6 Start-up
Mycom S CPM 153
64
Hauser
MC5
Function
Limit value
Kffc=1:
Kmax:
Kstop:
on
050.0
050.0
1.7
1.0
Feedforward control
(only if 2 current inputs are available)
The feedforward control has a multiplying effect, i.e.
the controller set value is multiplied with the modulation
gain Kstör.
Limit value
: if the current input signal undershoots the
set value, dosing is stopped (set value = 0). The dosing
stop is not active if you enter 0 (= no limit value)
here. (Range 0...100%)
Kffc=1
: here, enter the current input value in % at which
the feedforward gain shall have the value 1. At this
point the output set value is the same for switched-on
or switched-off feedforward control. (Range 0...100%)
Kmax
: here, the value of Kstör is displayed for a current
input signal of 100%.
Kstop
: here, the value of Kstör is displayed for
current input signal which is equal to the limit value.
Fig. 25:
Multiplying feedforward control
Feedback:
The following selection is dependent on whether you have a resistance or a current input.
With resistance input
MD1
0 ... 1 k
Ω
0 ... 10 k
Ω
Select range
for resistance.
MD2
curr. resistance:
____ k
Ω
Assign a value for y = 0 %
Drive the valve to y = 0%.
The current resistance is displayed. You can change
the valve position either manually or by pressing the
arrow keys on the transmitter. Confirm the position for y
= 0 % by pressing the "E" key.
!
Note!
If you cannot change it using the arrow keys, please
check the "Actuators" menu to see if the relays have
been assigned to valve control.
MD3
curr. resistance:
____
k
Ω
Assign a value for y = 100 %
Drive the valve to y = 100%.
Proceeding as in the previous field.
For current input 1:
MD4
y
R
= 0 ... 100 %
mA:
0 ... 20
20 ... 0
4 ... 20
20 ... 4
Select current range
and assign the percentage range.
CODE
CHOICE
(default = bold)
INFO
20
100
0
-25
4
20
0
1
current input signal in %
amplification
Kffc.
Kmax
Kstop
current input signal in mA
C07-CPM153xx-05-06-00-en-009.EPS