Omron F3SG-SRB Series User Manual

54
Chapter2 External Device Monitoring (EDM)
F3SG-SR
User’s Manual
System Operation and Functions
2-11. External Device Monitoring (EDM)
2-11-1. Overview
This function monitors if external relays (or contactors) operate normally to detect malfunctions, such as
welding, in the external relays. When the NC contact of the external relays is open before the safety
outputs switch from OFF to ON, the safety outputs remain in the OFF state. When the NC contact is not
open within the allowable delay time after the safety outputs switch from OFF to ON, the F3SG-SR enters
the LOCKOUT state.
 Basic wiring diagram
Perform wiring so that the specified voltage is applied to the RESET line via the NC contact of the
extenal relays. Refer to the table below for the specified voltage.
The external relays or contactors must have the direct opening mechanism or be force-guided ones.
• In Auto Reset mode
• In Manual Reset mode
F3SG-SRA 
F3SG-SRB 
PNP/NPN Voltage
PNP Vs-3 V to Vs
NPN 0 V to 3 V
+24 VDC
0V
PNP
KM1, KM2: External device
KM1
KM2
0V
+24 VDC
NPN
KM1
KM2
24V/0V (Brown)
RESET/EDM (Yellow) *
0V/24V (Blue)
F3SG-SR
receiver
F3SG-SR
receiver
24V/0V (Brown)
RESET/EDM (Yellow) *
0V/24V (Blue)
*When using a lockout reset switch, connect an NC contact switch to this line in the position
shown by the broken line.
+24 VDC
0V
PNP
S1
KM1, KM2: External device
KM1
KM2
0V
+24 VDC
NPN
S1
KM1
KM2
24V/0V (Brown)
F3SG-SR
receiver
RESET/EDM (Yellow)
0V/24V (Blue)
S1: Lockout or interlock reset switch
F3SG-SR
receiver
24V/0V (Brown)
RESET/EDM (Yellow)
0V/24V (Blue)

Omron F3SG-SRB Series Specifications

General

Brand	Omron
Model	F3SG-SRB Series
Category	Security Sensors
Language	English