24
D1C2-Cl-026-GB
10 %
additional load:
regulated range
Access to all setting menus can be blocked with an access code !
Only with control
Note: The control variable is recalculated every second. Only
suitable for process with time constants greater than 30 s !
Control with dead zone
For normal control
PID control
Proportional control
setpoint
1.00 ppm
setpoint 2 upper
ctrl. parameter
Ti =
Td =
xp =
setpoint 1 lower
10 %
ctrl. parameter
xp =
10 %
control
settings ?
control
positive chlor
regulated value:
negative Dechlor
manual dosing
control
current regulat.
value: 30 %
15 %
regulated range
Positive values of control variable: chlorine
Negative values of control variable: Dechlorine
(chlorine destruction)
normal
1.20 ppm
1.00 ppm
For manual control
0 s
0 s
Control
Possible values
Initial value Increment Lower value Upper value Remarks
Control normal normal When controlling with dead zone,
with dead zone the feed forward control is not
manual used for measured values within
the dead zone.
Setpoint 1.00 ppm 0.01 ppm Lower measure- Upper measure- 2 setpoints necessary for
ment range ment range control with dead zone.
limit limit Setpoint 1 < setpoint 2
Control parameter xp 10 % 1 % 1 % 500 % xp referred to measuring range
Control parameter Ti off 1 s 1 s 9999 s Function off = 0 s
Control parameter Td off 1 s 1 s 2500 s Function off = 0 s
Additional load 0 % 1 % -100 % +100 %
Manual metering 0 % 1 % -100 % +100 %
Complete Operating Menu / Description
Abbreviations for control variables:
x
p
= 100 %/Kp (inverse proportional coefficient)
T
i
=I controller integration time [s]
T
d
=D controller differential time [s]
BA_DM_173_03_09_GB.p65 30.03.2009, 12:10 Uhr24
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