Siemens SINAMICS S110 - Page 45

Commissioning preparations for PROFIBUS
2.4 Powering-up/powering-down the drive system
Function Manual
Function Manual, 01/2011, 6SL3097-4AB10-0BP3
43
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
(p1215). The pulses are suppressed when the brake application time (p1217) expires.
Zero speed is detected when the actual speed drops below the speed threshold
(p1226) or once the monitoring time (p1227) started when speed setpoint ≤ speed
threshold (p1226) has expired.
● OFF2
– Immediate 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
(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 when the actual speed drops below the speed threshold (p1226) or
once the monitoring time (p1227) started when speed setpoint ≤ speed threshold
(p1226) has expired.
– Switching on inhibited is activated.
Control and status messages
Table 2- 3 Power-on/power-off control
Signal name Internal control word Binector input PROFdrive/Siemens
telegram 1 ... 111
0 = OFF1 STWA.00
STWAE.00
p0840 ON/OFF1 STW1.0
0 = OFF2 STWA.01
STWAE.01
p0844 1. OFF2
p0845 2. OFF2
STW1.1
0 = OFF3 STWA.02 p0848 1. OFF3
p0849 2. OFF3
STW1.2
Enable operation STWA.03
STWAE.03
p0852 Enable operation STW1.3