Beck, R&J ELECTRIC ACTUATORS FOR INDUSTRIAL PROCESSCONTROL 11-1_9 Manual De Usuario
55
Short-stroke Operation
(Reducing Full Travel)
(Reducing Full Travel)
Typically, it is best to use the full 100% travel
of the drive in response to the 0–100% Demand
input signal.
input signal.
In certain applications, as a last resort, it may
become necessary to reduce the full travel of the
drive. In these applications, the DCM-2 can be
calibrated to accommodate reduced stroke. The
recommended minimum full travel is 60%, although
it is advisable to make the range as close to 100%
as possible for the highest position resolution
attainable with the CPS and to avoid possible
reduction in torque.
drive. In these applications, the DCM-2 can be
calibrated to accommodate reduced stroke. The
recommended minimum full travel is 60%, although
it is advisable to make the range as close to 100%
as possible for the highest position resolution
attainable with the CPS and to avoid possible
reduction in torque.
Reducing the full travel is referred to as
“short-stroking” the drive. This can be easily
accomplished by using a HART communication
device.
accomplished by using a HART communication
device.
First, navigate to the Configuration menu.
Select the General Setup submenu. Select the
Travel parameter. Reduce the stroke by entering
a percentage of full travel (not less than 60%) of
the maximum travel of the drive.
Travel parameter. Reduce the stroke by entering
a percentage of full travel (not less than 60%) of
the maximum travel of the drive.