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

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
table 3.2). Using the LED displays, you can determine the causes and initiate rectification measures .
NOTICE
Contact Leuze electronic subsidiary/customer service.
 If the specified measures are not successful, contact the responsible Leuze electronic subsidiary or
Leuze electronic customer service (see chapter 9 "Service and support").
7.1

Error displays of the operating state LEDs

Table 7.1:
LED Color
PWR ---
Red
Red
Table 7.2:
LED Color
TMP Orange Continuous
Red
Notice
Data transmission remains active if above or below the operating temperature.
An operating hour counter is started internally that records the operating time outside of the specified
operating temperature.
In this case, the laser diode is excluded from guarantee services.
Leuze electronic
PWR LED displays – Causes and measures
State possible causes
• No supply voltage
OFF
• Hardware error
Flashing Warning message set:
• Optical link interrupted.
• No green and orange
• Laser diode of transmitter
• Temperature warning.
Continuous Device error
light
TMP LED displays - Causes and measures
State possible causes
The operating temperature is
light above or below the specified
range by up to 5 °C.
Continuous The operating temperature is
light above or below the specified
range by more than 5 °C.
LEDs in
SIGNAL QUALITY indica -
tor.
defective.
DDLS 508
Diagnostics and troubleshooting
Measures
• Check supply voltage.
• Contact Leuze electronic custo -
mer service (see chapter 9).
Check cause for the reduced
SIGNAL QUALITY:
• Device alignment.
• Clean optical window.
• Eliminate the possibility of envi -
ronmental influences such as
snow, rain, fog.
• Laser diode: at end of life expec -
tancy
Check LSR LED (see table 7.3).
Check display of the operating state
LEDs:
• Temperature warning/error
(TMP) (see table 7.2)
• Optical link (OLK) (see table 7.4)
• Error link (ERL) (see table 7.5)
• Laser pre-failure message
(LSR) (see table 7.3)
Contact Leuze electronic customer
service (see chapter 9).
Measures
Check ambient temperature.
• Initiate measures for lowering
the ambient temperature.
Check ambient temperature.
• Initiate measures for lowering
the ambient temperature.
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