Trouble-Shooting; Trouble-Shooting Instructions - Endress+Hauser Levelflex M FMP41C Operating Instructions Manual

Levelflex M FMP41C PROFIBUS PA
Endress+Hauser
9

Trouble-shooting

9.1

Trouble-shooting instructions

Levelflex M -Trouble Shooting
Check voltage and
compare it with the
Instrument does
specifications on the
not respond
nameplate.
Check the polarity
of the voltage.
Check power connection
to electronic board
Yes
Values on display
Contrast:
invissible
Not ok
No
Check plug contact
of the display.
Communication
Yes
Check cabling +
PA does not
terminator
function
ok.
EMC interference?
No
Communication
Yes
via Service adapter
Check configuration
does not function
of COM port on PC
Instrument
Yes
measures
Check basic setup
incorrectly
Proceed according
to section
'Trouble shooting' in OM
Not ok
Connect the
correct voltage
ok
Not ok
Correct the polarity
ok
Not ok
Connect plug
ok
ok
F O
+
Not ok
Connect the plug
correctly
ok
Not ok
Correct cabling +
terminator
Check screening
Yes
(see BA Section
'Connection')
Not ok
Correct configuration
Not ok
Repeat
basic setup
ok.
Trouble-shooting
Yes
Instrument works? Ready
No
Yes
Instrument works? Ready
nein
Yes
Instrument works? Ready
No
Ready
Yes
Ready
Display works?
No
Yes
Communication ok? Ready
No
Yes
Communication ok? Ready
No
Contact Endress+Hauser Service
Yes
Communication ok? Ready
No
Contact Endress+Hauser Service
Yes
Measurement ok?
Ready
No
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