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Section 2 Wiring and Mounting
B-17
2-4 Wiring
WARNING
Do not short-circuit the outputs to +24V. Doing so will cause the output to be always ON.
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-B lines to a DC power supply with more than 24VDC+10% or to an AC power supply
to avoid the danger of electric shock.
(Correct)
(Incorrect)
Brown
Green, White
Blue
Load
+24V
0V
F3SN-B
Receiver
Brown
Green, White
Blue
Load
+24V
0V
F3SN-B
Receiver
2-4-1 Power Supply Units
WARNING
DC power supply units must satisfy all of the conditions below so that the F3SN-B can comply with the applicable
standards IEC 61496-1, and UL 508.
•
The power supply voltage must be within specified ratings (24 VDC ± 10 %).
•
The power supply is connected only to the F3SN-B and to the devices related to the electro-sensitive protective
function of the F3SN-B, 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.
•
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
defined in UL508 (see “Remark”).
•
The power supply must conform to regulatory requirements and standards, regarding EMC and electrical
equipment safety, of the country where the F3SN-B is installed and where machinery will be operated. Example:
The EMC Directive (industrial environment) and the Low Voltage Directive in EU.
FG (frame ground terminal) must be connected to PE (protective earth) when using a commercially available
switching regulator.
[Remark]
The power supply must conform to the following requirement (1) or (2) regarding a secondary
circuit, in accordance with UL 508, to avoid a fire.
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,
– 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
shall be rated at not more than a value 4.2 amperes (for the power supply voltage of 24VDC)
Recommended power supply:
S82K (15 W, 30 W, 50 W, 90 W type) made by OMRON.
Certificate of UL Listing (UL508, Class2 Output) and CE Marked (EMC
and Low Voltage Directives).
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.
Summary of Contents for F3SN-B P Series
Page 10: ...A 3 1 2 4 b b OFF 300ms 1 b 9V Vs 2 4 1 2 5 2 1 mm...
Page 14: ...A 7 2 1 2 1 1 F3SN B F3SN B...
Page 17: ...A 10 2 1 3 D 0 2 3m 0 27m 3m L 2 tan10 L 0 087 m 2 1 4 F3SN B 2 F3SN B L D D L D 10 10...
Page 18: ...A 11 0 2 3m 0 54m 3m L tan10 L 0 18 m L D D 10 10...
Page 21: ...A 14 2 3 2 3 1 F3SN B R36 mm 52mm R 3 6 R 3 6 R 3 6 80mm 80mm...
Page 23: ...A 16 1 2 3 2...
Page 30: ...A 23 1 2 F3SN B 1 3 5 OFF 1 F3SN B P70 4 9 24V OFF 5 6 1 3 3 2 3 F3SN B 4...
Page 31: ...A 24 2 2 8 1 4 1 5 6 5 6 7 3 24V 2 3 1 4 1 2 2 2 0V RS 485 B RS 485 A 7 1 24V 2 2 4 2 NO...
Page 32: ...A 25 OFF OFF OFF ON OFF 25 s 160 200 s OFF OFF ON ON OFF 130 s ON...