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18. Tool Life Management
18-1 Tool Life Management
1. Feature
The tool life management function counts the tool life use values of the tools used in the
machining program according to the life units for each tool.
It compares a counted tool use value with a tool life set value to control a tool life. When
you do not want tool life management in the measuring program, control this function by a
G-code. When the power is turned on or the NC unit is reset, the G131 mode is selected.
G130 ----- Tool life management disabled
G131 ----- Tool life management enabled
2. Functioning
Tool life management carries out the following actions sequentially.
• Selecting a tool for the spindle (when a Txx command in the program is executed)
• Checking the spindle tool status (when M06 in the program is completed)
• Counting the tool life (during machining by the program)
[1] Selecting the tool for the spindle
When a Txx command is executed in the machining program, the tool life
management function selects a tool to be called to the spindle. If the Txx command is
a spare tool command, a defectless tool will be automatically selected out of a spare
tool group.
* If the selected tool is an unused one, a new tool signal is output to the PC.
(During TF)
[2] Checking the spindle tool status
The tool life management function checks the tool status of the tool called to the
spindle by the M06 command in the machining program.
• When the tool is unused → Designates the tool status “USED” or
“MONITORED.”
• When the tool is out of life → Displays a warning, “781 OUT-OF-LIFE TOOL WAS
SELECTED.” In the M56 mode, however, the
machine stops due to feedhold.
• When the tool is broken → Displays a warning, “780 BROKEN TOOL WAS
SELECTED.” The machine stops due to feedhold.
[3] Counting the tool life
When the following requirements are met, the tool life management function counts the
tool life use value of the spindle tool according to the tool life units preset for each tool.
• Under automatic operation in the MEMORY mode
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