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Diagnostics and Troubleshooting
14.3 Troubleshooting
Error
Possible causes
Check connections and
supply voltage at the device; switch back on
•
In event of defect, replace
device and send in for repair.
•
Check input IN and setting
of switch S1
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In event of defect, replace
device and send in for repair.
no supply voltage
•
Hardware defect
•
Transmitter/receiver unit is
switched off via input IN.
•
Hardware defect.
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Light beam interruption or no
visual connection to opposing
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device (when opposing device is in the 'Manual' operating mode).
Misalignment of an ID-200
•
(when opposing device is in
the 'Manual' operating mode).
PWR or. UL LED flashes
ADJ LED flashes
•
•
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Transmission error
•
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Wiring error
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Adjustment error (termina•
tion, baud rate, configuration)
Incorrect bus cable
•
•
•
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Transmitter/receiver unit
deactivated
•
Receiving level too low due
to:
- Misalignment
- Soiling
- Operation with
excessively large
operating ranges
•
Influenced by parallel data
path
•
Influenced by cascading data
paths
•
Shielding not connected
•
Incorrect bus termination
•
Earth lead not connected
•
Intense, direct ambient light
Transmission error
•
•
Check light path
Realign transmission path
See error transmission
error
Check wiring
Check settings
Use specified bus cable
Check for correct wiring
and S1 setting
Set to 'Adjust' operating
mode, ADJ LED must not
flash
•
Realign (check in 'Adjust'
operating mode)
Cleaning optical window
•
Observe operating limits
•
Operate data transmission
units with alternating frequency assignments,
check parallel distances
Operate data transmission
units with alternating frequency assignments
Connect shielding correctly
Disconnect/connect terminating resistors
Connect earth lead
Remove ambient light
source
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© TR-Electronic GmbH 2009, All Rights Reserved
Printed in the Federal Republic of Germany
11/23/2009
•
•
PWR or UL LED does not
illuminate
Bus operation not possible
Remedy
TR - E - BA - GB - 0022 - 01
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