Power Supply Unit - Omron F3SJ-B0185P25-01TS User Manual

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Power Supply Unit

For the F3SJ-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 total rated current of devices if it is connected to multiple
devices
•Must comply with EMC directives (industrial environment)
•Double or enhanced 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 remarks)
•Must comply with laws and regulations, regarding EMC and electrical equipment safety,
of the country or region where the F3SJ-B is used (Ex: In EU, the power supply must
comply to the EMC Directive and the Low Voltage Directive.)
(Remarks)
To prevent a fire, the secondary circuit of the power supply must satisfy either of the following conditions in
accordance with UL 508:
•As with secondary winding of isolation transformer, there must be a limited current voltage circuit to
which isolated power supply provides power, and the "current is limited to 8 A max. (including short-
circuit)" or "circuit protection such as a fuse is used to limit the current, which has a rating of 4.2 A
max." (24 VDC power supply).
Recommended power supply: OMRON S8VS (30 W, 60 W)
These products are approved by UL listing (UL 508, class 2 power supply), CE marking compatible
(EMC/Low Voltage Directive).
•Class 2 power supply unit complying with UL 1310, or a circuit using class 2 transformer complying
with UL 1585 as a power supply.
Wiring/Installation
F3SJ-B
User's Manual
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