KEYENCE N-400 - Manual (Page 31)

Chapter 2 Installation Procedure
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2
TIM +12V OUT– COM OK NG SDA SDB SG RDA RDB
Trigger
input
Power supply
for sensors
(12 VDC, 300 mA)
OK/NG output RS-422A/RS-485
2.4.4 Terminals of I/O terminal block and wiring
* Viewed from the left of the terminal block
• M3.0 screws are used for the terminal block.
• Use the following crimp terminals for connections.
Connecting trigger input
The trigger input allows the BL series to start reading bar codes (turn on the laser
beam).
The trigger input is turned ON when 8.5 to 30 VDC input is activated between the
trigger input terminals.
The BL-U1 power supply for the sensor can be used as the input power supply.
Symbol Description Signal direction
TIM Trigger input Input
Input
+12 V OUT + terminal of power supply for sensor (12 VDC, 300 mA) Output
– terminal of power supply for sensor (0 V) Output
COM Common terminal for OK/NG output —
OK OK output Output
NG NG output Output
SDA + terminal for RS-422A data transmission/ Output,
RS-485 + terminal Input/Output
SDB – terminal for RS-422A data transmission/ Output,
RS-485 - terminal Input/Output
SG Signal ground —
RDA + terminal for RS-422A data reception Input
RDB – terminal for RS-422A data reception Input
6.0 mm or
less
Round-shape
6.0 mm or
less
Fork-shape
TIM +12V OUT–
8.5~30VDC
+
+
Contact or
solid-state