Siemens SINAMICS S110 - Fig. 2-78 2811 - Basic Functions, STO (Safe Torque Off), safe pulse cancellation

Safety Integrated
Function diagrams
2-839
© Siemens AG 2012 All Rights Reserved SINAMICS S110 List Manual (LH7), 06/2012, 6SL3097-4AP10-0BP3
Fig. 2-78 2811 – Basic Functions, STO (Safe Torque Off), safe pulse cancellation
- 2811 -
Function diagram
87654321
fp_2811_98_eng.vsd
DO: SERVO
SINAMICS S110
26.04.11 V04.04.00
Safety Integrated - Basic Functions, STO (Safe Torque Off), Save Pulse suppression
Power Module
0 = Request Pulse suppression P2
PM-IF
Request
pulse
suppression
P1
[2810.8]
M
~
U
V
W
+ Vdc
-Vdc
Gating unit
Gating unit
1
&
r9872.1
1 = STO active" for sequence control
1 = STO active on Control Unit
r9772.1
+5 V
to SBC
Save Pulse
suppression
+5 V
Upper IGBT
bridge halve
Shutdown path from P1
0 = STO_P1
Shutdown path from P2
0 = STO_P2
DIAG_L
DIAG_U
Lower IGBT
bridge halve
<1>
<1>
1
2 ms
STO: Safe Torque Off
<1> Transistors inhibited for a "0" signal.
to SBC
[2804.2]
1 = STO on P2 active
[2804.5]
[2802.1]
[2814.2]
[2802.1]
[2814.2]
[2814.2]
[2814.2]
[2810.8]