KEYENCE BL-180 - Manual (Page 91)

Power Supply BL-U1
85
1.4 Function and wiring on the I/O terminal block
The above list starts from the left edge terminal on the terminal block and sequen-
tially goes to the right.
• M 3.0 screws are used on the terminal block.
• Use the clips shown below when wiring.
Wiring the trigger
input The trigger input signals the BL series to start reading.
Turn on the trigger input by supplying 8.5 to 30 VDC between the trigger input ter-
minals.
You can use the “power supply for sensors” terminals of the BL-U1 as the input
power supply.
Symbol Description Signal Direction
TIM Timing input
Input
Input
+12V OUT
Power supply for sensors (+) (+12 VDC,
300 mA)
Output
Power supply for sensors (-) (0 V) Output
COM Common for OK/NG output ——
OK OK output Output
NG NG output Output
SDA Send RS-422A data (+)/RS-485 (+) Output/Input and output
SDB Send RS-422A data (-)/RS-485 (-) Output/Input and output
SG Signal ground ——
RDA Receive RS-422A data (+) Input
RDB Receive RS-422A data (-) Input
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
6.0 mm or
less
Round-shape
6.0 mm or
less
Fork-shape
TIM +12V OUT–
8.5~30VDC
+
+
Contact or
non-contact