E3X Datasheet, PDF (38/64 Pages) Omron Electronics LLC – Optical Fiber Photoelectric Sensor

E3X
Self-diagnostic Function
With this function, the E3X checks changes in environmental condi-
tions (especially a change in the ambient temperature) and
self-diagnoses the resistance against the changes. The result is
shown by the indicators or an output signal.
Stable Operation Indicator
(Green Indicator)
Light Reception Indicator
(Red Indicator)
E3X
Displays
• Stable Operation Indicator: Changes in environmental
conditions (changes in the ambient temperature, the operating
voltage, or the volume of dust) are checked and the resistance
against them are self-diagnosed. The result is shown via the
indicator.
• Light Reception Indicator: The amount of light received is
indicated by this indicator.
Output
• The resistance against changes in environmental conditions is
indicated by the indicator and the result is output.
Amount of
light
1.2
1
0.8
Operating level x 1.2
Operating level
Operating level x 0.8
Control output ^ON
(L-ON) OFF
0.3 s min.
0.3 s min.
ON
Self-diagnostic
output* ^OFF
ÈÈ ^{ÍÍÈÍÍÈÍÍÈÍÍÈÍÍ} ÈÈÈ Indicator Green
ÈÈ ÈÈÈÈ ÈÈÈ _{Tip of the fiber connected}
ÉÉÉÉÉ _{to the light source side in}
ÉÉÉÉÉ ^{the SET mode}
Flashing
Red
Green
light ON
Green
Flashing
*If the self-diagnostic output is ON when the sensing object is
moving at low speed, use the E3X with an ON-delay timer circuit.
Remote Tuning/Remote Bank Function (E3X-T21)
Remote Tuning Function
Basically, the method of remote tuning is same as that of sensitivity adjustment. When the remote tuning function of the E3X is used, the E3X is
tuned with the remote tuning input signal instead of the tuning button which has to be pressed.
1. Set the mode selector to RUN.
2. The following signal conditions must be given as remote
tuning input conditions.
Brown +V
Black; control output
Orange; self-diagnostis
output
Purple; remote
bank selection
Pink
Blue 0 V
If no remote tuning is done, cut off the purple wire at its
source or connect the pink wire to the positive terminal
of the power supply.
3² 8