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Motore di ricerca datesheet componenti elettronici |
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Motore di ricerca datesheet componenti elettronici |
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L6480H Scheda tecnica(PDF) 23 Page - STMicroelectronics |
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L6480H Scheda tecnica(HTML) 23 Page - STMicroelectronics |
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23 / 73 page  L6480 Functional description Doc ID 023278 Rev 3 23/73 6.7 Motor control commands The L6480 can accept different types of commands: ● constant speed commands (Run, GoUntil, ReleaseSW) ● absolute positioning commands (GoTo, GoTo_DIR, GoHome, GoMark) ● motion commands (Move) ● stop commands (SoftStop, HardStop, SoftHiz, HardHiz). For detailed command descriptions refer to Section 9.2. 6.7.1 Constant speed commands A constant speed command produces a motion in order to reach and maintain a user- defined target speed starting from the programmed minimum speed (set in the MIN_SPEED register) and with the programmed acceleration/deceleration value (set in the ACC and DEC registers). A new constant speed command can be requested anytime. Figure 8. Constant speed command examples 6.7.2 Positioning commands An absolute positioning command produces a motion in order to reach a user-defined position that is sent to the device together with the command. The position can be reached performing the minimum path (minimum physical distance) or forcing a direction (see Figure 9). Performed motor motion is compliant to programmed speed profile boundaries (acceleration, deceleration, minimum and maximum speed). Note that with some speed profiles or positioning commands, the deceleration phase can start before the maximum speed is reached. AM12856v1 SPD1 SPD2 SPD3 SPD4 Run(SPD2,FW) time Speed (step frequency) Run(SPD3,FW) Run(SPD1,FW) Run(SPD4,BW) Minimum speed Minimum speed |
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