11
- Troubleshooting
- Timing chart
PIR detection signal
Detection
Walk test mode
No alarm signal output
Stand-by
Alarm output
LED on
Pulse count 2
10 minutes after power on
< 120 s/5 s
Low power mode
Alarm output
Stand-by
LED off
LED output
LED off
LED off
> 120 s/5 s
[1]
[2]
Problem
Solution
Cause
The LED is off.
The power supply voltage does not meet the requirement
due to disconnection from the power supply or low voltage.
Incorrect detection area.
The detector is in low power mode.
Check the power supply of the detector.
Refer to “Specifications” on the page 9 for the power
supply voltage.
Adjust the detection area. Refer to “Detection area”
on the page 10.
Power on the detector again if an additional walk test
is needed.
Remove the moving object from the detection area or
change the detector location.
Remove the heat source fron the detection area or
change the detector location.
Check the output load. Repair or replace the
damaged part.
Connect the wires for the detector correctly.
Be sure that there is no moving object in the detection
area during the warm-up period of the detector.
Repair or replace the detector.
A moving object exsts in the detection area, such as
a fluttering curtain or a swinging wall-mounted pendant.
The temperature changes rapidly in the detection area
due to a heat source, such as a radiator or air conditioner.
Relay contact abhesion or damage occurs due to
overload.
Improper wiring.
A moving object exista in the detection area during
the warm-up period of the detector.
The detector fails to work properly.
The LED is on even there is no
person in the detection area.
The LED is on but the detector
does not transmit signals.
The detector fails to warm up in
60 seconds after power on and
the LED blinks continuously.
