Siemens SINAMICS S120 Commissioning Manual page 50

Preparation for commissioning
1.6 Powering-up/powering-down the drive system
Off responses
● OFF1
● OFF2
● OFF3
48
– n_set = 0 is input immediately to brake the drive along the deceleration ramp (p1121).
– When zero speed is detected, the motor holding brake (if parameterized) is closed
(p1215). The pulses are suppressed when the brake application time (p1217) expires.
Zero speed is detected if the actual speed drops below the threshold (p1226) or if the
monitoring time (p1227) started when the speed setpoint ≤ speed threshold (p1226)
has expired.
– Instantaneous pulse suppression, the drive "coasts" to a standstill.
– The motor holding brake (if parameterized) is closed immediately.
– Switching on inhibited is activated.
– n_set=0 is input immediately to brake the drive along the OFF3 deceleration ramp
(p1135).
– When zero speed is detected, the motor holding brake (if parameterized) is closed.
The pulses are suppressed when the brake application time (p1217) expires. Zero
speed is detected if the actual speed drops below the threshold (p1226) or if the
monitoring time (p1227) started when the speed setpoint ≤ speed threshold (p1226)
has expired.
– Switching on inhibited is activated.
Commissioning Manual, (IH1), 01/2011, 6SL3097-4AF00-0BP1
Commissioning Manual