Rockwell-automation 8520-GUM 9/Series CNC Grinder Operation and Progra Manual de usuario descargar pdf (Pagina 335)

100

101

Chapter 11

Coordinate Control

11-19

Example 11.8

Typical Set Zero Offset Application

Operation Comment

-Manual jog- axes are manuallyjogged to a locationwherethe operatorhas

determi ned thataspecialoperation mustbe performed.

-Set Zero- operator performs a SetZerooffsetto establish the work coordinate

system zero point at the current axis location

-Run program- a genericspecial operationprogramcan now be executed fromtheaxis

coordinate positionthatresultedfromthe manualjogandSetZero

You can perform the set zero offset through an optional switch installed by

your system installer or through the {S ET ZERO} softkey as described on

page 2-11 on using the {FRONT PANEL} softkey.

You can equip your control with an optional jog offset feature. The jog

offset feature allows the operator to manually create an offset by jogging

the axes. When this function is active, all jog moves made are added as

offsets to the current work coordinate system.

Important: This feature functions only if your system installer has

supplied the appropriate PAL programming. See the “Jog Offsets” and

“Jog-on-the-fl y” PAL flags in your PAL reference manual or the

documentation supplied by your system installer.

Normally, jogging occurs in the manual mode. Your system installer has

the option to enable a “Jog on the Fly” feature (through PAL) that allows

jogging in automatic or MDI modes for the purpose of j ogging an offset or

performing manual gap elimination. See page 4-6 for details on manual

gap elimination. To jog in an offset in automatic or MDI mode, both the

“Jog on the Fly” and jog offset features must be active. Seedocumentation

provided by your system installer for details on activating these features.

You can jog an offset at any time during automatic or MDI operation, even

while blocks are executing.

11.4.4

Jog Offset

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Rockwell-automation 8520-GUM 9/Series CNC Grinder Operation and Progra Manual de usuario Pagina 335

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