201
5-0
3
72
Pulscon LTC57 PROFIBUS PA
Diagnostics and troubleshooting
11
Diagnostics and troubleshooting
11.1
General trouble shooting
11.1.1
General errors
Error
Possible cause
Remedial action
Device does not respond.
Supply voltage does not match the
value indicated on the nameplate.
Connect the correct voltage.
The cables do not contact the
terminals properly.
Ensure electrical contact between
the cable and the terminal.
Values on the display invisible
Contrast setting is too weak or too
strong.
• Increase contrast by pressing
and simultaneously.
• Decrease contrast by pressing
and simultaneously.
The plug of the display cable is not
connected correctly.
Connect the plug correctly.
Display is defective.
Replace display.
"Communication error" is indicated
on the display when starting the
device or connecting the display
Electromagnetic interference
Check grounding of the device.
Broken display cable or display
plug.
Exchange display.
CDI communication does not
work.
Wrong setting of the COM port on
the computer.
Check the setting of the COM port
on the computer and change it if
necessary.
Device measures incorrectly.
Parametrization error
Check parameterization and
adjust it if necessary (see next
chapter).
Table 11.1
E
E