Mitsubishi C70 User Manual

2. CNC Monitor Screen
2.3(I) Tool Offset (L system)
(Refer to "2.3 (II). Tool Offset (M system)" for Machining center system)
I - 58
2.3.4.1 Tool Life Management Method
By setting the servic
e lifetime (or service life count) to "0" for each tool, the following four tool life
management methods can be selected.
Life management method Service lifetime setting Service life count setting
1. Time only Set to 0.
2. Count only Set to 0.
3. Time and count
4. No management Set to 0. Set to 0.
(1) Tool life management by time
The cutting time (G01, G02, G33, etc.) after a tool selection (T) command is carried out is incremented
to the usage time corresponding to the commanded tool.
If the usage time reaches the service lifetime when a tool selection command is executed, a warning is
output to the user PLC.
When the usage time reaches the service lifetime, the corresponding tool No. (#) on the TOOL LIFE
DATA screen is highlighted.
(2) Tool life management by count
The count for the commanded tool is incremented when the first cutting feed starts after a tool
selection (T) command is carried out. If no cutting feed is executed after the selection of a tool, the
count is not incremented.
If the count equals the service life count for the commanded tool when a tool selection command is
executed, a warning is output to the user PLC.
When the count exceeds the service life count (when the cutting feed starts after a tool selection
command), the corresponding tool No. (#) on the TOOL LIFE DATA screen is highlighted.
(3) Tool life management by time and count
The tool life is managed simultaneously by time and count.
If the usage time reaches the service lifetime, or the count equals the service life count for the
commanded tool when a tool selection command is executed, a warning is output to the user PLC.
When the usage time display reaches the service lifetime display, or when the count display exceeds
the service life count display, the corresponding tool No. (#) on the TOOL LIFE DATA screen is
highlighted.
(4) No management
The usage time and count are incremented, but no alarm is output to the user PLC, and the tool No. (#)
on the TOOL LIFE DATA screen is not highlighted.
2.3.4.2 Conditions for Counting (incrementing)
The u
s
age time (or count) is incremented when a cutting feed (G01, G02, G03, G33) is executed. Note that
they are not incremented in the following conditions:
• When the base specifications parameter "#1103 T_Life" is OFF.
• During machine lock
• During miscellaneous function lock (input signal from the PLC)
• During dry run
• During single block operation
• When the count ON signal of the data used is OFF. (Input signal from the PLC)

Mitsubishi C70 Specifications

General

Brand	Mitsubishi
Model	C70
Category	Control Unit
Language	English