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3 Function diagrams
3.10 Safety Integrated Basic Functions
SINAMICS G120C
390 List Manual (LH13), 04/2014, A5E33840768B AA
Fig. 3-60 2810 – STO: Safe Torque Off
- 2810 -
Function diagram
87654321
fp_2810_97_05.vsd
Safety Integrated Basic Functions
SINAMICS G120C
07.04.2014 V4.7
STO (Safe Torque Off)
T0
F01611 (P1)
F30611 (P2)
M
~
U
V
W
&
+5 V
<1>
[2802.1] DIAG_L
[2802.1] DIAG_U
<3>
<3>
=1
T0
<1>
<2>
<3>
SI FCP Timer
0.00 ... 9000.00 [h]
p9659 (8.00)
SI F-DI chg t P1
0.00 ... 2000.00 [ms]
p9650 (500.00)
Timer for forced
checking
procedure
A01699
"Shutdown
paths must
be tested"
Upper IGBT
bridge halve
Safe pulse
suppression
Gating unit
Lower IGBT
bridge halve
Gating unit
Shutdown
path from P2
0 = STO_P2
Monitoring for simultaneous occurrence
0 = Request pulse suppression P2
Switch-on delay starts when the "request pulse suppression P1" is withdrawn.
Redundant functions in the Processor 1 (P1) and Processor 2 (P2).
Transistors inhibited for a "0" signal.
STO: Safe Torque Off
1 = "STO active" for
sequence control
Shutdown path
from P1
0 = STO_P1
0 = Request Pulse suppression P1
SI F-DI chg t P2
0.00 ... 2000000.00 [µs]
p9850 (500000.00)
1 = STO active on Control Unit
SI status P1
r9772
r9772
.1
[2804.2]
1 = Shutdown
paths must
be tested
SI status P1+P2
r9773
r9773
.31
+24 V
1
1 = STOP A [2802.8]
&
1
<2>
Kl. 17
[2802.2]
[2804.2]
&
1 = Safety commissioning mode
CU DI status
r0722
r0722
.4
CU DI status
r0722
r0722
.5
Kl. 16
Processor 2
PROFIsafe enabled for
dbSI0 (p9601.2 = 0 and
p9601.3 = 1) (P1)
[2804.1]
&
0 = Select PROFIsafe
via STO
1 = STO cause:
selection PROFIsafe
[2804.1]
1 = STO cause: selection via
motion monitoring functions
[2804.2]
STO initiate
SI enable, functions integrated in the drive (p9601  0)
1
1 = STOP A [2802.8]
&
1
&
1 = Safety commissioning mode
&
1 = STO cause:
selection PROFIsafe
[2804.4]
1 = STO cause: selection via
motion monitoring functions
[2804.2]
PROFIsafe enabled for
dbSI0 (p9801.2 = 0 and
p9801.3 = 1) (P2)
0 = Select PROFIsafe
via STO
STO initiate
SI enable, functions integrated in the drive (p9801  0)
1 = STO selected on
P2
[2802.2]
[2804.4]
1
Enable STO via
terminals (P1)
1
1
Enable STO via
terminals (P2)
1
[2804.4]
[2825.8]
[2825.8]
[2800.3]
[2800.3]
1
1 = STO
selected on P1
Processor 1
&
&
1 = STO cause:
selection via terminal
[2802.2]
1 = STO cause:
selection via terminal
+5 V
r9772.0
r9772.20
r9772.17
r9772.18
r9772.7
r9872.17
r9872.0
r9872.20
r9872.18
r9872.7
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