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NSK Megatorque PS Series User Manual

NSK Megatorque PS Series
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— 8-36 —
8.6.4. User Scale Positioning
The dividing number of entire circumference of Motor rotation can be set to the unit of
positioning command. Thus, the following positioning can be easily performed.
An index positioning in units of 90 angle degree (dividing number = 4)
A positioning in units of 1/1000 angle degree (dividing number = 360 000)
A positioning in units of the same circumference resolution of other Motor
The parameter QR (Dividing number, user scale) specifies the dividing number of total
circumference.
The commands AQ and IQ (Positioning command, user scale) execute a positioning whose
dividing number is specified by the parameter QR.
Use the monitor TQ (Tell current position, QR unit) to read out the current position in units of
dividing number.
Table 8-34: Command and parameter related to user scal positioning
Category
Name
(code)
Function
Initial
setting
Data range Unit
IQ Incremental positioning with user scale 0 to ± QR×100
AQ
Absolute positioning with user scale
(Shorter way)
0 to QR-1
AQ/PL
Absolute positioning with user scale
([+ direction] [Example: AQ180000/PL])
0 to QR-1
Command
AQ/MI
Absolute positioning with user scale
([– direction] [Example: AQ180000/MI])
0 to QR-1
360°/parameter QR
Parameter ÌQR Dividing number for user scale positioning 360 000 1 to 2 621 440
Dividing number/
revolution
Monitor TQ Reads out the current position. (Unit: QR) 0 to QR 1 360°/parameter QR
ÌThe password is required.
For example, set the “QR4” for a positioning with units of 90-angle degree.
The figure below shows the circumference is equally divided into four grids based on
the Home position. The positioning will be performed on these grids.
Fig 8-17: Dividing example of circumference
Scale system for QR4
1
0
2
3
0°: Home position
180°
90°270°
Count up
Range 1
Range 0
Range 2
Range 3

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NSK Megatorque PS Series Specifications

General IconGeneral
BrandNSK
ModelMegatorque PS Series
CategoryEngine
LanguageEnglish

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