F39-JC3B Omron, F39-JC3B Datasheet - Page 32

• Manufacturer Part Number: F39-JC3B
• Description: Safety Light Curtain
• Manufacturer: Omron

Specifications of F39-JC3B

• Light Curtain Type: Safety
• Accessory Type: Double-Ended Connector Cable
• For Use With: F3SN Series Safety Light Curtain
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

2-4 Wiring
2-4-1 Power Supply Units
[Remark] The power supply must conform to the following requirement (1) or (2) regarding a secondary
1) The power supply includes a limited voltage/current circuit supplied by an isolating source like the
secondary winding of an isolating type transformer. And, in the limited voltage/current circuit,
2) The power supply includes a Class 2 circuit supplied by an isolating source that complies with the
requirement in the Standard for Class 2 Power Units, UL 1310, or the requirements in the Standard for Class
2 and Class 3 Transformers, UL 1585.
Do not short-circuit the outputs to the +24V. Doing so will cause the output to be always ON, creating a hazardous
situation. Connect the 0V line of the power supply directly to protective earth to prevent the earth fault. Otherwise the
earth fault causes the outputs to be ON. (Chapter 2-4)
Connect loads between the output and 0V line. (PNP output)
Connecting loads between the output and +24V line will reverse the operation mode and the machine will be ON
when it is light-interrupted.
Always use the two OSSD outputs to configure the safety system.
Using only one OSSD of the safety system may result in serious injury when there is an output circuit failure.
Do not connect any of the F3SN-A lines to a DC power supply with more than 24VDC+10% or to an AC power supply
to avoid the danger of electric shock.
DC power supply units must satisfy all of the conditions below so that the F3SN-A can comply with the applicable
standards IEC 61496-1, and UL 508.
FG (frame ground terminal) must be connected to PE (protective earth) when using a commercially available
switching regulator.
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•
•
•
•
•
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– the current available is limited to a value not exceeding 8 A (including the case of short-circuit), or
– a secondary fuse or other such secondary circuit protective device used to limit the available current
Recommended power supply: S82K (15 W, 30 W, 50 W, 90 W type) made by OMRON.
shall be rated at not more than a value 4.2 amperes (for the power supply voltage of 24VDC)
function of the F3SN-A, such as a safety controller and muting sensors, and it has enough rated current for all
the devices. The power supply must not be connected to other devices or machines.
defined in UL508 (see “Remark”).
equipment safety, of the country where the F3SN-A is installed and where machinery will be operated. Example:
The EMC Directive (industrial environment) and the Low Voltage Directive in EU.
The power supply voltage must be within specified ratings (24 VDC ± 10 %).
The power supply is connected only to the F3SN-A and to the devices related to the electro-sensitive protective
The power supply uses double or reinforced insulation between the primary and secondary circuits
The power supply automatically resets overcurrent protection characteristics (voltage drop).
The power supply maintains an output holding time of at least 20 ms.
The power supply must have output characteristics of Class 2 Circuit of Limited Voltage-Current Circuit as
The power supply must conform to regulatory requirements and standards, regarding EMC and electrical
circuit, in accordance with UL 508, to avoid a fire.
F3SN-A
Receiver
(Correct)
Brown
Green, White
Blue
Load
Certificate of UL Listing (UL508, Class2 Output) and CE Marked (EMC
and Low Voltage Directives).
+24V
0V
WARNING
WARNING
F3SN-A
Receiver
Section 2 Wiring and Mounting
(Incorrect)
Green, White
Brown
Blue
Load
+24V
0V
B-25