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S
ENSOR
S
UPPORT
“Universal” Self-contained Sensors That Provide Single
Pole/Double Throw (SPDT) Relay Outputs for Both Object Sensing
and Sensor Alarm
1. Make sure the “universal” sensor can operate on +12 volts DC at 200ma or
less. If so, then the MX001 box can supply the +12 volts necessary to
power the “universal” sensor.
2. Make sure power is not being applied to the unit.
3. Open the terminals in the sensor terminal block by turning each screw
counterclockwise until there is enough space to insert wires.
4. Strip off 2 ¼ inches of the sensor cable’s outer jacket.
5. Strip the insulation off each cable wire ¼ of an inch.
6. Feed the sensor cable through the small strain relief.
7. Insert the sensor’s +DC power input wire into the +12V OUT terminal and
secure the wire by turning the terminal’s screw clockwise. (Refer to the
MX001 box or to figure 24 for the order of the terminals for the sensor
wires.)
8. Insert the sensor’s -DC or common power input wire and both the object
sense and alarm relay output common signal wires into the COMMON
terminal and secure all three wires.
9. Determine from the literature supplied with your sensor which sensor relay
output makes contact with its common terminal when an object is sensed. If
the output cannot be determined, go on to Step 10. Otherwise, skip to Step
11.
10. Temporarily apply power to the MX001 box to activate the sensor and then
determine with a continuity tester or ohm meter which relay output (the
normally closed [NC] or the normally open {NO] output) makes contact with
the COMMON terminal when the sensor “sees" the object to be scanned.
11. Remove any power applied to the MX001 (in Step 100 and connect and
secure the “sense” relay output wire previously determined to the S IN-
terminal. (The other sense relay output wire may be cut off or connected to
the MX001 COMMON terminal if desired).