KEYENCE BL-180 - Manual (Page 10)

1.1 BL-180 Connections
2
1.1 BL-180 Connections
1.1.1 Wire colors and signal types
The following wires extend from the BL-180. Solder the required wires to a con-
nector to connect the BL-180 to a computer/controller.
1.1.2 Power supply wiring
• Be sure to match the polarities of the power supply when soldering the con-
nections. Reversing the polarities will damage the unit.
• Make sure that the power supply provides a stable 5 VDC ± 5%. If the power
supply does not function in the above range, it can damage the unit.
• Do not use a power cable longer that 2 meters. A long power cable can cause
a voltage drop, preventing the BL-180 from starting properly.
• If the power supply is UL rated, it must provide Class 2 output.
1.1.3 Wiring I/O
Trigger (TIM) input
The trigger input is used to signal the BL-180 to start reading (Start laser emis-
sion).
The trigger input is a non-voltage input (TTL input is also available).
Wire Color Symbol Description Signal Direction
Shield Shield Connect to ground (SG) ——
Purple RS-
232C SD (TXD) Send data Output
Brown RD (RXD) Receive data Input
Pink RS (RTS) Request to send (always on) Output
Blue CS (CTS) Request to receive Input
Black GND (SG)
Ground (common ground for
respective signals)
——
Yellow TIM Trigger input Input
White OK OK output Output
Gray NG NG output Output
Red + 5V + 5V power supply input Input
5VDC
BL-180
+5V Red
GND Black
+
CAUTION
GND
TIM Yellow
Black
5VDC
10K
Ω
4.7
K
Ω
BL-180
Internal circuit
With or
without relay