Keeping the World Flowing
23
7.0 Basic Setup
7.5 Set Output Thrust
Before operating the actuator electrically it may be necessary
to reduce the output thrust of the actuator to prevent valve
becoming jammed at the end of travel during setup.
Use UP/DOWN buttons until THRSTC is displayed.
Press ENTER to view the Close output Thrust set value.
The Thrust Output is adjustable between 60% and 150% of
its rated value.
Fig 7.7 shows the Closing Thrust value set to 60% of its rated
value.
NOTE: When the Thrust is selected above the 100%
Rated value this additional effort is only available at
the end of travel to seat the valve for tight shut off
applications.
NOTE: The output Thrust setting must be sufficient
to operate the valve under full working process
conditions.
STEP 1
SELECT LOCAL
OPERATION
STEP 2
SET OUTPUT
THRUST
STEP 4
SET CLOSE LIMIT
OF TRAVEL
STEP 5
SET OPEN LIMIT
OF TRAVEL
STEP 6
CALIBRATE COMMAND
STEP 7
CALIBRATE COMMAND
SIGNAL SPAN SETPOINT
STEP 3
SELECT ACTION AT END
OF TRAVEL (LIMIT OR FORCE)
STEP 8
DEADBAND
X
LOCAL
THRSTC
X
LOCAL
TC 600
VIEW
%
Fig 7.6
Close thrust setting
Fig 7.7
View close thrust value
A4
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A4
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A4
A4
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