100 - 23/May/97
FIG. 4.3 - DBM-PS Power Supply - DBR FAULT red LED on
Recovery Fault
YES
Too much recovery
energy. Undersize the
duty cycle or oversize
the recovery resistance
NO
NO
Correctly tighten at
3 Nm (26 Lb in) the
Bus Bars
Bus Bars tightening
OK?
YES
3-phase input
overvoltage
3-phase input voltage
> 265 V?
NO
YES
Replace the recovery
resistance
YES
Recovery
resistance open or
short-circuited?
NO
Connect the
recovery resistance
Recovery
resistance
connected?
Red LED DBR FAULT = ON
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