6
Setting Trigger Points (contd)
Error Factor Effect on Spray Patterns
The triggering controller has an error factor of one
real-world unit. For example, if the controller scale is
inches, the error factor is one inch. This factor can
affect coverage if lead and lag values are not
calculated properly.
The lead and lag values you set apply to all parts
entering the booth. When setting lead and lag values
make sure to take into account the error factor.
For example, if both lead and lag are set to -2 inches
and parts five inches long or less are placed on the
conveyor, they will not be coated. The lead and lag
values subtract four inches from the length of part
and the error factor subtracts the remaining inch,
leaving a zero length to coat.
Entering Trigger Points
Use the following steps to enter pickoff, lead, and lag
values for each trigger output.
1. Press the MODE key until Setpoint Adjustment
appears.
2. Press the OK key to enter Setpoint Adjustment
mode. The Pickoff Output 1 menu appears. If it
does not press one of the Select keys until it
does.
3. Press the OK key to enter edit mode. Enter the
Measure value from the Finding Starting Pickoff
Points procedure. Press the OK key to accept
the value and exit edit mode.
4. Press the SELECT+ key to go to the Lead
Output 1 menu.
5. Press the OK key to enter edit mode. Use the
SELECT keys to enter the desired lead value.
Press the OK key to accept the value you entered
and exit edit mode.
6. Press the SELECT+ key to go to the Lag
Output 1 menu.
7. Press the OK key to enter edit mode. Use the
SELECT keys to enter the desired lag value.
Press the OK key to accept the value you entered
and exit edit mode.
8. Press the SELECT+ key to go to the Pickoff
Output 2 menu.
9. Repeat steps 3 through 8 to enter pickoff, lead,
and lag values for the rest of the outputs.
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