VEGA MINITRAC 31 Profibus PA - Manual (Page 75)

75
9 Diagnostics and service
MINITRAC 31 • Profibus PA
43836-EN-131119
Code
Text mes-
sage
Cause Rectification
S017
Accuracy
outside the
specification
– Accuracy outside the
specification
– Correct adjustment data
S025
Bad lineariza-
tion table
– Bad linearization table – Carry out linearization
S038
Slave outside
the specifica-
tion
– Slave outside the specifica-
tion
– Check Slave
S125
Ambient tem-
perature too
high/too low
– Ambient temperature too
high/too low
– Protect instrument with
isolating material against
extreme temperatures
The instrument has no status messages to the section "Maintenance".
9.3 Rectify faults
The operator of the system is responsible for taking suitable meas-
ures to rectify faults.
The first measures are:
•
Evaluation of fault messages via the indicating and adjustment
module
•
Checking the output signal
•
Treatment of measurement errors
Further comprehensive diagnosis possibilities are offered by a PC
with the software PACTware and suitable DTM.
In many case, the failure reasons can thus be determined and faults
rectified.
The following table describes possible errors with the output signal
and helps to remove them:
Error Cause Rectification
Output signal not stable Level fluctuations Set damping according to the instrument via
the display and adjustment module or PACT-
ware/DTM
Output signal missing Electrical connection faulty Check connection according to chapter
"Connection steps" and if necessary, correct ac-
cording to chapter "Wiring plan"
Voltage supply missing Check cables for breaks; repair if necessary
Operating voltage too low Check, adapt if necessary
Maintenance
Reaction when malfunc-
tions occur
Procedure for fault recti-
fication
Check output signal
(level measurement)