KEYENCE LB-1000(W) - Manual (Page 8)

8
CONNECTIONS
■ Description of terminals
3 Earth ground terminal
5 Alarm output (NPN open-collector)
Outputs if light quantity is insufficient or excessive, or when no target
is present in the operating range.
6 AUTO ZERO input
Connecting this terminal to a GND terminal (4, 0, or B) resets the
analog voltage output to 0 V (12 mA for current output).
9 Analog current output
Current of 4 to 20 mA relative to full measuring range is output.
A Laser emission stop input
Disconnecting this terminal from a GND terminal (4, 0, or B) stops
laser emission. Use this terminal in an emergency to stop laser
emission. (Output will be retained at 12 V.)
C Synchronous (timing) input
Connecting this terminal to a GND terminal (4, 0, or B) permits
timing input. Laser emission will stop, and the analog output value just
prior to timing input will be retained. (DIP switch 2 of the controller
must be set to MAIN.)
D Synchronous (timing) output
When using 2 sensors (for thickness measurement, etc.), use this
terminal to prevent mutual interference. It allows 2 sensors to
alternately emit a laser beam at oscillation output of 30 Hz. (Set DIP
switch 2 of one controller to MAIN, and the other to SUB.)
LB-1001/1101/1201
* GND terminals
4, 0, and B
are connected
internally.
LB-1001W/1101W/1201W
CAUTION
Be sure to confirm
the model number.
Be sure to confirm
the model number.
CAUTION
CAUTION
* GND terminals
4, 0, and B
are connected
internally.
CAUTION