Troubleshooting118 UM-PRORUNNER_Mk5-1.2-EN-US13.7 Error signal on the DriveControlAn error signal on the DriveControl is switched with the following faults:• RollerDrive error• RollerDrive is not connected• Fuse defective• Permissible operating voltage range has been exceeded or fallen below• Operating voltage reverse connected• Chopper resistance overheatedDriveControl does not functionor functions incorrectly.No power supply. Check whether the output volt-age of the power supply iswithin the specified voltagerange.Inspect the connections andcorrect if necessary.Wrong position of the DIPswitches.Check and if necessary correctthe position of the DIP switchesaccording to the Interroll docu-mentation.DriveControl defective or dam-aged.Internal fuse triggered or defec-tive.Replace the DriveControl.Problem Possible cause Solution