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8
MN301420 rev A
Wiring
Step Seven
ULTRASONIC AND VIBRATION SWITCHES
(LU10-1305, LU10-1325, LZ12-1405):
The LU10-13_5 and LZ12-1405 switch can be wired normally open or normally closed for your application
requirement. Each switch requires 12 - 36 VDC power (12-30 VDC, LZ12) to operate the sensor and switch
the relay. The relay output can be wired as a dry contact. All illustrations below identify a Dry switch state as
the normal position of the relay.
SWITCHING A NORMALLY OPEN DC LOAD:
The Red wire connects to Positive (+) of the power supply and the Black wire connects to Negative (-). The
LOAD can be attached to either the Green or White wires. Complete the circuit by either connecting the Green
to (+) VDC power or White to (-) VDC power (see illustration below).
SWITCHING A NORMALLY CLOSED DC LOAD:
The Black wire connects to Positive (+) of the power supply and the Red wire connects to Negative (-). The
LOAD can be attached to either the Green or White wires. Complete the circuit by either connecting the Green
to (+) VDC power or White to (-) VDC power (see illustration below
MAINTENANCE ALARM (LZ12 VIBRATION ONLY):
For optimum performance and proactive maintenance, the sensor automatically adjusts for coating, and if
necessary, outputs a preventative maintenance alarm. The Yellow wire is a NPN transistor designed to switch
when a build-up of material prevents the vibration switch from operating at its operational frequency. Use the
Yellow wire to identify when the Vibration switch requires cleaning (see the LZ12 manual for wiring
information).