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9. Exclusive Commands
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9.3.3 Spare Tool Selection System
One of the following two can be selected by using a parameter for the spare tool selection system of
the spare tool selection command in tool life management II:
(1) Selection in tool registration order (When BASE SPEC parameter #1105 T-Sel2 is set to 0.)
Spare tool is selected among the used tools of a single group in the registration number order. If
used tools do not exist, spare tool is selected among unused tools in the registration number
order. If none of used and unused tools exist, spare tool is selected among normal life tools and
abnormal tools (the former is assigned higher priority) in the registration number order.
(2) Life equality selection (When BASE SPEC parameter #1105 T-Sel2 is set to 1.)
Tool whose remaining life is the longest is selected among the used and unused tools of a single
group. If more than one tool has the same remaining life, it is selected in the registration number
order. If none of used and unused tools exist, spare tool is selected among normal life tools and
abnormal tools (the former is assigned higher priority) in the registration number order.
9.3.4 Interface
(1) User PLC
Controller
Device name Signal name Explanation
Y29A
Auxiliary function locking
signal
While this signal is input, tool life management is
not made.
Y2C8
Tool error 1 signal
This signal indicates tool error state 1. When
controller inputs the signal it changes the status in
spindle tool data to 3. (Unused tools or used tools
are changed to toll error state 1.)
Y2C9
Tool error 2 signal
This signal indicates tool error state 2. When
controller inputs the signal, it changes the status in
spindle tool data to 4. (Unused tools or used tools
are changed to toll error state 2.)
Y2CA
Usage data counter validity
signal
If this signal is not input, the usage data is not
counted.
Y2CB
Tool life management input
signal
If this signal is input to controller and the tool life
management output signal is output to PLC, tool
life management is made.
(2) Controller
User PLC
Device name Signal name Explanation
X20B
Tool life management output
signal
The controller outputs this signal to PLC while the
tool life management function is selected. (When
BASE SPEC parameter #1103 T-Life is set to 1.)