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Transmission Error
Between (PFC Micom →
39
INV Micom)
■ Error Diagnosis and Countermeasure Flow Chart
Is PFC Micom & INV Micom
S/W Program normal?
Yes
Is Inverter PCB assembly normal?
Yes
Recheck power and installation condition
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Cause of error
Communication Error
Between PFC Micom
and INV Micom.
No
No
- 91 -
Part 5. Trouble Shooting
Check point & Normal condition
1. Micom defect/Circuit defect
2. Different Micom S/W Version
3. ODU inverter PCB assembly damage
Upgrade Micom Program
Replace inverter PCB assembly
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