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8 Electronic Cam8.9 Application Examples (Application of H3U-PM to Strapping Band Winding Machines)
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[n] indicates the number of key points. (m2 + n – 1) must be less than or equal to the number of
downloaded key points.
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Notes:
1) CAMRD instructions are used to read cam table data in mechanical units, and the read data
is interpreted as oating points. Cam tables to be read must exist in the PLC; that is, the cam
tables have been downloaded to the PLC through AutoShop.
2) (m2 + n – 1) must be less than or equal to the number of downloaded key points.
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Example:
When M10 is set to ON, the PLC executes DECAMRD instructions to read the cam table. The read data is
stored as oating points in D elements starting with D200.
Master and slave axes of each key point occupy two 32-bit registers; that is, each key point occupies four D
elements. If ve points are read, from the rst point, (D201, D200) indicates the master axis position, (D203,
D202) indicates the slave axis position, and so on. Twenty D elements are occupied.
8.9 Application Examples (Application of H3U-PM to Strapping Band
Winding Machines)
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Overview
This solution describes the application of Inovance H3u-PM motion control PLCs to strapping band winding
machines. Different from traditional wire ranging way, the H3u-PM+IS620P electronic cam solution is
undemanding for the mechanical structure of devices, which makes it easy to change strapping band width
and winding width.
HMI
H3U-0808PMRTA
IS620P
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Strapping Band Winding Machine
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