Programmable Parameters
All adjustments made to these parameters are stored in memory and are retained when power is removed. To
enter programming mode press and hold the
P/-
key for several seconds, the LED intensity setting will be
displayed. Press and release the
P/-
key to scroll through the various settings. Press and release the
T/+
key
to change a particular setting. Press and hold the
P/-
for several seconds to return to the normal intensity
display mode. The user programmable items are described below:
.
LED Intensity Level (U)
The LED intensity is indicated on the display as U1, U2 and U3 for low, medium and high intensity.
Press and release the T/+ key to to ggle through the 3 intensity levels. The def ault setting is U2,
medium intensity.
Hysterisis Level (H)
The hysterisis setting is indicated by H0 through H9. The hysterisis level is how far below the
threshold the signal must fall to de-activate or un-detect. The hysterisis can be set from 0 to 9. For
example, if the threshold is set at 25 and the in tensity exceeds 25, the sensor will detect and activate
its output. With the hysterisis set to 5, the signal must drop to 20 to un-detect. This feature is useful
in cases where there may be variation within a target that might cause the intensity to drop below the
threshold slightly; the hyster isis allows the out put to re main activated until th e level dro ps
significantly. Press and release the T/+ key to change the hysterisis setting. The default setting is 2.
Discrete Output Configuration
This setting allows the user to select either normally open (no) or normally closed (nc) configuration.
The normally open configuration de -activates the output during no rmal un-detect operation, and
activates the output upon detect. The norm ally closed configuration activates the output during
normal un-detect operation, and de-activates the output upon detect. Press and release the T/+ key to
toggle through the selections. Default is normally open.
Caution:
The discrete output must not be connected to outputs from other sensors (i.e. outputs from
multiple sensors must not be connected in parallel). Parallel connections may damage sensor
output circuitry.
Extend Output Pulse (P)
This feature allows extending the minimum length of time that the discrete output remains active following
target detection. The sensor response can be in the 100
μ
s (microsecond) range, i.e. a target can move
through the sensing range in 100
μ
s and the discrete output would active for only that duration. A slower
acquisition system (PLC) may not sample its inputs at a fast enough rate to capture the signal. The discrete
output pulse can be extended from 0 to 90 ms (milliseconds) in 10 ms increments as indicated by P0 though
P9 on the display. Press and release the
T/+
key to toggle through the selections.
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