Spirax Sarco SP8-10, Installation And Maintenance Instructions Manual

Page: 59 / 88

IM-P707-01 CTLS Issue 1
59
SP8-10 Smart positioner
5.1.20 End stop behav.
Menu/parameter Value range Description
Tight Shut 0% 0 to 45.0
The shut-off value is a percentage of the working
range from which the 0 % position is approached.
Once the specified position limit value is reached,
the actuator moves into the 0% end position.
Control at 0% On, Off
Use this parameter to set the end position
behavior. If the parameter is activated, the 0 %
position is controlled. Otherwise, the actuator
moves into the 0 % mechanical end position.
Dead Angle 0% 0.0 to 45.0 %
Use this parameter to cut off the unusable range
of the valve flow characteristic curve from the
point of view of control.
The dead angle is a percentage of the working
range to which the valve is moved if the input
signal is 4.16 mA.
Note:
If the parameter is changed, the switching points
of the binary feedback opposite the valve area
which had possibly been previously adjusted will
shift.
Tight Shut 100% 55.0 to 100
The shut-off value is a percentage of the
working range from which the 100 % position is
approached.
Once the specified position limit value is reached,
the actuator moves into the 100 % end position.
Control at 100% On, Off
Use this parameter to set the end position
behavior. If the parameter is activated, the 100%
position is controlled. Otherwise, the actuator
moves into the 100% mechanical end position.
Dead Angle 100% 55.0 to 100.0 %
Use this parameter to cut off the unusable range
of the valve flow characteristic curve from the
point of view of control.
The dead angle is a percentage of the working
range to which the valve is moved if the input
signal is 19.84 mA.
Note:
If the parameter is changed, the switching points
of the binary feedback opposite the valve area
which had possibly been previously adjusted will
shift.