Bühler technologies TF Guía Rápida página 5

TF with IO-Link
7 Service and Repair
Please refer to the original operator's manual on the included
CD or online at www.buehler-technologies.com for a detailed
description of the unit including information on
troubleshooting and repair.
7.1 Troubleshooting
Problem / Possible cause
Malfunction
No display • No supply
voltage
Error messages on the display:
Alternating between Err and Exxx: e.g.
Error • Ambient temper-
001 ature too low
Error • Ambient temper-
002 ature too high
Error • Pt100 defective
004 (short-circuit)
Error • Pt100 defective
008 (cable break)
Error • Internal error
1024
BX140016 ◦ 09/2020
Possible errors
Malfunction
Switching out-
put not trig-
gering when
exceeding lim-
Action
its
• Check cable and
replace, if neces-
sary
Switching out-
put constantly
⇔
switching
• Maintain limits
• Maintain limits
• Replace Pt100
cable
• Send device in for
The analogue
repair
doesn't re-
• Replace Pt100
ceive the full/
cable
correct output
• Send device in for current
repair
• Please contact
customer service
Analogue out-
put doesn't
change the
output signal
when the in-
put signal
changes
Problem / Possible cause
• Switching output
configured incor-
rectly
• Switching output
defect
• Switching output
configured incor-
rectly
• Switching output
defect
• Wrong signal type
set
• Load too high
(current output)
• Analogue output
configured incor-
rectly
Action
• In submenu Coux:
"Test Switching
Output" to ensure
normal mode
• In submenu Coux:
"Test Switching
Output" to test the
desired switching
output
• In submenu Coux:
"Test Switching
Output" to ensure
normal mode
• In submenu Coux:
"Test Switching
Output" to test the
desired switching
output
• In submenu Aoux:
Check and if neces-
sary set the correct
signal type (cur-
rent/voltage out-
put)
• Reduce load to per-
missible value
• In submenu CAnx:
„Test Analogue
Output" to ensure
normal mode
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