output phases to ground, either in the cable between the drive and the motor or in the motor itself.
Troubleshooting
l Remove power to the drive and repair the ground fault.
l Check for ground faults in the motor by measuring the resistance to ground of the motor cables and the motor with a meg-
ohmmeter.
ALARM 16, Short Circuit
Cause
There is short-circuiting in the motor or motor wiring.
Troubleshooting
l Remove power to the drive and repair the short circuit.
316 | Danfoss A/S © 2024.01 AU275649936274en-001401 / 130R0507
Programming Guide | VLT® AutomationDrive FC 360
To Next Page
Loading...
Need help?
General