While the test is active,
d2
and
tESt
appear
on the positioner display in alternating se
-
quence. indicates manual operating
mode.
Viewing the recorded parameters:
The
Drive signal diagram hysteresis
folder
contains a graph with reference
measurements and the last measurement
performed plotting the change in drive sig
-
nal
∆
y versus the valve position x. The
Refer
-
ence valve position
subfolder contains a list
of the valve positions that the valve moved
to.
The recorded
∆
y are saved in the corre
-
sponding subfolders:
> Reference hysteresis
> Repetition value of hysteresis.
Test requirements:
4
A successfully plotted reference graph
and repeated measurements are neces
-
sary in order to analyze the data.
If a reference graph still has not been
plotted on starting the test, this test is
adopted as the reference.
4
Refer to section 1.6 in case a double-act
-
ing actuator with reversing amplifier or a
booster is used or the SUb initialization
mode is set.
24 EB 8388 EN
Tests MAN
Fig 12 · Drive signal diagram hysteresis
To Next Page
Loading...
