Siemens Sinamics s120 Commissioning Manual page 78

Preparation for commissioning
2.8 Powering-up/powering-down the drive system
Off responses
● OFF1
– 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
● OFF2
– Instantaneous pulse suppression, the drive "coasts" to a standstill.
– The motor holding brake (if parameterized) is closed immediately.
– Switching on inhibited is activated.
● OFF3
– n_set=0 is input immediately to brake the drive along the OFF3 deceleration ramp
– When zero speed is detected, the motor holding brake (if parameterized) is closed.
– Switching on inhibited is activated.
Control and status messages
Table 2- 19 Power-on/power-off control
Signal name
0 = OFF1
0 = OFF2
0 = OFF3
Enable operation
78
(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.
(p1135).
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.
Internal control word
STWA.00
STWAE.00
STWA.01
STWAE.01
STWA.02
STWA.03
STWAE.03
Binector input
p0840 ON/OFF1
p0844 1. OFF2
p0845 2. OFF2
p0848 1. OFF3
p0849 2. OFF3
p0852 Enable operation
Commissioning Manual, (IH1), 07/2016, 6SL3097-4AF00-0BP5
PROFIdrive/Siemens
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STW1.0
STW1.1
STW1.2
STW1.3
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