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Indicator
Symptom
diagram
Area learning
error
Red/Yellow
blinking fast
(0.1 s intervals)
Green
Initializing
blinking
(0.5 s intervals)
* Only
OC-907C T
Signal
Green
blinking
saturation
(0.5 s intervals)
* Only
OA-607 T
Sensor failure
Green
blinking fast
(0.1 s intervals)
Position error
Orange/Green
blinking
(0.5 s intervals)
2 times
0.7 s
Wiring error
Twice Red
blinking
(0.1 s interval)
(0.7s unlit)
2 times
0.7 s
Communication
error
Twice Orange
blinking
(0.1 s interval)
(0.7s unlit)
20
Procedures
Possible cause
Power ON
Detection area has not been saved
Setting by app
Change the sensor position
Improper wiring of activation output
(Yellow wires)
Improper wiring of door equipment
ON/OFF/HOLD switch
Auto area
learning
Not complete the door cycle within a
certain time
Improper stall relay contact of OC-907C T Verify proper setting
Abnormal door position recognition
Power ON
Initializing
Operation
Signal saturation
Sensor failure(self-monitoring)
Any
Sensitivity too low
Door opened to opposite side
Door opened over fully opened angle
Operation
Abnormal door position recognition
Executed auto configuration except the
Auto
door fully close
configuration
Improper wiring of motor/BG input
(at start)
(Red wires)
Improper wiring of activation output
(Yellow wires)
Improper wiring of stall output
(Green wires)
Improper wiring of test input
(Pink wires)
Not match setting between sensor and
Auto
door controller
configuration
(at end)
Door start opening while stall is output
Not complete the door cycle within a
certain time
Abnormal door position recognition
No connection of motor/BG input (Red
wires) or close switch input (White wires)
Improper wiring of motor/BG input
(Red wires)
Operation
Improper of setting either motor/BG input
or close switch input
Improper wiring loop harness or pass
Any
through harness
Possible countermeasure
Execute auto area learn
Verify proper wiring
Verify proper wiring of ON/OFF/HOLD switch
Adjust door open/close speed
Verify proper wiring and replace sensor as needed
Wait a while the door position is stable without
detection
Remove highly reflecting objects from the detection
area
Lower the sensitivity
Adjust threshold and swing area angles
Contact your installer or service engineer
Higher the sensitivity
Adjust threshold and swing area angles
Back to fully close position and wait a while
Verify proper wiring and replace sensor as needed
Execute auto configuration at fully close position
Verify proper wiring
For monitored door in ANSI 156.10
Verify test output (activation) setting as needed
Verify self-diagnosis setting of the door controller
Adjust door open/close speed or set by setting app
Adjust door open/close speed or set by setting app
Verify proper connection and replace sensor as
needed
Not abnormal, but the operation may stable if it is to
connect
Verify proper wiring
Verify proper settings
Verify proper connection of loop harness or pass
through harness and replace sensor as needed
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