VEGA VEGABAR 52 Foundation Fieldbus User Manual
Page 41
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8 Maintenance and fault rectification
VEGABAR 52 • Foundation Fieldbus
36720-EN-130321
Error
Cause
Rectification
Measured val-
ue on the display
and adjustment
module does not
correspond to the
value in the PLC
The menu item
"Display - Display
value" is not set to
"AI-Out"
Check values and correct, if neces-
sary
Instrument does
not appear during
connection setup
Profibus DP cable
pole-reversed
Check cable and correct, if necessary
Incorrect termi-
nation
Check termination at the beginning
and end points of the bus and termi-
nate, 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.
Error code Cause
Rectification
E013
no measured value
available
8)
– Exchange the instrument or send it
in for repair
E017
Adjustment span too
small
– repeat with modified values
E036
no operable sensor
software
– Carry out a software update or send
instrument for repair
E041
Hardware error, elec-
tronics defective
– Exchange the instrument or send it
in for repair
E113
Communication con-
flict
– Exchange the instrument or send it
in for repair
Depending on the reason for the fault and the measures taken, the
steps described in chapter "Set up" may have to be carried out again.
8.3 Calculation of total deviation (according to
DIN 16086)
The total deviation F
total
according to DIN 16086 is the sum of basic
accuracy F
perf
and longterm stability F
stab
. F
total
is also called maximum
practical deviation or utility error.
F
total
= F
perf
+ F
stab
F
perf
= √((F
T
)
2
+ (F
Kl
)
2
)
With the analogue signal output there is also the error of the current
output F
a
.
F
perf
= √((F
T
)
2
+ (F
Kl
)
2
+ (F
a
)
2
)
With:
•
F
total
: Total deviation
Error messages via the
display and adjustment
module
Reaction after fault recti-
fication
Total deviation
8)
Fault message can also appear if the pressure is higher than the nominal
range.