Troubleshooting
In case of trouble, verify the following:
–
Transmitter and receiver power supply voltage is between 10.5
ー
28 V
–
Transmitter monitor LED is on
–
Receiver alarm LED turns on when beam is blocked
–
Volume of Beam Power Control is appropriate for the set range
–
Receiver level LED is off
Troubleshooting table
Problem
Cause
Solution
Constant
alarm
Objects are blocking the beam
Remove object(s)
Optical modules or covers are dirty
Clean optical modules and covers
False
alarms
Unit misaligned
Realign the devices
Intermittent blocking of the beam
Remove object(s)
Beam interruption time is set too short
Increase interruption time
Electro-magnetic or radio frequency
interference
Relocate devices away from noise
Wiring too close to power sources or
power line
Change the wiring route
Unstable mounting surface
Improve installation stability
Inappropriate beam power control level
Re-adjust the control level
Transmitter and receiver distance exceed
the model’s maximum range
Reinstall within supported range or
switch to a model with greater
range
No alarm
when
beams are
broken
Beams are reflected into the receiver
Remove reflective objects or change
the installation site
Beam interruption time is set too low
Increase the sensitivity
Other devices’ beams interfere with the
receiver
Adjust beams power or change
location
EDC
activation
Beam interruption is set too slow
Decrease interruption time
Objects are blocking the beams
Remove object(s)
Unstable mounting surface
Improve installation stability
Unstable installation site
Improve installation stability
Transmitter and receiver distance exceed
the model’s maximum range
Reinstall within supported range or
switch to a model with greater
range
Additional information
–
At least once a year, clean the optical modules and covers with a soft cloth. Perform walk
testing to verify correct operation.
9
9.1
Photobeam 5000
Troubleshooting | en
23
Bosch Security Systems, Inc.
Installation and Operation Guide
2016.02 | 03 | F.01U.305.910
