Danfoss VLT Ea4 Operating Manual page 58

VLT Ea4 Parallel Drive Modules
Operating Guide
6.9.48 WARNING 49, Speed Limit
Cause
The warning is shown when the speed is outside of the specified range in parameter 4-11 Motor Speed Low Limit [RPM] and parame-
ter 4-13 Motor Speed High Limit [RPM]. When the speed is below the specified limit in parameter 1-86 Trip Speed Low [RPM] (except
when starting or stopping), the drive trips.
6.9.49 ALARM 50, AMA Calibration Failed
Cause
A calibration error has occurred.
Troubleshooting
• Contact the Danfoss supplier or Danfoss service department.
6.9.50 ALARM 51, AMA Check Unom and Inom
Cause
The settings for motor voltage, motor current, and motor power are wrong.
Troubleshooting
•
Check settings in parameters 1-20 to 1-25.
6.9.51 ALARM 52, AMA Low Inom
Cause
The motor current is too low.
Troubleshooting
• Check the settings in parameter 1-24 Motor Current.
6.9.52 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.
6.9.53 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.
6.9.54 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.
6.9.55 ALARM 56, AMA Interrupted by User
Cause
The AMA is manually interrupted.
Troubleshooting
• Re-run the AMA calibration.
6.9.56 ALARM 57, AMA Internal Fault
Cause
Internal fault.
Troubleshooting
Try to restart the AMA. Repeated restarts can overheat the motor.
58 | Danfoss A/S © 2023.01
Operating the Drive
AQ434333248451en-000101 / 130R1286