Error Displays And Status Led For Remote Diagnosis; Error Displays Of The Operating Mode Leds - Leuze electronic DDLS 508i Original Operating Instructions

Diagnostics and troubleshooting
7.2

Error displays and STATUS LED for remote diagnosis

Tab. 7.8: STATUS LED displays – Causes and measures
LED Color
STATUS Green
LED
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7.3

Error displays of the operating mode LEDs

Tab. 7.9: ADJ LED displays - Causes and measures
LED Color
ADJ Green
Leuze electronic GmbH + Co. KG
State possible causes
Flashing Warning message(s) set:
• SIGNAL QUALITY indicator
without green LED.
• Temperature, warning or error
(TMP).
• Laser pre-failure (LSR).
• Link Loss Counter has trig-
gered (LLC).
OFF The transmitter is deactivated:
• No supply voltage.
• SIGNAL QUALITY indicator
shows only red LEDs.
• The LINK and LINK/ACT LEDs
are off.
State possible causes
Flashing • The "Adjust" operating
mode is not activated on
the second device.
• In the "Adjust" operating
mode, the supply voltage of
the second device was
switched off/interrupted.
Measures
Activate the "Adjust" operating mode
on the second device (see chapter
6.1 "Setting the operating mode").
DDLS 508i
Measures
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 (see chapter
7.1 "Error displays of the operat-
ing state LEDs").
Check ambient temperature
• Initiate measures for lowering
the ambient temperature.
Check supply voltage.
Check Ethernet cable connection.
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 (see chapter
7.1 "Error displays of the operat-
ing state LEDs").
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