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3.  Tool Offset (M system) 

3.3  Tool Life 

 

 

 

I-127 

Refer to "3 (I). Tool Offset (L system)" for L system.

 

Display item 

Explanation 

Setting range 

FORM 

 

Tool life control mode 

Tool diameter compensation data 

Tool length offset data format 

 

(a) Tool life control mode 
   0:  Use time 
 

Controlled by the time during which cutting feed 
is performed. 

   1:  Mount count 
 

Controlled by the number of times the tool is 
used as a spindle tool. Note that if cutting feed 
(G01, G02, G03, etc.) is not commanded even 
once after the tool is set as the spindle tool, the 
mounting will not be counted. 

   2:  Work count 
 Work 

count 

 

The work count is made whenever a rapid 
traverse feed (G00, etc.) command is replaced 
by a cutting feed command (G01, G02, G03, 
etc.). However, rapid traverse feed or cutting 
feed commands inducing no movement are 
ignored. 

 

 

G00 G01

G04

G00

G00 

G01

G04

G01

Cutting feed

Increment by 1

Cutting feed

Increment by 1

 

 
(b) Tool diameter compensation data format 
   0:  Compensation number 
 

Compensation data in tool data is handled as 
compensation number. It is replaced with the 
compensation number commanded in a work 
program for compensation. 

 
   1:  Addition compensation amount 
 

Compensation data in tool data is handled as 
addition compensation amount. It is added to the 
compensation amount indicated by the 
compensation number commanded in a work 
program for compensation. 

 
   2:  Direct compensation amount 
 

Compensation data in tool data is handled as 
direct compensation amount. It is replaced with 
the compensation amount indicated by the 
compensation number commanded in a work 
program for compensation.