Omron F3SG-R User Manual page 10

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.
Other
Do not try to disassemble, repair, or modify this product. Doing so may cause the safety functions
to stop working properly.
Do not use the F3SG-R in environments where flammable or explosive gases are present. Doing
so may result in explosion.
Perform daily and 6-month inspections for the F3SG-R as described in Chapter 6 Checklists.
Otherwise, the system may fail to work properly, resulting in serious injury.
Do not use the F3SG-R in environments where strong electromagnetic field may be produced.
Doing so may cause the safety functions to stop working properly.
F3SG-4RA-25-02TS
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User's Manual