SED 024.16.720 - CUTOFF - Sealing Function for the Position Controller

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Operation and function
Type 024.16.720
14.1.2. CUTOFF -
Sealing Function for the Position Controller
This function causes the valve to be sealed outside the control range.
Control mode resumes at a hysteresis of 1%.
Factory setting: DIP switch 2 set to OFF (no sealing function)
DIP Switches Position Function
2 ON Sealing function active. The valve completely closes below 2 %
1)
and opens above 98 % of the set-point value (CUTOFF)
OFF No sealing function
Table 27: DIP switch 2
The communications software can be used to change the limits for the position set-point value as a
percentage.
The switching position of the DIP switches in the positioner has priority over the communications
software, i.e. settings of the sealing function (CUTOFF)whicharemodiedviathecommunications
software are only active if DIP switch 2 in the positioner is set to ON.
Valve stroke [%]
Adjustablefrom75–100%
Set-point
value [%]
Adjustablefrom0–25%
Fig. 34: CUTOFF graph
1)
Factory setting can be changed via communications software.