Applicable Systems
Lithrone G40
Symptoms
The printing press reports a main motor inverter fault. The main drive inverter has detected an internal error.
Possible Causes
- Inverter overcurrent from excessive load
- Inverter overheating from inadequate ventilation
- Input voltage transient or phase imbalance
Troubleshooting Steps
- Step 1: Check the inverter fault display for the specific code
Fault code is identified - Step 2: Verify inverter cooling fan and ventilation
Cooling is adequate for the load - Step 3: Check input voltage balance across all phases
Voltages are balanced within 3 percent
How to Reset
To reset: Resolve the inverter fault, then reset the drive and restart the press.
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Source: Komori Lithrone Operating Manual, Komori Corporation
Category: Printing
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