88
WT.050.580.000.DE.IM.0714
Functions
MFC
4.
The measuring ranges must be adjusted as well when transmitting
the second measurement using a CAN interface instead of module
2.
Example:
Module 1 = Cl
2
free with 1.00 mg/l measuring range
Module 2 = Cl
2
free with 1.00 mg/l measuring range
Only internal setpoint possible.
Output parameter:
•
Dosing pump
•
Solenoid pump
•
Positioner with feedback 1kOhm/5kOhm
•
Continuous
How it works
The control circuit 1 operates as the compound-loop-control (see
4.5.3 “Compound-Loop-Control" on page 81). All settings for
module 1 must also be made as described under compound-loop-
control.
The actuator output is based on the same calculation as the
compound-loop-control.
In addition, the compound-loop-control setpoint may be optimised
depending on the need.
Yout = Wq x (DF
+ ek x Kp x (1 + t/tn)) x Yout-Factor
Ratio Feedback
control
t
Internal controller cycle time
tn
Integral action time
Kp
Control amplification 100 / Xp
ek
Setpoint-actual value control deviation
DF
Learned dosing factor
Wq
Flow rate signal in %
Yout
Determined controller output value %
Yout factor
This factor offers the option to increase the dosing output
if the setpoint is not reached with a dosing factor DF of
100 %.
Setting range: 1.0– 4.0
Factory setting: 1.0
Note:
If this factor is increased, there is a danger that the
setpoint value will also not be reached with a higher
flow rate value, because the Yout value takes the value
100 % prematurely.
Содержание WALLACE & TIERNAN MFC
Страница 1: ...WALLACE TIERNAN MULTI FUNCTION CONTROLLER MFC from version V 2 00 INSTRUCTION MANUAL...
Страница 2: ...2 WT 050 580 000 DE IM 0714 MFC Please note Original manual...
Страница 6: ...6 WT 050 580 000 DE IM 0714 Introduction MFC 1...
Страница 40: ...40 WT 050 580 000 DE IM 0714 Description MFC 3...
Страница 225: ...MFC Complete Devices Retrofit Kits and Spare Parts 8 225 DEPOLOX 5 drawing non pressurised version W3T170031 W3T170031...
Страница 229: ...MFC Complete Devices Retrofit Kits and Spare Parts 8 229 DEPOLOX 5 drawing pressurised version W3T170032 W3T170032...
Страница 233: ...MFC Complete Devices Retrofit Kits and Spare Parts 8 233 VariaSens drawing non pressurised version W3T158742 W3T158742...
Страница 237: ...MFC Complete Devices Retrofit Kits and Spare Parts 8 237 VariaSens drawing pressurised version W3T158756 W3T158756...
Страница 247: ...MFC Certificates 10 247 10 Certificates...
Страница 248: ...248 WT 050 580 000 DE IM 0714 Certificates MFC 10...
Страница 249: ...MFC Certificates 10 249...
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Страница 262: ...262 WT 050 580 000 DE IM 0714 Settings table MFC 11...
Страница 266: ...266 WT 050 580 000 DE IM 0714 Index MFC 12...