Instruction Manual

SETUP
MILLPWR
®
Operation Manual
7-32
MILLPWR includes two circle interpolation tests. The small circle test checks for machine-
related problems—an unbalanced ballscrew or poor gib adjustment, for example. The large
circle test checks whether or not the motors are in tune.
The circle should maintain its original shape (fluctuations up to 0.0005” are normal). If
fluctuations exceed 0.0005”, the system may require adjustment (refer to the Trouble-
shooting Guide for recommended solutions). The examples on the next page illustrate
some of the problems that can be detected. For accurate results, do not run the circle test
while the spindle is under a cutting load.
You have the option of saving the test results onto a floppy disk for later review.
Circle Interpolation Test
To run the circle interpolation test:
• From the Diagnostics screen, highlight "Circle Interpolation Test" and press ENTER.
• Check that the table has at least 3” of clearance for each axes.
• Press either the
SMALL CIRCLE TEST or LARGE CIRCLE TEST softkey.
• (Optional) When the test is completed, insert a floppy disk into the
MILLPWR disk
drive and press the SAVE TO FLOPPY softkey. After MILLPWR has finished saving,
remove the disk.
• Press the EXIT TEST softkey
to close the “Circle Inter-
polation Test” screen.
• Continue with Diagnostics or
press the
USE NEW SETTINGS
softkey.