Chapter 5 Troubleshooting and Others
Operating Manual for Communicating Area Sensor
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Chapter 5
Troubleshooting and Others
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Troubleshooting
Indicator
Cause
Inspection method
Light is off
Poor power contact
Check the power connection and whether
or not the connector pin is bent
Irregular flashing of red/green
light
Poor beam alignment
Whether it be switched to green light with
near-distance alignment
Check the module and bracket installed flat
Check whether mounting method is
susceptible to vibration
Electrical interference
Check if the shield is connected to a clean
ground.
Has external high power machine
shutdown been improved?
Light source
interference
Is there any external glare affecting device?
Installation of multiple light curtains should
use transmitter/receiver staggered format
Blue/green/red lights are lit
simultaneously
Over-current
Check load at output end
Check output mode setting
Only blue light is lit, and green
light is not lit; red light is lit when
shielded
Power saving setting
Turn off power saving setting
Orange light
Wiring error, or input
voltage exceeds
specifications
Check if wire connection is normal
Check if input voltage is within range
Abnormal internal
signal/voltage
Contact DELTA service center
Red/green lights are lit, and
blue lit is not lit
Abnormal number of
beams
Beam number setting error, or abnormal
number of internal beams Contact DELTA
service center
