VEGA VEGASON 65 Foundation Fieldbus - Manual (Page 43)

8 Maintenance and fault rectification
8.1 Maintenance
W hen used in the correct way, no special maintenance is required in
normal operation.
8.2 Remove interferences
T he operator of the system is responsible for taken suitable measures
to remove interferences.
A maximum of reliability is ensured. Nevertheless, faults can occur
during operation. These may be caused by the following, e.g.:
l S ensor
l P rocess
l P
ower supply
l S ignal processing
T he first measures to be taken are to check the output signals as well
as to evaluate the error messages via the indicating 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
in this way and faults can be rectified.
H owever, should these measures not be successful, call the VEGA
service hotline in urgent cases under the phone no. +49 1805 858550.
T he hotline is available to you 7 days a week round-the-clock. Since
we offer this service world-wide, the support is only available in the
E
nglish language. The service is free of charge, only the standard
telephone costs will be charged.
? W hen an additional instrument is connected, the H1 segment fails.
l M ax. supply current of the segment coupler exceeded
à Measure the current consumption, reduce size of segment
? M easured value on the indicating and adjustment module does not
correspond to the value in the PLC
l T he menu item "Display - Display value" is not set to "AI-Out"
à Check values and correct, if necessary
? I nstrument does not appear during connection setup
l I ncorrect termination
à Check termination at the beginning and end points of the bus
and terminate, if necessary, according to the specification
l I nstrument not connected to the segment
à Check and correct
Reaction when malfunc-
tions occur
Causes of malfunction
Fault rectification
24 hour service hotline
Checking Foundation
Fieldbus
VEGASON 65 • F oundation Fieldbus 43
8 M aintenance and fault rectification
28794
-
EN
-081127