Vega VEGAPULS 69 - Rectify Faults

61
9 Diagnosis, asset management and service
VEGAPULS 69 • Foundation Fieldbus
47251-EN-160815
Code
Text message
Cause Rectication DevSpec Diagnosis Bits
M507
Error in the instrument set-
tings
– Error during setup
– Error when carrying out
a reset
– False signal suppression
faulty
– Carry out reset and
repeat setup
Bit 22
9.4 Rectify faults
The operator of the system is responsible for taking suitable meas-
ures to rectify faults.
Therstmeasuresare:
•
Evaluation of fault messages via the adjustment instrument
•
Checking the output signal
•
Treatment of measurement errors
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rectied.
The below tables show typical examples of application-related
measurement errors with bulk solids. A distinction is made between
measurement errors during:
•
Constant level
•
Filling
•
Emptying
The images in column "
Errorpattern" show the real level as a broken
line and the level displayed by the sensor as a continuous line.
1
2
Level
time
0
1 Real level
2 Level displayed by the sensor
Notes:
•
Whenever the sensor displays a constant value, the reason could
also be that the fault setting of the current output is set to "Hold
value"
•
If the level indication is too low, the reason could be a line resist-
ance that is too high
Reaction when malfunc-
tion occurs
Procedure f
or fault recti-
cation
Treatment of measure-
ment errors with bulk
solids