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3.4.2.1
Output
of T-functions
(tool numbers and tool store numbers)
The T-Code is provided as a static signal. The impulse duration
of the T-gating signal is determined
by
machine parameters 120 and 121 (compare 3.4.1 Output of M--functions).
After duration
of the time period
programmed
with 122, the control
input is interrogated
for the feedback signal: "Auxiliary
function
completed".
When this input is at + 24 V the T-code signals are cut-out and the program resLlmed. If the input is inactive
(at 0 V) the T-signals are output and program run is interrupted
until the input is re-activated (at + 24 V).
The TNC 1 tSl/TNC
155 permits programming
of tool numbers from 1 to 254. The tool numbers 1 - 99 in
8-4-2-BCD-code
are only output
in the programmed
tool call blocks; for tool numbers and tool store numbers
greater than 99, all 8 output
relays pick-up. In addition
to the tool number, the tool call block contains the
data for the spindle speed S.
17
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