Lenze E94ARNE Regenerative power supply - Manual (Page 29)

EDS94ARNExxxx EN 2.3 - 06/2014
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9400 regenerative power supply module | Parameter setting
Regenerative power supply module application
Parameterising the brake chopper/brake resistor
3.1.3.4 DC-bus overvoltage
If the braking energy is too high and the DC-bus voltage therefore exceeds the overvoltage
threshold which results from the mains setting in C00173 , the "Overvoltage in the DC bus"
error message is output and the response set in C00600 is activated (default setting:
"Trouble").

Note!
For hoist applications the "Fault" response should be selected in C00600 (in
combination with an emergency stop via mechanical brakes).