WESTLOCK CONTROLS CORPORATION
280 N. MIDLAND AVE., STE. 258, SADDLE BROOK, NJ 07663 TEL: 201-794-7650 FAX: 201-794-0913
www.westlockcontrols.com
10/5/2013
TECH-477/D.W.O. 21424
Page 156 of 206
To create a new characterization curve, use the following procedure:
-Write in the “Number of Coordinates” field the number of coordinates that the table will
have.
-Press Coordinates, the EDD will show a group of X and Y fields for each coordinate.
-After setting every coordinate, press the OK button to close the coordinates window.
-Press the button labeled “Write Table” in the right side of the graph area. The process
of writing all coordinates in the device. This will take a few seconds to finish.
-Close the Characterization curve and open it again, to force the EDD to plot the current
characterization curve.
Below the graph, in the “Status (Characterization)” field, the DTM will inform if the write
has been successful or if there was any problems.
For more information about each parameter of this directory, see the chart below:
Flow Type: Set the type of set point characterization curve. The following
options are available:
-
Linear
: the analog output setpoint from the analog output is set directly to the
servo PID setpoint;
-
Equal Percentage
: the analog output setpoint is used as a parameter for the
equal percentage function to set the servo PID setpoint;
-
Quick Opening
: the analog output setpoint is used as a parameter for the
quick opening function to set the servo PID setpoint;
-
User defined (table):
the analog output setpoint is characterized using a table
defined by the user to set the servo PID setpoint. (
See the Characterization
Curve section to get details how to enter this table).
Min Number of
Coordinates:
Informs the minimal number of coordinates supported by the
device.
Max Number of
Coordinates:
Informs the maximum number of coordinates supported by the
device.
Number of
Coordinates:
The actual number of coordinates currently stored in the device.
Change this parameter to the intended number of coordinates
before setting up a new curve.
Status
(Characterization):
Current status of the transmitted table. This parameter will display
one of the following status:
-
Not initialized
: There is no valid curve to use;
-
Good
: The written table is valid, and ready to be saved;
-
Table is currently loaded
: The table is ready to be used;
-
Sorting and checking of Table
: Sorting and checking the written table;
-
Not monotonous increasing:
- Not monotonous decreasing:
-
Not enough values transmitted:
The written table has less than the minimum
number of coordinates;
-
Too many values transmitted:
Exceeded the maximum number of
coordinates;
-
Gradient of edge too high:
- Values not accepted:
The written table doesn’t have all the requisites of a
valid curve.
