Danfoss VLT Decentral Drive FCD 302 Operating Manual page 53

VLT® Decentral Drive FCD 302
Operating Guide
6.8.36 WARNING 48, 1.8 V Supply Low
Cause
The 1.8 V DC supply used on the control card is outside of the allowed limits. The supply is measured on the control card.
Troubleshooting
• Check for a defective control card.
• If an option card is present, check for overvoltage.
6.8.37 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.
6.8.38 ALARM 50, AMA Calibration Failed
Troubleshooting
• Contact the Danfoss supplier or service department.
6.8.39 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.
6.8.40 ALARM 52, AMA Low Inom
Cause
The motor current is too low.
Troubleshooting
• Check the settings in parameter 1-24 Motor Current.
6.8.41 ALARM 53, AMA Motor Too Big
Cause
The motor is too big for the AMA to operate.
6.8.42 ALARM 54, AMA Motor Too Small
Cause
The motor is too small for the AMA to operate.
6.8.43 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.
6.8.44 ALARM 56, AMA Interrupted by User
Cause
The AMA is manually interrupted.
6.8.45 ALARM 57, AMA Internal Fault
Cause
Try to restart the AMA. Repeated restarts can overheat the motor.
6.8.46 ALARM 58, AMA Internal Fault
Troubleshooting
Contact the Danfoss supplier.
Danfoss A/S © | 2020.07
Maintenance, Diagnostics and
Troubleshooting
AQ267036816112EN-000101 / 130R0208 | 53