IX34208a_e.doc / Aug-09
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6.2. Manual Input or „Teaching“ of the Interpolation Points
Interpolation points to form the linearization curve can be entered one after another, using the
same procedure as for all other numeric parameters. This means you will enter all parameters
P01_x to P16_x and P01_y to P16_y manually by keypad.
During manual input of interpolation points the unit will not examine the settings
P01_x to P16_x. Therefore the operator is responsible for observation of the constraint
P01_X < P02_X < … < P15_X < P16_X.
In many cases it should however be much more convenient to use the Teach function.
For this we need to move the SSI encoder, step by step, from one interpolation point to the
next. Every time we enter the desired display value by keypad.
How to use the Teach Function:
x
Please select the desired range of linearization (see 4.1).
x
Hold down the “Cmd” key for 3 seconds, until the display shows “tEACh”. Now the unit
has switched over to the Teach mode. To start the teach procedure please press again
“Cmd” within the next 10 seconds. The display will then show “P01_X”.
x
With respect to the consistency required for linearization, all parameters from P01_X to
P16_Y will first be overwritten by suitable initial values. Initial values for „P01_X“ and
„P01_Y“ are -199999 and all other values will start with 999999.
x
Press once more “Cmd” to display the actual encoder position. Then move the encoder
to the first of the desired interpolation points
x
When you read the x-value of your first interpolation point in the display, press “Cmd”
again. This will automatically store the actual display value to the P01_x register. For
about 1 second you will read “P01_y “ on the display, followed by the same reading
again that has been stored previously
x
This display value now can be edited like a regular parameter, and you can change it to
the desired P01_y value
x
When you read the desired P01_y value in your display, store it by pressing “Cmd”
again. This will automatically cycle the display to the next interpolation point P02_x.
