VEGA VEGAFLEX 66 (-200…+400°C) Foundation Fieldbus - Manual (Page 39)

Error Cause Removal
Measured value
on the indicating
and adjustment
module does not
correspond to the
value in the PLC The menu item
"
Display - Dis-
play value " is
not set to " AI-
Out "
Check values and correct, if neces-
sary
Instrument does
not appear during
connection setup Profibus DP cab-
le pole-reversed Check cable and correct, if necessary
Incorrect termina-
tion Check termination at the beginning
and end points of the bus and termin-
ate, if necessary, according to the
specification
Instrument not
connected to the
segment Check and correct, if necessary
In Ex applications, the regulations for the wiring of intrinsically safe
circuits must be observed.
Depending on the failure reason and measures taken, the steps
described in chapter "Set up" must be carried out again, if necessary.
8 .3 Exchanging the electronics module
If the electronics module is defective, it can be replaced by the user.
In Ex applications only one instrument and one electronics module with
respective Ex approval may be used.
If there is no electronics module available on site, one can be ordered
from the VEGA agency serving you.
The new electronics module must be loaded with the settings of the
sensor. These are the options:
l At the factory by VEGA
l Or on site by the user
In both cases, the sensor serial number is necessary. The serial
numbers are stated on the type label of the instrument, inside the
housing or on the delivery note.
Information:
When loading on site, first of all the order data must be downloaded
from the Internet (see operating instructions manual "Oscillator").
Reaction after fault rec-
tification
Sensor serial number
VEGAFLEX 66 • Foundation Fieldbus 39
8 Maintenance and fault rectification
34176
-
EN
-100426