Yaskawa i80M Connecting Manual - Manual (Page 283)

(5) Spindle Indexing Function Expansion Inputs
To support various spindle indexing sequences provided by the aforementioned spindle inde-
xing function, the control offers the following two inputs.
(a) SIDX: Spindle indexing restart input
When this input is closed while the spindle indexing function execution state output
is ON, the control halts spindle indexing and turns OFF the output. When spindle
indexing is halted in this manner, the spindle rotating speed command analog output serves
as the spindle indexing start rotating speed command.
When this input is turned OFF in
this state, the control restarts spindle indexing.
(b) : Spindle indexing position designation incremental input
This input works so that the spindle indexing position designation input which
is prepared to permit multiple spindle indexing to different positions, functions to designate
the incremental position relative to the previous spindle indexing position.
With this input, it is possible to move from the current index position to the next without
causing the spindle to make one revolution. However, turning this input ON does not pro-
vide incremental position designation when the first spindle indexing operation is per-
formed after spindle rotation or power ON.
(c) Typical time chart of spindle indexing function expansion input based spindle indexing
i) When a spindle indexing operation is repeated because the preceding spindle indexing
operation has not been completed within the specified time (Fig 21. 22)
SPINDLE INDEXING
“START
SPINDLE INDEXING
Fig. 21.22 Spindle Indexing Time Chart
[When a spindle indexing operation is repeated be-
cause the preceding spindle indexing operation has
not been completed within the specified time]
ii) When clamping the spindle indexing operation mechanism, conducting machining, and
performing indexing at a position away from the previous indexed position (Fig 21. 23)
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