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SE-Power FS STO-manual vers. 1.6 en.12.08.2015
5.3
Typical circuits
5.3.1
Safe Torque Off (STO)
1 Servo drive with safety module
(only relevant connections illustrated)
2 Emergency stop switch
3 Protective door
4 Light curtain
5
Safety switching device
Figure 7:
Connection of the SE-Power FS Safety Module STO, example of single-phase
servo drive SE-Power FS
1
2
3
4
5
L230VAC
N230VAC
PE
24VDC
T1
1
2 7 8
9
L1
PE
+
2
4
V
GND24
V
N
-X9
21
9
DIN4
DIN5
-X1
1
3
2 4
S
T
O
-A
S
T
O
-B
0V
-B
0V
-A
-
X
4
0
Ou
tp
u
t
P
L
C
:
Ou
tp
u
t
sta
g
e
e
n
a
b
le
Ou
tp
u
t
P
L
C
:
S
e
rvo
d
rive
e
n
a
b
le
Only the relevant connections are drawn!
Without cross-circuit detection!
0VDC
5
6
C1
C2
In
p
u
t
P
L
C
:
S
a
fe
ty
fe
e
d
b
a
ck
T1
S1
emitter
receiver
O
SSD
1
O
SSD
2
S1
S1
S1
Safety
switching
device
1
3
2
4
1
3
4
2
1
3
4
2
1
3
4
2
or
or
Afag SE-Power FS
