7 Parameter menu
Operating Manual 90° ACTUSAFE CMF(S)QT
OM-ENGLISH-Failsafe-QT-16xx-V2.00-2022.03.01
continued from previous page
Menu item
Sub-menu item
poss. setting
Notes / comments
P13.10
Positioner
Period
{2.0 s}
Variable speed actuators (Actusmart CM and Smartcon
CSC FU): Without function
Fixed speed actuators (Smartcon CSC): This parameter
is only relevant in Step mode when approaching the
target position (parameter gain smaller than 100%) and
determines the period of a run / pause cycle.
P13.11
Positioner
Begin pos. (a0)
0.0. . . 25.0%
{2.0%}
Smallest controllable position other than the end position
CLOSED. The range 0% . . . a0 will be just passed
through. Use the parameter a0 to define the beginning of
the allowable control range of the valve (e.g., blind spot
for ball segment valves, etc.).
P13.12
Positioner
End pos. (e0)
75.0. . . 100.0%
{98.0%}
Largest controllable position other than the end position
OPEN. The area e0 . . . 100% is just passed through. Use
the parameter e0 to define the end of the allowable
control range of the valve.
P13.13
Positioner
Begin setp.
(a1)
0.0. . . 25.0%
{2.0%}
Below this value, the end position CLOSED is controlled.
In the range 0% . . . a1 cannot be controlled (end position
tolerance). The initial setpoint a1 is associated with a
small hysteresis (1/4 of the deadband).
P13.14
Positioner
End setp. (e1)
75.0. . . 100.0%
{98,0%}
Above this value, the end position OPEN is controlled.
The range e1. . . 100% cannot be controlled (end position
tolerance). The final setpoint e1 is associated with a
small hysteresis (1/4 of the deadband).
P13.15
Positioner
Calib. Setpoint
0mA
-10% . . . +10%
Calibration of 0mA for the input setpoint. 1% = approx.
0.2mA. Calibration process: By applying 0mA on the
setpoint input, this parameter is corrected until the
readout matches 0mA.
P13.16
Positioner
Hysteresis
0. . . 100%
Hysteresis range for setpoint signal, with regard to the
dead band. Setting 0 equals to a hysteresis of 25%.
Figure 72:
Assigning the position to the setpoint
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