Rockwell Automation 8520 9/Series CNC Lathe User Manual

Page 480

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Tool Control Functions

Chapter 20

20-24

The following program blocks assign tools to groups, length and cutter

compensation offset numbers, and expected tool life to specific tools. This

information is assigned to the last group number programmed in a block

using the P-word. The format for these blocks is:

T__ H__ D__ L__;

Where :

Is :

T__

The value entered with the T-word is the tool number of the tool to be assigned to

that group.

H__

The value entered with the H-word is the tool length offset number from the tool

geometry and wear tables that is to be assigned to this tool. The H-word is only

valid if programmed in the same block as a T-word.

D__

The value entered with the D-word is the tool radius number from the tool

geometry and wear tables that is to be assigned to this tool. The D-word is only

valid if programmed in the same block as a D-word.

L__

The value entered with the L-word is used to program the value of the expected

tool life for that tool. The controls interpretation of this is dependant on the value

set with the I-word in this program block. The value programmed with the L-word

remains active for all following tools in that group until replaced with a different

L-word, or a new tool group is programmed with a P-word.

All of the tools should then be programmed for that group in individual

blocks. When all of the tools for that group have been entered, change

groups by programming a different P-word in a block.

When all of the tools for all of the different groups have been entered, end

the execution of editing the tool life management table by programming

either a M02 or M30 end of program blocks or by entering this block:

G11;

This cancels the G10 data setting mode for tool management.

Important: Any information that was contained for a specific tool group

that has been written to using a G10L3 command as described above is

overwritten by the information programmed with the G10 blocks. All

previous data for tool management for any of the groups is lost.

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