Endress+Hauser Mycom S CPM 153 Operating Instructions Manual page 65

Mycom S CPM 153
Endress+Hauser
CODE CHOICE
(default = bold)
MD5 curr. mA value:
____ mA
MD6 curr. mA value:
____ mA
Curve:
ME1 Constant curve
Segmented curve
ME2 Setpoint
St.ntr. zone
End ntr. zone
K
1
R
K
2
R
ME3 Setpoint
St.ntr. zone
End ntr. zone
O.pnt. X1
O. pnt.Y1
O.pnt. X2
O. pnt.Y2
Ctrl.pnt.1
Ctrl.pnt. 2
ME4 Rapid process
Standard process
Slow process
User settings
K
ME5 1 =
R
K
2 =
R
Tn 1 =
Tn 2 =
Tv 1 =
Tv 2 =
INFO
Assign a value for y = 0%
Drive the valve to y = 0%.
The current current value 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.
Assign a value for y = 100%
Drive the valve to y = 100%.
Proceeding as in the previous field.
Curve type selection
Constant curve: corresponds to a constant control
gain.
Segmented curve: corresponds to a range-
dependent constant control gain.
07.00pH Values for linear curve
06.50pH
(constant control gain)
07.50pH Setpoint: the value which should be set.
01.00pH
St.ntr. zone (Start neutral zone)
01.00pH End ntr. zone (End neutral zone)
K
1 (only with alkali dosing): modulation gain for alkali
R
dosing
K
2 (only with acid dosing): modulation gain for acid
R
dosing
07.00pH Values for segmented curve
06.50pH Setpoint: the value which should be set.
07.50pH St.ntr. zone (Start neutral zone)
05.00pH End ntr. zone (End neutral zone)
00.20pH O.pnt 1 and 2 (optimization point): entry with x and y
09.00pH coordinates
-00.20pH Ctrl.pnt. 1 (control point): The dosing is 100% alkali for
02.00pH measuring values < control point.
12.00pH Ctrl.pnt. 2 (control point): The dosing is 100% acid for
measuring values > control point.
Select process character
If you have no experience in setting parameters, these
defaults rapid /standard / slow process are intended as
an aid to adapting the controller behaviour to the
process. Select a default and use the "controller
simulation" (see below) to check if these settings are
relevant for your process.
Enter all the characteristic values yourself with the user
settings.
Characteristic values for user settings:
K K
( 1 and 2 only with linear curve; Index 1 only for
R R
alkali dosing, Index 2 only for acid dosing)
K
1: modulation gain for alkali dosing
R
K
2: modulation gain for acid dosing
R
Tn: integral action time
Tv: derivative action time
6 Start-up
65