GridScan/Mini-SB2/-ST2
12. Troubleshooting
Emitter edge (Tx)
Receiver edge (Rx)
LED off
LED off
LED off
LED red
LED green
LED always green
(even when interrupted)
LED on/off
LED on/off
(flickering red)
LED green
LED on/off, min. 100 ms off (red,
slow blinking, frequency depends on
the number of elements)
LED green
LED switching between red
(interrupted) and green (free)
(sporadically flickering)
LED green
LED always red
LED off
LED on/off, min. 100 ms off (red,
slow blinking, frequency depends on
the number of elements)
LED green
LED on/off (red, fast blinking, 5 Hz)
Important: Whenever a parameter is changed, the system must be restarted.
If a problem persists, please contact your local CEDES representative. Visit www.cedes.com for contact data.
13. Maintenance
Although the GridScan/Mini-SB2/-ST2 does not need
regular maintenance, a periodic functional check is strongly
recommended:
` Make sure the optical elements 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.
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.
© CEDES | V 2.3
Action
` Check electrical connections.
` Check supply voltage of the door controller.
` Check the connection of the synchronization cable.
` Make sure the sensor edges are not mounted close to any
shiny or reflective surface.
` Restart the system.
` Check power supply.
` Check connections.
` Make sure the protective field is clear of interruption.
` Check the alignment of the light curtain.
` Clean elements.
` Make sure the protective field is clear of interruption.
` Clean the elements.
` Make sure that the cables and edges are located away from
sources of electromagnetic interference.
` Ensure that the emitter and receiver are correctly aligned
and remain so during door closure (e.g. that vibrations do
not cause edges to become misaligned).
` Restart the system.
` Make sure the protective field is clear of interruption.
` Reopen door completely
` Clean the elements.
` Check the alignment of the light curtain.
` Check that the test input is connected to the test output
signal of the door control unit and that the signal level and
logic (HIGH/LOW) are correct. If the test input is not used,
connect it permanently to U
` Measure the U
voltage.
SP
` Restart the system.
` Check the connection of the synchronization cable.
Internal error occurred
` Restart the system.
` Replace Rx edge.
14. Disposal
The GridScan/Mini-SB2/-ST2 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.
English
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SP
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