Applicable Systems
MoviDrive
Symptoms
System fault: internal system error (F21).
Possible Causes
- Internal hardware failure
- Firmware error
- Component failure
Troubleshooting Steps
- Step 1: Power cycle the drive
Fault may clear if transient - Step 2: Check for visible damage
No physical damage - Step 3: Replace control board if persistent
New board initializes correctly
How to Reset
Reset via control panel after system repair.
Source: SEW Movidrive MDX61A System Manual, SEW-EURODRIVE
Category: PLC & VFD