Samson TROVIS 3730-3, Operating Instructions Manual

Page: 29 / 132

EB 8389 EN 29
Statistical information
4.1.2 Analysis and monitoring
Valve end position
(falling)
Valve end position
(rising)
Breakaway time
(rising)
Transit time
(rising)
Breakaway time
(falling)
Transit time
(falling)
x [%]
w [%]
t [s]
Fig. 1: Analysis of diagnostics for on/off valve
The analysis pinpoints a fault when at least
one of the following conditions is met while
the valve is moving:
−
The current 'Breakaway time (rising)' dif-
fers from the reference value by the
amount entered in 'Limit value time anal-
ysis'.
− The current 'Breakaway time (falling)'
differs from the reference value by the
amount entered in 'Limit value travel
analysis'.
−
The current 'Transit time (rising)' differs
from the reference value by the amount
entered in 'Limit value time analysis'.
− The current 'Transit time (falling)' differs
from the reference value by the amount
entered in 'Limit value time analysis'.
−
The current 'Valve end position (rising)'
differs from the reference value by the
amount entered in 'Limit value travel
analysis'.
−
The current 'Valve end position (falling)'
differs from the reference value by the
amount entered in 'Limit value travel
analysis'.
If one of these conditions is met, the position-
er generates an 'Open/Close' message ac-
cording the selected status classification.
Diagnosis > Status messages > Extended
−
Open/Close
4.1.3 Resetting single status
messages
The message and analysis are reset by
right-clicking "Reset measured data 'Open/
Close'" and selecting 'Execute'.
The parameters for the on/off valve and the
limit values are reset by right-clicking "Reset
all parameters 'Open/Close'" and selecting
'Execute'.
The positioner saves the reference analysis
and two further test analyses. The analysis of
the oldest test is deleted when another test is
performed.
Operation > Reset
−
Reset measured data 'Open/Close'
− Reset all parameters 'Open/Close'