Rockwell-automation 8520-GUM 9/Series CNC Grinder Operation and Progra Manual de usuario descargar pdf (Pagina 716)

In-process Dresser

Chapter 21

21-10

This Parameter:

(paramacro system parameter)

Range:Indicates:

* DRESSER AMOUNT PER REV

(paramacro #5505)

theamount thedresseristofeed intothe grinding wheel foreach

revolution ofthe grinding wheel. W hen thein-processdresseris

active,this amountof infeedis subtracted fromthe“CurrentWheel

Diameter” at eachwheelrevolution. This is actuallythedresseraxis

feedrate (in feed perrev)when itisdressing thewheel.

0 to9.9999999 [inch]

0 to0.000000 [mm]

* DRESSER RETRACT DISTANCE

(paramacro #5506)

thedistancethedresserroll should retractawayfromthegrinding

wheel when thein-processdresserisdeactivated. When in-process

dressingis re-activated,thedresserrollautomaticallyperforms a

retractreturnequaltothe amountof thedresser retractdistance.Ifthe

dresseris notcurrentlyretracted when the in-processdresseris

enabled,the controldoes not performtheretract return (asis the case

when afteradressercalibration operation). The dresserretractor

retractreturncan also be performed on requestwhen in thedresser

hold state. Both ofthese movesare performed on thedresseraxis.

0 to999.9999 [inch]

0 to99999.999 [mm]

* DRESSER SURF SPEED RATIO

(paramacro #5507)

theratio ofthe wheel’ssurfacespeed totheroll dressersurface

speed. A ratioof 1.00wouldrotatethe dresserand the wheel atthe

samerelativesurface speed. A ratioof0.50 would rotate thedresser

atone half the surface speed ofthewheel. A ratioof 1.50would

rotate the dresserat one and one-halftimesthe surfacespeed ofthe

wheel. Surfacespeed of thewheeliscontrolledthrough yourpart

programand CSS. Surfacespeed oftheroll dresseris controlled

throughPAL and calculated fromthe“DresserRoll Diameter”,

“DresserSurface Speed Ratio”,and the currentsurfacespeedof the

grindingwheel. The sign of thisparameterindicatesthe directionthat

thedresserwill rotaterelativetothe grindingwheel: “+”equalsthe

samedirectionand “--”equalsthe oppositedirection.

0 to99999.00

* This parameter can be configured by the operator on this screen. Other parameters are assigned by the control or PAL during calibration or dressing.

Entering In-process Dresser Parameters

This section covers entering parameter values into t he in-process dresser

table manually. You can also enter values in this table through

programming with paramacro system parameters (#5500-#5509). See

chapter 20 for details on assigning values to system parameters.

1. Press the {OFF SET} softkey on the main menu screen.

(softkey level 1)

PRGRAM

MANAGE

OFFSET MACRO

PARAM

PRGRAM

CHECK

SYSTEM

SUPORT

FRONT

PANEL

ERROR

MESAGE

PASS-

WORD

SWITCH

LANG

1 2 ... 711 712 713 714 715 716 717 718 719 720 721 ... 819 820

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