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9.2.1.4 Motor Rotating in Wrong Direction
Possible Cause
Mirror mode activated.
Troubleshooting
Check the parameter settings.
9.2.1.5 Motor not Generating Expected Torque
Possible Cause
Drive defective.
Parameter error.
Troubleshooting
Check the parameter settings.
Contact Danfoss.
9.2.1.6 Drive Screaming
Possible Cause
Incorrect calibration.
Faulty current measurement.
Incorrect control loop parameters.
Troubleshooting
Check the parameter settings.
Contact Danfoss.
9.2.1.7 Uneven Running
Possible Cause
Defective bearing.
Troubleshooting
Check the shaft.
9.2.1.8 Vibration
Possible Cause
Defective bearing.
Incorrect control loop parameters.
Troubleshooting
Check the shaft.
Check the parameter settings.
9.2.1.9 Unusual Running Noises
Possible Cause
Defective bearing.
Defects on connected mechanics.
Incorrect control loop parameters.
Troubleshooting
Check the shaft.
Check for loose mechanical components on the connected mechanics.
Check the parameter settings.
AQ262449648484en-000101 / 175R1135
156 | Danfoss A/S © 2020.08
Diagnostics
VLT® Servo Drive System ISD 510/DSD 510
Operating Guide