Samson TROVIS 3730-3, Operating Instructions Manual

Page: 68 / 132

68 EB 8389 EN
Tests
1.
Settings > Identification > Positioner >
Actuator
− Model: Single acting, [-/-]
2. − Booster: Not present, [-/-]
Defining parameters
1. Switch to manual mode.
2.
Select classification for status messages.
3. Set cancellation condition (see sec-
tion 5.2.1).
4. Start test.
The 'Test information' status indicates
'Running test'. 'd2' and 'tEST' are indi-
cated in alternating sequence on the po-
sitioner display.
'Function check' is activated as the
condensed state.
1.
Operation > Operating mode
1)
−
Target mode (Code 0): Manual
Types 3730-2/-3/-4/-5 (1.5x) and Type 3731-3:
2.
Settings > Positioner > Error control >
Classification report > Extended > ...
Friction
− Much higher/lower over whole range (TEST)
2) : [ ], , , ( ), ( )
− Much higher/lower over section (TEST) 2) : [
], , , ( ), ( )
Type 3730-5 (1.6x) and Type 3731-5:
2.
Settings > Positioner > Diagnosis configura -
tion > Classification
−
Friction: [ ], , , ,
3.
Diagnosis > Statistical information > Drive
signal diagram > Hysteresis
− Tolerance band of hysteresis: 1.0 to [5 %]
4.
Diagnosis > Tests > Drive signal diagram
hysteresis
−
Start test
1)
Types 3730-4/-5 and Type 3731-5:
Operation > Operating mode > Positioner
(AO, TRD)
2)
Types 3730-4/-5 (1.5x): two single parame -
ters: '... higher (TEST)' and '... lower (TEST)'
Cancel the test by right-clicking 'Stop test'
and selecting 'Execute' or by pressing the ro
-
tary pushbutton at the positioner.
After the test has been canceled, the posi-
tioner remains in manual mode.
In TROVIS-VIEW the test information and
progress flag of the test are displayed. The
'Test information' status indicates 'Test fin
-
ished' after the test is finished.
5.2.1 Analysis and monitoring
The test is canceled if the valve cannot move
to a certain position or a value leaves the
'Tolerance band of hysteresis'.
−
If the valve position x leaves the 'Toler-
ance band of hysteresis' during the test,
the test is immediately canceled and the
positioner returns to closed-loop opera-
tion.
− If a change in set point (∆w) occurs
which is greater than the 'Tolerance band
of hysteresis', the test is immediately can-
celed and the test is started again after
Note