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cegard/Smart
6.14 Troubleshooting
Emitter (Tx)
Receiver (Rx)
indicator LED 1 -
indicator LED 1 -
Power
Power
OFF
OFF
OFF
Red ON
Red ON
OFF
Red ON
Red ON
Red ON
Red ON
Red ON
The emitter and receiver indicator LEDs locations are shown in Chapter 7.2. cegard/Smart light curtain dimensions.
Important:
If a problem persists, please contact your local CEDES representative. Visit www.cedes.com for contact data.
6.15 Maintenance and replacement
Although the cegard/Smart light curtain does not need regular maintenance, a periodic functional check is strongly
recommended:
` Make sure the optical windows are clear of dirt and dust. If necessary, clean the front surface with a soft towel.
` Make sure the edges are securely fastened.
` Check the mounting position, cable routing and connection of the sensor.
` Check the detection behavior of the cegard/Smart light curtain according to the requirements of local regulations (for
EN 81-20 or ASME A17.1/CSA B44, whichever applies to your application, see Chapter 6.9).
NOTICE
Damage to the optical elements
Never use any solvents, cleaners or mechanically abrasive towels or high-pressure water to clean the sensor.
Avoid scratching the optical elements while cleaning.
6.16 Disposal
A cegard/Smart system or components of a cegard/Smart system should only be replaced if a similar protection device
is installed. Disposal should be done using the most up-to-date recycling technology according to local regulations and
laws. There are no harmful materials used in the design and manufacture of the sensor. Traces of such dangerous
materials may be found in the electronic components but not in quantities that are harmful.
Waste Electrical and Electronic Equipment (WEEE):
At the end of life, this equipment should be collected separately from any unsorted municipal waste.
18
Receiver (Rx)
indicator LED 2
Output status
Action
OFF
Check electrical connections.
Check supply voltage of the door controller.
Restart the system.
Red ON
Check the power supply and the connection of the
emitter (Tx) cable (white M8 connector).
OFF
Check the power supply and the connection of the
receiver (Rx) cable (blue M8 connector).
OFF
No object detected.
Normal operation (no action required).
Red ON
Normal operation, object detected.
Check alignment or remove object.
Check if front windows are clean.
Check power supply.
Check connections.
Red ON/ OFF
Make sure the detection area is clear of interruption.
sporadic blinking
Clean the front window.
Make sure that the cables and edges are located away
from sources of electromagnetic interference (EMI).
Make sure that no other infrared light sources or ambient
light sources are nearby or facing the receiver e.g., a
security camera.
Ensure that the emitter and receiver are correctly aligned
and remain aligned during door closure (e.g. that
vibrations do not cause edges to become misaligned).
Measure the U
Restart the system.
voltage.
SP
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