Wiring
FQ2-S4 User’s Manual
2
Installation and Connections
43
I/O Signal Circuit Diagrams
Preventing Chattering
• The Sensor is equipped with an anti-chattering function, but if the chattering is 100 µs or longer, a faulty input may
occur. (Input signals of 99 µs or shorter are ignored. Signals of 100 µs or longer are treated as input signals.)
• Use no-contact output devices (e.g., SSR or PLC transistor output) for the input signals. If contacts (e.g., relay) are
used, chattering may cause the trigger to be input again during execution of a measurement.
Power Supply Specifications When a Switching Regulator Is Connected
Use a power supply that meets the following specifications. (The power supply is sold separately.)
Supply power from a DC power supply for which measures have been applied to prevent high voltages (e.g., a safety
extra low voltage circuit).
If UL certification is required for the overall system, use a UL Class II DC power supply.
Attaching the LED Warning Label
Attach the enclosed LED warning label to the cable or other location. The LED warning label must be attached
to a location that is readily visible from the Sensor.
12-6 LED Safety: p. 575
Item Description
FQ2-S4@@@@@ FQ2-S4@-@@@
Power supply voltage 24 VDC (21.6 to 26.4 V)
Recommended Power Supply S8VS-06024@ (24 VDC, 2.5 A) S8VS-01524@ (24 VDC, 0.65 A)
External power supply terminal screws M4 (tightening torque: 1.2 N·m)
GND (0V)
OUT0 (OR)
OUT1 (BUSY)
OUT2 (ERROR)
TRIG
IN0
IN1
IN2
IN3
IN4
IN5
IN0
IN1
IN2
IN3
IN4
IN5
TRIG
GND (0V)
OUT0 (OR)
OUT1 (BUSY)
OUT2 (ERROR)
PNPNPN
Brown
Power supply (24 VDC)
24 VDC
Yellow
Blue
Load
Purple
White
Black
Red
Orange
Light blue
Green
Gray
24 VDC
Pink
Blue
Yellow
Internal circuits
Internal circuits
Purple
White
Light blue Red
Green
Orange
Black
Gray
Load
Pink
Brown
Power supply (24 VDC)
Important
Important
Attachment Example
Warning Label
Warning Label
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