— 9-10 —
9.1.8.2. Parameter “IN”
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Parameter “IN” is to decide positioning accuracy.
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“IPOS” output will be closed when residual pulses of position error counter are within the range of
“IN” parameter.
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The unit of parameter “IN” value is the maximum resolution (pulses) of the motion detector
(resolver).
Table 9-2
[Unit: pulse/r]
Motor series
Resolution
YS, JS1, JS2, RS
614 400
SS
491 520
AS, BS, JS0
409 600
u
Example (YS series)
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Desired positioning accuracy (repeatability) : ±100 sec.
resolver resolution
“IN” set value =
360
× repeatability (degree)
614 400
100
=
360
×
3 600
= 47 pulses
9.1.8.3. Parameter “IS”
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“IS” is to confirm the stability of the positioning. In case of in-position output signal is IPOS format,
if the parameter “IN” value is smaller (roughly less than IN10), “IPOS” output will be instable in a
moment of positioning settling, even all the servo gains are adjusted properly.
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“IS” parameter should be set to eliminate above instability.
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When “IPOS” output is in “FIN” mode, “IS” parameter prevents to output IPOS signal before the
Motor completes the positioning.
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