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F3SJ-E/B
User’s Manual
Introduction
E
For the F3SJ-E/B 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 20 ms or longer
• Must satisfy output characteristic requirements for class 2 circuit or limited voltage current
circuit defined by UL 508. Refer to p.83 for details.
• Must comply with laws and regulations, regarding EMC and electrical equipment safety, of the
country or region where the F3SJ-E/B is used (Ex: 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
To use the F3SJ-E/B in PSDI mode (Reinitiation of cyclic operation by the protective equipment),
you must configure an appropriate circuit between the F3SJ-E/B and the machine. For details
about PSDI, refer to OSHA1910.217, IEC 61496-1, and other relevant standards and
regulations.
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 F3SJ-E/B in environments where flammable or explosive gases are present.
Doing so may result in explosion.
Perform daily and 6-month inspections for the F3SJ-E/B. Otherwise, the system may fail to work
properly, resulting in serious injury.
Do not use radio equipment such as cellular phones, walkie-talkies, or transceivers near the
F3SJ-E/B.
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