Commissioning via the built-in BOP
5.6 Function commissioning
SINAMICS V20 Converter
102 Operating Instructions, 10/2019, A5E34559884-012
Setting parameters
P1215 Holding brake enable This parameter enables/disables holding brake function. The motor hold-
ing brake (MHB) is controlled via status word 1 r0052 bit 12.
= 0: Motor holding brake disabled (factory default)
= 1: Motor holding brake enabled
P1216 Holding brake release delay[s] This parameter defines period during which converter runs at minimum
frequency P1080 before ramping up.
Range: 0.0 to 20.0 (factory default: 1.0)
P1217 Holding time after ramp down [s] This parameter defines time for which converter runs at minimum fre-
quency (P1080) after ramping down.
Range: 0.0 to 20.0 (factory default: 1.0)
Connecting the motor holding brake
The motor holding brake can be connected to the converter via digital outputs (DO1/DO2).
An additional relay is also required to allow the digital output to enable or disable the motor
holding brake.
Potentially hazardous load
If the converter controls the motor holding brake, then a commissioning may not be carried
out for potentially hazardous loads (e.g. suspended loads for crane applications) unless the
load has been secured.
It is not permissible to use the motor holding brake as operating brake. The reason for this
is that generally it is only designed for a limited number of emergency braking operations.
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