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ROUBLESHOOTING
Reversed Sensor Input Indication
(Red S in LED goes off when object is
sensed):
1. Some sensors provide the option of output activation when they sense
or do not sense an object. Having the sensor set up to produce an
output when it does not sense an object will result in reversed sensing
conditions. The MX001 expects to receive an active output signal from
the sensor (source voltage/current or switch closure) when the object to
be scanned is being sensed. Review the documentation that came with
your sensor to learn what type of output it provides and how to configure
it.
2. Some sensors that provide switch closure type output provide both
normally open (NO) and normally closed (NC) switched outputs. If the
sensor as connected is providing a reversed sensing condition (switch
closure when no object is being sensed), disconnect the switched
output used and connect the other switched output in its place.
3. If the sensor in use provides an output only when an object is not being
sensed and cannot be configured otherwise, contact Metrologic for
special instructions on how to adapt to this type of sensor.
Erratic Sensor Operation:
1. Check the sensor wiring for correct connection and security at the
sensor terminal block. (wires must be stripped before insertion into the
terminal block and terminal block screws must be tight, clamping the
stripped wire firmly in the block.)
2. Check the positioning of the sensor making sure it is oriented correctly
and not dirty.
3. Check sensor gain/sensitivity adjustments for correctness. Most sensors
provide this adjustment to adapt to various sensing conditions. Review
the documentation that came with your sensor to learn how to make this
adjustment correctly. If this adjustment is made incorrectly, the sensor
will act erratically.