Siemens SINAMICS Series Operating Instructions Manual page 582

Descriptions of functions
10.18 Switching on auxiliary circuits
Figure 10-65 Operational brake (p50080 = 2), brake opening time (p50087) negative
Footnotes for the two figures above
<1> Mechanical deceleration of drive by means of operational brake
<2> Drive coasting down; "Close holding brake" first applied when n < nmin
<4> Here, motor works against the brake, which is still closed (p50087 negative)
<5> Time for brake to be closed, during which motor continues to apply torque (p50088)
Figure 10-66 Holding brake (p50080 = 1), brake opening time (p50087) negative
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SINAMICS DCM DC Converter
Operating Instructions, 12/2018, A5E34763375A