NSK EDD Megatorque Motor - In-Position Limit: Parameter in; Parameter IS

7. Operational Function
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7.2.6.4. In-position Limit: Parameter IN
 This parameter states positioning accuracy.
 The output IPOS closes when the absolute values in the error counter is less or equal to the setting value of
the parameter IN.
 The unit is the resolution of the position sensor (pulse).
Table 7-24: Resolution of position sensor
Motor type
Resolution (count/revolution)
PS
2 621 440
 For example, the following formula shows how to convert the repeatability of ± 100 seconds,
which is to be specified for a Motor, to the unit of pulse.
IN setting
=
Resolution
×
Repeatability
[degree]
360
=
2 621 440
×
100
=
202 [pulse]
360
3600
7.2.6.5. Parameter IS: In-position Stability Timer
 This is to check the stability of positioning operation.
 In case of the IPOS mode, the output IPOS signal might become unstable at settling stage of a positioning
if the parameter IN is set to low value (approximately IN100 or lower) even the servo gain is well tuned.
 Setting the parameter IS is to prevent the problem.
 In case of both CFIN mode and FIN mode, the setting of parameter IS prevents outputting IPOS signal
before the Motor settles in the position.