Applicable Systems
Modicon M221
Modicon M241
Modicon M251
Modicon M340
Modicon M580
Altivar
Symptoms
DC bus voltage exceeded trip threshold.
Possible Causes
Deceleration too fast, regenerative energy too high, or input voltage too high.
Troubleshooting Steps
Extend deceleration time, install brake resistor, check supply voltage.
How to Reset
Fix cause and reset
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Source: Schneider ATV630 fault manual
Category: Electrical
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