CONTROLLED AUTOMATION, INC.

ANGLELINE RETROFIT

MACHINE CALIBRATION – PINCHWHEEL

1. INITIALLY SET THE FRAME OFFSET CONSTANTS

Measure from the zero photoeye to the center of each punch and to the outfeed edge of the shear blade. Enter these dimensions as the frame offset constants for each unit.

2. INITIALLY SET THE PINCHWHEEL COUNTS PER INCH (CPIN)

In the MACHINE SETUP, set the TRIM to N, set the TRIMLEN to zero (blank), and set the CUT to N. Hit the Escape key to return to the MAIN MENU and then reboot the computer. Make sure that the LEN, LEN_OFF, ZEROEYE constant is set to zero (blank).

Run a test part with a mark on the WEB leg 1" from the front end and at any appropriate gauge. Adjust the LEN, LEN_MOTOR, CPIN constant so the mark is fairly close to the programmed location in the LEN axis. Ignore the gauge location for now.

Increase the CPIN constant if the mark is shorter than 1".

Decrease the CPIN constant if the mark is longer than 1".

3. CALIBRATE THE PINCHWHEEL COUNTS PER INCH (CPIN)

With the TRIM set to N, the TRIMLEN set to zero (blank), and the CUT set to N in the MACHINE SETUP, run a test part with a mark at 2" and 20'2" from the front end and at any appropriate gauge. Measure the distance between the marks. If the measured distance is not exactly 20', use the following formula to calculate a new CPIN.

CURRENT CPIN x PROGRAMMED DIST. (in inches) = TOTAL COUNTS

NEW CPIN = TOTAL COUNTS / MEASURED DIST. (in inches)

See the example on the next page.

Enter the new counters per inch in the constant field LEN, LEN_MOTOR, CPIN. Run the same program again, with the marks at a different gauge, to check accuracy.

EXAMPLE

1290.0000 x 240 (20’)= 309600.0

NEWCPIN = 309600.0 / 239.75 (19’11”3/4)

NEWCPIN = 1291.3452

4. CALIBRATE SHEAR FRAME OFFSET

In the MACHINE SETUP, set the TRIM to Y, set the TRIMLEN TO 1/2", and set the CUT to Y. Hit the Escape key to return to the MAIN MENU and then reboot the computer.

Using a piece of stock with the front end already sheared square, run a test part 6” long and no holes or marks in either leg. Adjust the CUT, CUT_OFF, FRMOFF constant so the trim cut is actually 1/2”.

Increase constant if trim cut is too short.

Decrease constant if trim cut is too long.

5. CALIBRATE WEB FRAME OFFSET & GAUGE

On the same test part, add a mark on the WEB leg 1” from the end and at any appropriate gauge. Run the test part still using the 1/2” trim cut. Adjust the WEB, WEB_OFF, FRAMEOFF constant so the mark is actually 1” from the end after the trim cut.

Increase constant if mark is shorter than 1”.

Decrease constant if mark is longer than 1”.

If the gauge is not correct, adjust the WEB, WEB_VALVE, INITVAL constant so it is correct.

Increase constant if gauge of mark is larger than programmed gauge.

Decrease constant if gauge of mark is smaller than programmed gauge.

6. CALIBRATE TF FRAME OFFSET & GAUGE

On the same test part, add a mark on the TF leg 1” from the end and at any appropriate gauge. Run the test part still using the 1/2” trim cut. Adjust the TF, TF_OFF, FRAMEOFF constant so the mark is actually 1” from the end after the trim cut.

Increase constant if mark is shorter than 1”.

Decrease constant if mark is longer than 1”.

If the gauge is not correct, adjust the TF, TF_VALVE, INITVAL constant so it is correct. Increase constant if gauge of mark is larger than programmed gauge.

Decrease constant if gauge of mark is smaller than programmed gauge.