Diagnostics And Troubleshooting; General Troubleshooting - Endress+Hauser Proline Cubemass C 100 PROFIBUS DP Operating Instructions Manual

Diagnostics and troubleshooting

84
12 Diagnostics and troubleshooting
12.1

General troubleshooting

For local display
Problem
Local display dark and no output
signals
Local display dark and no output
signals
Local display dark and no output
signals
Local display dark and no output
signals
Local display dark and no output
signals
Local display is dark, but signal
output is within the valid range
Local display is dark, but signal
output is within the valid range
Local display is dark, but signal
output is within the valid range
Backlighting of local display is red
Message on local display:
"Communication Error"
"Check Electronics"
For output signals
Problem
Green power LED on the main
electronics module of the
transmitter is dark
Device measures incorrectly.
For access
Problem
No write access to parameters
No connection via PROFIBUS DP
No connection via PROFIBUS DP
Proline Cubemass C 100 PROFIBUS DP
Possible causes
Supply voltage does not match that
specified on the nameplate.
Supply voltage has incorrect
polarity.
No contact between connecting
cables and terminals.
Terminals are not plugged into the
I/O electronics module correctly.
I/O electronics module is defective.
Display is set too bright or too dark. • Set the display brighter by
The cable of the display module is
not plugged in correctly.
Display module is defective.
Diagnostic event with "Alarm"
diagnostic behavior has occurred.
Communication between the
display module and the electronics
is interrupted.
Possible causes
Supply voltage does not match that
specified on the nameplate.
Configuration error or device is
operated outside the application.
Possible causes
Hardware write protection enabled
PROFIBUS DP bus cable connected
incorrectly
Device plug connected incorrectly
Remedial action
Apply the correct supply voltage
→  30.
Reverse polarity of supply voltage.
Check the connection of the cables
and correct if necessary.
Check terminals.
Order spare part →  103.
simultaneously pressing  + .
• Set the display darker by
simultaneously pressing  + .
Insert the plug correctly into the
main electronics module and
display module.
Order spare part →  103.
Take remedial measures →  92
• Check the cable and the
connector between the main
electronics module and display
module.
• Order spare part →  103.
Remedial action
Apply the correct supply voltage
→  30.
1. Check and correct parameter
configuration.
2. Observe limit values specified in
the "Technical Data".
Remedial action
Set the write protection switch on
the main electronics module to the
OFF position .
Check the terminal assignment .
Check the pin assignment of the
device plug .
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