Omron F3SG series User Manual page 11

Do not connect each line of F3SG-R 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 auxiliary output for safety applications. Failure to do so may result in serious
injury when the F3SG-R fails.
For the F3SG-R to comply with IEC 61496-1 and UL 508, the DC power supply unit must satisfy
all of the following conditions:
• Must be within the rated power voltage (24 VDC ± 20%)
• Must have tolerance against the total rated current of devices if it is connected to multiple
devices
• Must comply with EMC directives (industrial environment)
• Double or reinforced insulation must be applied between the primary and secondary circuits
• Automatic recovery of overcurrent protection characteristics
• Output holding time must be 20ms or longer
• Must satisfy output characteristic requirements for class 2 circuit or limited voltage current
circuit defined by UL508. Refer to 4-5-2. Power Supply Unit.
• Must comply with laws and regulations, regarding EMC and electrical equipment safety, of the
country or region where the F3SG-R 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 function may not work
properly, resulting in danger.
Settings
Some settings of functions or the Setting Recovery function configurable with the Configuration
Tool may increase risks. Make sure the Responsible Person conduct a thorough risk assessment
analysis before managing and changing the settings. Unintended changes to the settings may
cause a person go to undetected, resulting in serious injury.
After completion of teach-in, check that the configuration have been properly done.
E
F3SG-R
ix
User's Manual