4B HTAS1V34 Manual de operação - Página 17
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Turn the sensing range adjustment screw fully clockwise while machine is running, the green LED
should flash consistently. Slowly turn the sensing range adjustment screw counter-clockwise until the
flashing becomes irregular. Then turn it slowly clockwise until a regular flashing pattern appears, add an
extra 1/8th turn clockwise for range compensation.
1. Check that the unit is correctly installed (see standard wiring diagram).
2. Check that the distance between the target and the sensing face of the WDA sensor is within the
minimum distance specified.
3. Start up machine, the green LED shows the state of the pulsed output and flashes once for each
target detected. The LED should be off when no target is detected, if not, reduce the sensitivity
4. If the sensor is not performing as expected, contact 4B.
If the system does not alarm as required, then remove the machine from service until the problem
has been diagnosed and corrected.
FAULT
LED on alignment
sensor does not
flash
LED on alignment
sensor flashes
excessively
Sensor will not
calibrate
SENSOR CALIBRATION
TESTING AND COMMISSIONING
TROUBLESHOOTING GUIDE
CAUSE
1. Sensor too far away from target
2. Sensor adjustment incorrect
3. Faulty wire connection
4. Object stuck to magnetic face of
the sensor, causing interference
1. Sensor too close to target
2. Sensor adjustment incorrect
3. Interference in wiring
Wiring issue
WARNING
1. Move sensor closer to target
2. Turn sensitivity control clockwise
3. Check wiring
4. Remove object
1. Move sensor away from target
2. Turn sensitivity control counter
3. Use shielded cable and rigid
1. Make sure that the YELLOW/
2. Make sure that the YELLOW/
PAGE 17
REMEDY
clockwise
conduit
ORANGE wire is connected to the
RED wire
ORANGE wire is connected to the
correct input on the controller