Rectify Faults - Vega VEGAPULS WL S 61 Manual De Instrucciones

Code Cause
Text mes-
sage
•
S601 Danger of ves-
sel overfilling
Overfilling
Maintenance
The following table shows the error codes and
text messages in the status message "Mainte-
nance" and provides information on causes as
well as corrective measures.
Code Cause
Text mes-
sage
•
M500 The data could
not be restored
Error during
during the reset
the reset "de-
to delivery
livery status"
status
•
M501 Hardware error
EEPROM
Error in the
non-active li-
nearisation
table
•
M502 Hardware error
EEPROM
Error in the
diagnostics
memory
•
M503 The echo/noise
ratio is too small
Measu-
for reliable
rement
measurement
reliability too
low
•
M504 Hardware defect
Error at a
device inter-
face
•
M505 Level echo can
no longer be
No echo
detected
available
VEGAPULS WL S 61 • 4 ... 20 mA
8.4
Rectification
Reaction when malfunction occurs
The operator of the system is responsible for
•
Make sure
taking suitable measures to rectify faults.
that there is no
further filling
Procedure for fault rectification
•
Check level in
The first measures are:
the vessel
•
•
•
Further comprehensive diagnostics options
are available with a PC with PACTware and the
suitable DTM. In many cases, the reasons can
be determined in this way and faults rectified.
Rectification
Check the 4 ... 20 mA signal
Connect a multimeter in the suitable measuring
•
Repeat reset
range according to the wiring plan. The following
•
Load XML file
table describes possible errors in the current
with sensor data
signal and helps to eliminate them:
into the sensor
•
Send instrument
for repair
•
Send instrument
for repair
•
Check installa-
tion and process
conditions
•
Clean the
antenna
•
Change polari-
sation direction
•
Check connec-
tions
•
Send instrument
for repair
•
Clean the
antenna
•
Remove possi-
ble false echoes
•
Optimize sensor
position and
Reaction after fault rectification
orientation
Depending on the reason for the fault and the
measures taken, the steps described in chapter
"Setup" must be carried out again or must be
8 Diagnosis, asset management and service

Rectify faults

Evaluation of fault messages via the adjust-
ment device
Checking the output signal
Treatment of measurement errors
Error Cause
•
4 ... 20 mA Fluctu-
signal not ations
stable of the
measured
variable
•
4 ... 20 mA Electrical
signal mis- connec-
sing tion faulty
•
Voltage
supply
missing
•
Operating
voltage
too low
or load
resistance
too high
•
Current sig- Elect-
nal greater ronics
than 22 mA module in
or less than the sensor
3.6 mA defective
Rectification
•
Set damping approp-
riate to the instrument
via the display and
adjustment module or
PACTware/DTM
•
Check connection
according to chapter
"Connection steps" and
if necessary, correct
according to chapter
"Wiring plan"
•
Check cables for
breaks; repair if neces-
sary
•
Check, adapt if neces-
sary
•
Exchange the instru-
ment or send it in for
repair
33