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Diagnostics and troubleshooting
Tab. 7.5:
ERL LED displays - Causes and measures
LED
Color
ERL
Orange
Red
Tab. 7.6:
LINK and LINK/ACT LED displays – Causes and measures
LED
Color
LINK
---
LINK/
ACT
Tab. 7.7:
PWR LED displays – Causes and measures
LED
Color
PWR ---
Red
Red
Leuze electronic GmbH + Co. KG
State
possible causes
Continuous
Link error on second device:
light
• Missing link on Ethernet ca-
ble connection of the sec-
ond device.
• SIGNAL QUALITY indicator
on second device without
green and orange LEDs.
Continuous
Link error on first device:
light
• Missing link on Ethernet ca-
ble connection of the first
device.
• SIGNAL QUALITY indicator
on first device without
green and orange LEDs.
State
possible causes
OFF
No cable-connected link to the
connected device.
State
possible causes
OFF
No supply voltage
Hardware error
Flashing
IP address conflict.
Same DDLS 508i IP address
present multiple times in the net-
work.
Continu-
Device error
ous light
Measures
Check Ethernet cable connection on
second device.
Check cause for the reduced SIG-
NAL QUALITY:
Check Ethernet cable connection on
first device.
Check cause for the reduced SIG-
NAL QUALITY:
Measures
Check Ethernet cable connection.
Measures
Check supply voltage.
Contact Leuze customer service (see
chapter 10 "Service and support").
Set different IP addresses for the
DDLS 508i.
Contact Leuze customer service (see
chapter 10 "Service and support").
DDLS 508i
• 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.
• 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.
49
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