Tool Monitoring - Fagor CNC 8060 Installation Manual

I n s t a l l a t i o n m a n u a l .
7.3.4

Tool monitoring.

The PLC marks related to tool monitoring are the following. There is one group of marks for
each channel.
The following table shows the mnemonics for each mark (M) in each channel or magazine.
Channel ·1·
M CUTTINGON
CUTTINGONC1
M TREJECT
TREJECTC1
M TWORNOUT
TWORNOUTC1
The meaning of the marks and registers is as follows.
Marks / Registers.
CUTTINGON
TREJECT
TWORNOUT
Channel ·2· Channel ·3·
CUTTINGONC2 CUTTINGONC3
TREJECTC2 TREJECTC3
TWORNOUTC2 TWORNOUTC3
Meaning,
When a tool is assigned a maximum life span (monitoring), the CNC
checks this mark in order to know whether the tool is machining (=1)
or not (=0). It is usually considered to be machining when the
following conditions are met:
• The spindle is turning (M3 or M4) or when the tool is
threadcutting and the 0% of feedrate is not selected.
• The automatic operating mode is selected, there is a block in
execution and the G00 function is not active.
• The execution is not interrupted.
If the PLC sets this mark high (=1), the CNC interprets that the tool
must be rejected.
The CNC sets this mark high (=1) to "tell" the PLC that the tool has
been rejected because it is worn out (real life > maximum life span).
Channel ·4·
CUTTINGONC4
TREJECTC4
TWORNOUTC4
7.
CNC 8060
CNC 8065
(R : 1709)
EF
·459·