MN301450 Rev A
9
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Wiring
Step Eight
ULTRASONIC AND VIBRATION SWITCHES
The LU10-14_5 and LZ12-14_5 switch can be wired normally open or normally closed for your application
requirement. Each ultrasonic switch requires 12 - 36 VDC power while each vibration switch requires 12-30
VDC power 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).
Sensor Power
[RED & BLK wires] / 30 VDC max.
8mA ±1mA Dry / 22 ±mA Wet
Relay Rating
[GRN & WHT wires] / 60VA
Maintenance Alarm
[YEL wire] / NPN Transistor / 10mA Max.
Sensor Power
[RED & BLK wires] / 30 VDC max.
8mA ±1mA Dry / 22 ±mA Wet
Relay Rating
[GRN & WHT wires] / 60VA
Maintenance Alarm
[YEL wire] / NPN Transistor / 10mA Max.