Operation When Spindle Tool Is Changed - Mitsubishi Electric M800VW Series Programming Manual

M800V/M80V Series PLC Programming Manual (2/2)
14 PLC Help Function
14.15 Tool Life Management (Machining Center System)

14.15.4 Operation When Spindle Tool is Changed

After a spindle tool is changed, usage of the tool is monitored by cumulating the number of cuttings or the cutting hours.
When the spindle tool has reached the end of its tool life, the "Tool life over" signal (XC2E) is output.
For the tool life management II, the setting how and when the cumulative number of mountings or cuttings will be incremented
can be set by the parameter "#1277 ext13/bit0". The condition to output "tool group life over (XC2F)" signal will be changed
accordingly.
(1) When the spindle tool is changed with the tool change command (e.g. M06), set the spare tool No. (which is set in
R11802, R11803) in the R register for tool No. of the spindle tool (R12200, R12201) by the user PLC processing.
(For examples of user PLC processing, see "14.15.6 User PLC Processing".)
(2) The tool data corresponding to the tool No. of the spindle tool is output to the R register for the active tool (R11824 to
R11847) at constant intervals.
(3) Based on the spindle tool data registered in the tool life management data, the cumulative cutting hours or cumulative
number of cuttings for the spindle tool is counted.
(4) When the spindle tool has reached the end of its tool life, the "Tool life over" signal (XC2E) is output. When all the tools in
the group have reached the end of their tool lives, the "Tool group life over" signal (XC2F) is output. (Tool life manage-
ment II)
Note
(1) When the group No. for active tool which was output to R11824, R11825 is as follows, the tool data is exempt from the
tool life management.
 Tool life management I/ II: "-1"
 Tool life management III: a value other than "1"
In this case, the tool No. for active tool which was output to R11826-R11827 is the same No. as that specified in R12200,
R12201. The NC does not count cumulative cutting hours and cumulative number of cuttings of the spindle tool.
<When a tool is changed>
Spare tool No.
(R11802, R11803)
Spindle tool No.
(R12200, R12201)
Active tool data
(R11824 to R11847)
IB-1501668-B
(1) After changing the tool, set the spare tool No. in R register for the spindle
tool No. (R12200, R12201). (PLC -> NC)
NC Tool management data
(NC internal data)
(2)
(4) When the tool has
(2) When the spindle tool No. is changed, the NC assumes that the
spindle tool has been changed, and searches the tool data of the
new spindle tool in the tool management data.
The NC executes the tool life management and the tool
compensation based on the searched data.
It also outputs the tool data to R11824 to R11847 at a constant
cycle.
650
(3) Counts cumulative cutting
hours and cumulative
number of cuttings
"Tool life over" signal
(XC2E)
"Tool group life over" signal
reached the end of
(XC2F) (Tool life management II)
its tool life