Electrical installation
Functional safety
Extended Safety
Connection diagram
①
"
K
L
Fig. 14: Sample circuit
Name
Meaning
S1
Passive sensor with channel A and B
Protected installation for category 4 according to EN ISO 13849-2 required.
S2
S3
Active sensor: Higher-level safety controller
S4
Active sensor: Lightgrid
①
Safe output to upstream safety control
②
External 24-V-supply of the safe output and the clock outputs (SELV/PELV)
③
Reference switch; see function "SHOM"
④
Reference switch; see function "SHOM"
⑤
Button for restart acknowledgement
⑥
Button for fault acknowledgement
K
To "AIS" connection of next device
L
To "AIE" connection of next device
164
X82
CLA
CLB
"
O1A
O1B
DC 24 V
SELV PELV
GS
24S
+24 V
GS
GSI
IRS
IRL
⑤
"
AIS
AIS
⑥
AIE
AIE
X83
I1A
I1B
GS
GI1
"
I2A
I2B
GS
GI2
"
I3A
I3B
GS
GI3
"
I4A
I4B
GS
GI4
"
②
/
0 V
③
SHOM
④
SHOM
S1
S2
S3
S4