Connections – KEYENCE LB-70(W) Series User Manual

Page 7

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7

Red

Black

Yellow

Brown

Blue

12 to 24 VDC power input

0 V

Laser emission control input

Alarm output (N.C.)

Core wire

Analog voltage output

Shielded wire

Laser emission remote
control terminals

CONNECTIONS

Laser emission control input

When the yellow and black cables are short-circuited, the laser beam
stops emitting temporally.
Analog output voltage just before the short-circuitting will be freezed.
This input is used when emitting laser beams alternatively to prevent
mutual interference, or when turning off laser beams in an emergency.

Alarm output (N.C.)

The alarm output is activated when the light quantity exceeds of falls
below a specified limit.

Laser emission remote control terminals

When the terminals are short-circuited, the LASER ON alarm LED on the
front panel lights and laser emission begins after 3 seconds.

When the terminals are opened, the LASER ON alarm LED on the front
panel turns off and laser emission stops.

* For shipping purposes, a short-circuit bar is inserted between the

terminals.

The black 0 V and shielded wire have a different electrical potential.
To avoid a malfunction due to excessive noise interference, do not
connect these two wires together.

CAUTION

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