Diagnostics And Troubleshooting; Error Displays Of The Operating State Leds - Leuze electronic DDLS 508 Original Operating Instructions

7

Diagnostics and troubleshooting

What to do in case of failure?
The LED displays in the control panel provide information about possible warnings or errors (see chapter
3.3.1 "Indicators and operational controls in the control panel"). Using the LED displays, you can determine
the causes and initiate rectification measures.
NOTICE
Contact Leuze electronic subsidiary/customer service!
Ä If the specified measures are not successful, contact the responsible Leuze electronic sub-
sidiary or Leuze electronic customer service (see chapter 9 "Service and support").
7.1

Error displays of the operating state LEDs

Tab. 7.1: PWR LED displays – Causes and measures
LED Color
PWR ---
Red
Red
Leuze electronic
State possible causes
OFF • No supply voltage
• Hardware error
Flashing Warning message set:
• Optical link interrupted.
• No green and orange
LEDs in SIGNAL QUAL-
ITY indicator.
• Laser diode of transmitter
defective.
• Temperature warning.
Continuous Device error
light
DDLS 508
Diagnostics and troubleshooting
Measures
• Check supply voltage.
• Contact Leuze electronic cus-
tomer service (see chapter 9
"Service and support").
Check cause for the reduced SIG-
NAL QUALITY:
• Device alignment.
• Clean optical window.
• Eliminate the possibility of envi-
ronmental influences such as
snow, rain, fog.
• Laser diode: at end of life ex-
pectancy
Check LSR LED.
Check display of the operating state
LEDs:
• Temperature warning/error
(TMP)
• Optical link (OLK)
• Error link (ERL)
• Laser pre-failure message (LSR)
Contact Leuze electronic customer
service (see chapter 9 "Service and
support").
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