23.3.2.
DBND – Insensitivity range (dead band)
This function causes the process controller to respond from a specific control difference only. This protects both
the solenoid valves in the device and the pneumatic actuator.
Factory setting: 1.0 %
Operating structure:
PID.PARAMETER
Figure 33:
Operating structure DBND; insensitivity range
Insensitivity range for process control
Process
set-point value
(SP)
Figure 34:
Diagram DBND; insensitivity range for process control
23.3.3.
KP – Amplification factor of the process controller
The amplification factor specifies the P-contribution of the PID controller
(can be set with the aid of the P.TUNE function).
Factory setting: 1.00
Operating structure:
PID.PARAMETER
Figure 35:
Operating structure KP; amplification factor
The KP amplification of the process controller refers to the scaled, physical unit.
78
with reference to the range of the scaled process actual value
(setting in the menu PV-SCALE → PVmin → PVmax).
DBND 1.0 %
ENTER
FILTER
EXIT
Control
difference
Xd2
Process
actual value
(PV)
DBND 1.0 %
ENTER
KP
FILTER
EXIT
english
INPUT
Input value
0
Xd2'
Dead band
1.00
Input value
INPUT
Adjustment range: 0 ... 99.99
0
(% / set unit)
Typ EP 501
Start-Up
ESC
to the controller
Xd2'
Xd2
OK
OK
ESC