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GFK-2734 Chapter 6 Connection examples for the safe relay outputs and the safety-related segment circuit
6.6
Safety-related segment circuit
When implementing the safety-related segment circuit, two-channel parameterization of
the output is required. This means setting the following parameters for channel 1 and
channel 2: "Assignment: used" and "Output: two-channel".
Observe the notes in the document for the safety-related segment circuit in the
VersaPoint system (see Section "Ordering data: Documentation" on page 11-9).
IL
PWR
U
S
U
M
GND
FE
+
U
M
UM
UM
E
PWR IN/2-F
PWR IN/2-F
1
2
1
2
1
1
1
1
1
1
2
2
2
2
2
3
3
3
3
3
4
4
4
4
4
+
U
M
Figure 6-5
Internal and external wiring of the IC220SDL840 for the use of the safety-
related segment circuit
IC220SDL840
1.2
3.1
(U )
1.1
M
1.3
3.2
OUT1_Ch1
OUT1_Ch2
3.3
D
1
0
2
IN1
2
1
2
1
1
1
2
2
2
3
3
3
4
4
4
GND*
IL SAFE
4.1
(U )
S
U (IL SAFE)
S
U
M
GND
FE
4.2
4.3
FS
1
1
2
IN2
1
2
1
2
1
2
1
1
1
1
1
1
2
2
2
2
2
2
3
3
3
3
3
3
4
4
4
4
4
4
6
77220012
6-17
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