Instruction Manual

2-28

Installation

2-6 BL-U1 Connections and Wiring

Installing and Wiring the Input and Output Jacks

* These appear in this order from left to right on the terminal.

• Use M3.0 screws for the terminal.

• The wiring should use crimp contacts as shown below.

 Wiring the trigger input

The trigger input is used to cause a BL/SR/RF Series device to begin reading.

The trigger input interval is on when 8.5 to 30 V DC is input.

The BL-U1 sensor power source can be used as the input power source.

Symbol Explanation Signal direction

TIM Trigger input

Input

+12 V OUT-

Sensor power source + side (+12 V DC, 300 mA) Output

Sensor power source + side (0 V) Output

COM OK/NG output common -

OK OK output Output

NG NG output Output

SDA RS-422A data sending + side / RS-485 + side

Output/ input-

output

SDB RS-422A data sending - side / RS-485 - side

Output/ input-

output

SG Signal ground -

RDA RS-422A data reception + side Input

RDB RS-422A data reception - side Input

TIM

Trigger input Sensor power source

(12 V DC, 300 mA)

OK/NG output RS-422A/RS-485

+12V OUT- COM OK NG SDA SDB SG RDA PDB

Round type

6.0 mm max.

Fork type

6.0 mm max.

Contact or

non-contact

8.5 to 30V DC

TIM +12V OUT–