Danfoss VLT FC 102 Operating Manual page 77

VLT HVAC Drive FC 102
Operating Guide
Troubleshooting
•
Check the settings in parameter 1-24 Motor Current.
7.6.48 ALARM 53, AMA Motor Too Big
Cause
The motor is too big for the AMA to operate.
Troubleshooting
• Check the settings in parameter group 1-2* Motor Data.
7.6.49 ALARM 54, AMA Motor Too Small
Cause
The motor is too small for the AMA to operate.
Troubleshooting
•
Check the settings in parameter group 1-2* Motor Data.
7.6.50 ALARM 55, AMA Parameter Out of Range
Cause
The AMA cannot run because the paramenter values of the motor are out of the acceptable range.
Troubleshooting
• Check the settings in parameter group 1-2* Motor Data.
7.6.51 ALARM 56, AMA Interrupted by User
Cause
The AMA is manually interrupted.
Troubleshooting
• Re-run the AMA calibration.
7.6.52 ALARM 57, AMA Internal Fault
Cause
Internal fault.
Troubleshooting
Try to restart the AMA. Repeated restarts can overheat the motor.
7.6.53 ALARM 58, AMA Internal Fault
Cause
Internal fault.
Troubleshooting
Contact the Danfoss supplier.
7.6.54 WARNING 59, Current Limit
Cause
The current is higher than the value in parameter 4-18 Current Limit.
Troubleshooting
•
Ensure that the motor data in parameters 1-20 to 1-25 is set correctly.
• Increase the current limit if necessary. Ensure that the system can operate safely at a higher limit.
7.6.55 WARNING 60, External Interlock
Cause
A digital input signal indicates a fault condition external to the drive. An external interlock has commanded the drive to trip.
Troubleshooting
• Clear the external fault condition.
• To resume normal operation, apply 24 V DC to the terminal programmed for external interlock.
• Reset the drive.
Danfoss A/S © 2023.09
Diagnostics and Troubleshooting
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