172-65639M-01 (EF200) 13 Apr 2018
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10. Diagnostics and troubleshooting
10.1 Troubleshooting
For local display
Problem
Possible causes
Remedy
Local display dark and
no output signals
Supply voltage does not
match the voltage specified
on the nameplate.
Apply the correct supply
voltage.
Supply voltage has
incorrect polarity.
Reverse polarity of supply
voltage.
No contact between
connecting cables and
terminals.
Check the connection of the
cables and correct if
necessary.
Terminals are not plugged
into the I/O electronics
module correctly.
Check terminals.
I/O electronics module is
defective.
Order spare part.
Local display is dark,
but signal output is
within the valid range
Display is set too bright or
too dark.
• Set the display brighter by
simultaneously pressing
+
.
• Set the display darker by
simultaneously pressing
+
.
The cable of the display
module is not plugged in
correctly.
Insert the plug correctly into
the main electronics module
and display module.
Display module is defective. Order spare part.
Text on local display
appears in a foreign
language and cannot
be understood.
Incorrect operating
language is configured.
1. Press
+
for 2
seconds ("home position").
2. Press
.
3. Set the desired language in
the Language parameter.
Message on local
display:
"Communication Error"
"Check Electronics"
Communication between
the display module and the
electronics is interrupted.
• Check the cable and the
connector between the
main electronics module
and display module.
• Order spare part.
For output signals
Problem
Possible causes
Remedy
Signal output outside
the valid range
Main electronics module is
defective.
Order spare part.
Signal output outside
the valid current range
(<3.6 mA or >22 mA)
I/O electronics module is
defective.
Order spare part.
Device shows correct
value on local display,
but signal output is
incorrect, though in the
valid range.
Configuration error
Check and correct
parameter configuration.
Device measures
incorrectly.
Configuration error or
device is operated outside
the application.
1. Check and correct
parameter configuration
2. Observe limit values
specified in the
"Technical Data".
+
E
–
E
–
+
E