Alarm 67, Option Module Configuration Has Changed - Danfoss VLT FC 102 Programming Manual

Programming Guide | VLT® HVAC Drive FC 102
Troubleshooting for Flux Mode
Check the application for possible causes. The load torque could be too significant to drag the motor run to a high speed.
l
Increase the output frequency limit. Ensure that the system can operate safely at a higher output frequency.
l
Cause for VVC TCL Mode
The output speed limit is reached, and the torque reference is derated. If the system is designed to reduce the speed by speed limit
function, the warning only means that the speed limit is active.
Troubleshooting for VVC TCL Mode
The system speed exceeds the speed limit, in this case, adjust the system speed or adjust the speed limit.
l
If the speed limit function is used to control system speed, the warning can be ignored.
l
ALARM 63, Mechanical Brake Low
Cause
The actual motor current has not exceeded the release brake current within the start delay time window.
WARNING 64, VOLTAGE LIMIT
Cause
The load and speed combination demands a motor voltage higher than the actual DC-link voltage.
Troubleshooting
Check if the mains input is not high enough.
l
Check if the output frequency is too high above motor nominal frequency.
l
WARNING/ALARM 65, Control Card Over Temperature
Cause
The cutout temperature of the control card has exceeded the upper limit.
Troubleshooting
Check that the ambient operating temperature is within the limits.
l
Check the fan operation.
l
Check the control card.
l
Warning 66, Heat Sink Temperature Low
Cause
The drive is too cold to operate. This warning is based on the temperature sensor in the IGBT module.
Troubleshooting
Increase the ambient temperature of the unit.
l
Supply a trickle amount of current to the drive whenever the motor is stopped by setting parameter 2-00 DC Hold/Preheat Current
l
to 5% and parameter 1-80 Function at Stop.

ALARM 67, Option Module Configuration Has Changed

Cause
One or more options have either been added or removed since the last power-down.
© 2024.10
Troubleshooting
AU430028034214en-001901 / 130R0310 | 739