Diagnostics And Troubleshooting; General Troubleshooting - Endress+Hauser Proline Promass H 300 PROFINET Operating Instructions Manual

Diagnostics and troubleshooting

146
12 Diagnostics and troubleshooting
12.1

General troubleshooting

For local display
Error
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
Text on local display appears in a
foreign language and cannot be
understood.
Message on local display:
"Communication Error"
"Check Electronics"
For output signals
Error
Signal output outside the valid
range
Device shows correct value on local
display, but signal output is
incorrect, though in the valid range.
Device measures incorrectly.
Possible causes
Supply voltage does not match the
value indicated on the nameplate.
The polarity of the supply voltage is
wrong.
No contact between connecting
cables and terminals.
Terminals are not plugged into the
I/O electronics module correctly.
Terminals are not plugged into the
main electronics module correctly.
I/O electronics module is defective.
Main 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.
Incorrect operating language is
configured.
Communication between the
display module and the electronics
is interrupted.
Possible causes
Main electronics module is
defective.
Configuration error
Configuration error or device is
operated outside the application.
Proline Promass H 300 PROFINET
Solution
Apply the correct supply voltage .
Correct the polarity.
Check the connection of the cables
and correct if necessary.
Check terminals.
Order spare part →  217.
simultaneously pressing  + .
• Set the display darker by
simultaneously pressing  + .
Insert the plug correctly into the
main electronics module and
display module.
Order spare part →  217.
Take remedial measures →  158
1. Press  +  for 2 s ("home
position").
2. Press .
3. Set the desired language in the
Display language parameter
(→  122).
• Check the cable and the
connector between the main
electronics module and display
module.
• Order spare part →  217.
Solution
Order spare part →  217.
Check and correct the parameter
configuration.
1. Check and correct parameter
configuration.
2. Observe limit values specified in
the "Technical Data".
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