9.3 UMC-750P - MRZP WIPS OFFSETS SETTINGS

The probing system needs to be calibrated before performing this procedure..

Work offsets G154 P80 / G154 P81 / G154 P82 are used to store the probing information, make sure they are cleared before starting the process.

TCPC / DWO needs to be enabled.

Setup the artifact as shown in the picture. For B axis [1] and A axis [2].

Recommended probing position are:

• For the B axis: B-20°, B 0°, B+20°.
• For the A axis: A 0°, A+90° A+180°

Perform the following steps for each rotary axis. In the event of alarm during the process refer to the Troubleshooting section at the end of the document.

Before running the probing cycles make sure that setting 254 is set to zero and macro variable #10800 is cleared to zero. Work offsets G154 P80; G154 P81; G154 P82 sould be set to zero.

Setup the artifact.

Place the spindle probe in the spindle.

Install the Calibration Sphere Assembly onto the platter. Refer to prerequisites for the location.

 Note: You will probe the sphere 3 times with the rotary at 3 different positions. Make sure that the Sphere will stay within XYZ tarvel limits when attempting to run the probing cycle at different angles.

Jog the rotary axis in the position for the first cycle

Jog X and Y axis to align the probe tip with the center of the sphere within 0.1".

Jog the Z axis to position the probe tip 0.25 away from the sphere surface.

Generate the program.

Press [EDIT] and cursor over to the VPS tab.

Navigate into MRZP Calibration folder: PROBING ➡ CALIBRATION ➡ MRZP Calibration.

Open the A, B, or C Single - Axis Rough and Finish MRZP Set template.

In the template, STEP_1, STEP_2, STEP_3 are instructions on how to run the probing cycle.

Cursor down to B and enter the Calibration Sphere diameter.

Press [CYCLE START] to run the pogram in [MDI] or [F4] for more options.

Run the probing cycle with the rotary at first position

When the first cycle is done, jog the the rotary to the second position.

Jog X and Y axis to align the probe tip with the center of the sphere within 0.1".

Jog the Z axis to position the probe tip 0.25 away from the sphere surface.

Run the same program again.

When the second cycle is done, jog the rotary to the third position.

Jog X and Y axis to align the probe tip with the center of the sphere within 0.1".

Jog the Z axis to position the probe tip 0.25 away from the sphere surface.

Run the same program for the third time.

After the last probing cycle, Z axis will be sent to the Home position and the control will output the MRZP offsets into the macro viraibles.

The control will calculate and output the Rotary Zero Points into macro variables. You do not need to specify which axis you run the MRZP for.

The control will populate the MRZP macros based on the results of the 3 probing cycles. For example: if during the 3 probe cycles at different rotary positions, Y and Z coordinates for the center of the sphere has changed and the X axis coordinate stayed within 0.002" then the rotary rotates about the X axis.

Enter the values from the macro variables into the settings as follows:

• After running B axis MRZP cycle:
  • Macro #10121 is setting 300 - MRZP X OFFSET MASTER
  • Macro #10123 is setting 302 - MRZP Z OFFSET MASTER
• After running A axis MRZP cycle:
  • Macro #10122 is setting 304 - MRZP Y OFFSET SLAVE
  • Macro #10123 is setting 305 - MRZP Z OFFSET SLAVE

Note: These variables will be over written if another probing cycle calls to write these macro variables such as when running through the procedure again for the slave axis.