Omron F3SG-PG Series, User Manual, Page: 12 / 473

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F3SG-SR/PG
User’s Manual
Wiring
When using the PNP output, connect the load between the output and 0 V line. When using the
NPN output, connect the load between the output and +24 VDC line. Connecting the load
between the output and a different power supply line from the above line will result in a
dangerous condition because the operation mode of safety outputs are reversed to "Dark-ON".
When using the PNP output, do not 24 VDC line. When using the NPN output, do not
ground 0 V line. Otherwise, a ground fault may turn the safety outputs 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 the F3SG-SR/PG to a DC power supply of 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.
Do not use the output signal of the auxiliary output or IO-Link output for safety applications.
Failure to do so may result in serious injury when the F3SG-SR/PG fails.
For the F3SG-SR/PG to comply with IEC 61496-1 and UL 508, the DC power supply unit must
satisfy all of the following conditions:
• The DC power supply operates within the rated power voltage (24 VDC ± 20%).
• The DC power supply has tolerance against the total rated current of devices if it is connected
to multiple devices.
• The DC power supply complies with EMC directives (industrial environment).
• Double or reinforced insulation is applied between the primary and secondary circuits.
• The DC power supply has an automatic recovery type of overcurrent protection characteristics.
• Output holding time is 20 ms or longer.
• The DC power supply satisfies output characteristic requirements for class 2 circuit or limited
voltage current circuit defined by UL 508. Refer to 5-4-2. Power Supply Unit .
• The DC power supply complies with laws and regulations, regarding EMC and electrical
equipment safety, of the country or region where the F3SG-SR/PG is used. (For example, in
EU, the power supply must comply with the EMC Directive and the Low Voltage Directive.)
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.
Extension of the cable must be within a specified length. If it isn't, safety functions may not work
properly, resulting in danger.