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Reaction when malfunc-
tion occurs
Causes of malfunction
Fault rectification
24 hour service hotline
Checking Profibus PA
VEGASON 62 • Profibus PA
8 Maintenance and fault rectification
8.1
Maintenance
If the instrument is used properly, no special maintenance is required
in normal operation.
8.2 Rectify faults
The operator of the system is responsible for taking suitable meas-
ures to rectify faults.
VEGASON 62 offers maximum reliability. Nevertheless, faults can oc-
cur during operation. These may be caused by the following, e.g.:
•
Sensor
•
Process
•
Voltage supply
•
Signal processing
The first measures to be taken are to check the output signals as well
as to evaluate the error messages via the display and adjustment
module. The procedure is described below. Further comprehensive
diagnostics can be carried out on a PC with the software PACTware
and the suitable DTM. In many cases, the causes can be determined
and the faults rectified this way.
Should these measures not be successful, please call in urgent cases
the VEGA service hotline under the phone no. +49 1805 858550.
The hotline is manned 7 days a week round-the-clock. Since we offer
this service worldwide, the support is only available in the English
language. The service is free, only standard call charges are incurred.
The following table describes possible errors and helps to remove
them:
Error
Cause
When an addi-
Max. supply
tional instrument
current of the seg-
is connected, the
ment coupler
segment fails.
exceeded
Wrong pres-
Simatic S5 cannot
entation of the
interpret the num-
measured value in
ber format IEEE
Simatic S5
of the measured
value
In Simatic S7 the
Only four bytes
measured value
are consistently
is always present-
loaded in the PLC
ed as 0
8 Maintenance and fault rectification
Rectification
Measure the current consumption, re-
duce size of segment
Insert converting component from Sie-
mens
Use function component SFC 14 to
load 5 bytes consistently
45
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