Wiring; Wiring Precautions - Omron F3SG series User Manual

4-5. Wiring

4-5-1. Wiring Precautions

Double or reinforced insulation from hazardous voltage must be applied to all input and
output lines. Failure to do so may result in electric shock.
When using PNP output, connect the load between the output and 0 V line. When using
NPN output, connect the load between the output and +24 VDC line.
Connecting between the output and a different power supply line from the above line will
result in dangerous condition because the operation mode of safety output is reversed to
"Dark-ON".
When using the PNP output, do not ground +24 VDC line. When using the NPN output,
do not ground 0 V line. Otherwise, a ground fault may turn the safety output ON, resulting
in a failure of stopping the machine.
Configure the system by using the optimal number of safety outputs that satisfy the
requirements of the necessary safety category.
Do not connect each line of F3SG-R to a DC power supply higher than 24 VDC+20%.
Also, do not connect it to an AC power supply.
Failure to do so may result in electric shock.
Make sure to perform wiring while the power supply is OFF.
[PNP Output]
F3SG
Receiver
[NPN Output]
F3SG
Receiver
Brown
+24 VDC
Black, White
Load
Blue
0 VDC
Brown
+24 VDC
Load
Black, White
Blue
0 VDC
Wiring/Installation
Brown
F3SG
Load
Receiver
Black, White
Blue
Brown
Black, White
F3SG
Receiver
Load
Blue
+24 VDC
0 VDC
+24 VDC
0 VDC
E
F3SG-R
163
User's Manual