31
10.5 Set Output Torque/Thrust
Before operating the actuator electrically it may be necessary
to reduce the output torque or thrust of the actuator to
prevent valve becoming jammed at the end of travel during
setup.
Use UP/DOWN buttons until TORQ C or THRSTC is displayed.
Press ENTER to view the Close output Torque or Thrust
set value.
The Torque or Thrust Output is adjustable between 60% and
150% of its rated value.
Fig 10.11 shows the Closing Torque value set to 60% of its
rated value.
NOTE: When the Torque/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 Torque or Thrust setting must be
sufficient to operate the valve under full working
process conditions.
STEP 1
SELECT LOCAL
OPERATION
STEP 2
SET OUTPUT
TORQUE/THRUST
STEP 4
SET CLOSE LIMIT
OF TRAVEL
STEP 5
SET OPEN LIMIT
OF TRAVEL
STEP 6
CALIBRATE COMMAND
SIGNAL ZERO SETPOINT
STEP 7
CALIBRATE COMMAND
SIGNAL SPAN SETPOINT
STEP 3
SELECT ACTION AT END
OF TRAVEL ( LIMIT OR FORCE)
STEP 8
DEADBAND
X
LOCAL
TORQ
C
X
LOCAL
TC 600
VIEW
%
Fig 10.10
Fig 10.11
10. Basic Setup
A4 US
US
A4
US
A4
A4 US
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