Troubleshooting
Leuze electronic GmbH + Co. KG
CML 730i
194
17
Troubleshooting
17.1 What to do in case of failure?
After switching on the light curtain, display elements (see chapter 3.4) assist in checking the proper func
-
tion and troubleshooting.
In case of error, you can determine the error from the LED displays. With the error message you can deter
-
mine the cause of the error and initiate measures to rectify it.
17.2 Operating indicators of the LEDs
Table 17.1:
Receiver LED displays - state and causes
NOTICE
If the light curtain responds with an error display, you will often be able to eliminate the cause yourself!
Switch off the system and leave it switched off.
Analyze and eliminate the cause of the fault using the following table.
If you are unable to rectify the error, contact the Leuze branch responsible for you or call the Leuze
customer service (see chapter 19 "Service and support").
LED green
LED yellow
State
Possible cause
ON
(continuous
light)
-
Sensor ready
OFF
OFF
Sensor not ready
Interruption of the operating voltage;
Light curtain in start-up phase
OFF
Flashing
(15 Hz)
Missing function reserve
Soiling of the lens covers
Misalignment of transmitter or
receiver
Operating range exceeded
Flashing synchronously
(3 Hz)
Teach running
Flashing synchronously
(9 Hz)
Teach error
Soiling of the lens covers
Operating range exceeded
Flashing alternately (9 Hz)
System error
No connection between transmitter
and receiver
Operating voltage too low
Receiver is not compatible with the
transmitter