5. TOOL FUNCTION (T FUNCTION)
1 The correspondence between commandable T codes and
tools depends upon machine tool builders.
The commandable T codes are set in tool registering screen
before shipment from factory (III-10.8). If a commanded T
code was not registered, alarm (No. 4602) is produced.
2 No T code is commandable in the following blocks.
(i) G10 (Offset value setting)
(ii) G22 (Stored stroke limit function on)
(iii) G23 (Stored stroke limit function off)
(iv) G92 (Coordinate system setting)
(v) G52 (Local coordinate system setting)
(vi) G72 (Standard point command)
(vii) G75 (Automatic repositioning)
(viii) G98 (Base point command for multi-piece machining)
(ix) G73, G74 (Multi-piece machining command)
3 If tape or memory operation is made in the T command
neglect status, the T command is ignored, and the operation
is made as if the T command were not given.
The press start signal is not sent to the machine side in a
block to be punched, and processing does not proceed to
the next block. If a program is checked by marking to a
workpiece by using a marking tool, for example, select the
marking punch tool by a T command in the MDI mode in
advance, and perform the tape or memory operation without
reset operation in the T command neglect status. Now,
punching is made using the tool selected in the MDI mode.
4 If automatic operation is applied to the machine side by the
cycle start when the cycle start lamp signal is not sent, i.e.,
in the reset status, the cycle start lamp signal is sent.
If a block to be punched appears before a T command is
given after this cycle start lamp signal has been sent, the
press start signal is not sent to the machine side, and also
machining does not proceed to the next block.
The cycle start lamp signal is stopped by reset operation.
5 The press start signal can be sent by setting a parameter
TCF (No. 16003#5) even if no T command is given to a block
before the block where the punching is made or the block
in which punching is made. In this case, the integrated
value of the number of punch times may differ from actual
number of punch times about respective tools.