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POWERSTEP01 Datasheet(PDF) 27 Page - STMicroelectronics

Part # POWERSTEP01
Description  System-in-package integrating microstepping controller and 10 A power MOSFETs
PDF  92 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

POWERSTEP01 Datasheet(HTML) 27 Page - STMicroelectronics

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DocID025022 Rev 5
27/92
powerSTEP01
Functional description
92
Figure 10. Positioning command examples
7.7.3
Motion commands
Motion commands produce a motion in order to perform a user-defined number of
microsteps in a user-defined direction that are sent to the device together with the command
(see Figure 11).
Performed motor motion is compliant to programmed speed profile boundaries
(acceleration, deceleration, minimum and maximum speed).
Note that with some speed profiles or motion commands, the deceleration phase can start
before the maximum speed is reached.
Figure 11. Motion command examples
7.7.4
Stop commands
A stop command forces the motor to stop. Stop commands can be sent anytime.
The SoftStop command causes the motor to decelerate with a programmed deceleration
value until MIN_SPEED value is reached and then stops the motor keeping the rotor
position (a holding torque is applied).
AM12857v1
Forward
direction
0
-2
21
+2
21-1
0
-2
21
+2
21-1
Present
position
Target
position
Present
position
Target
position
GoTo(Target pos)
GoTo_DIR(Target pos,FW)
programmed
ACCELERATION
SPEED
programmed
maximum
speed
programmed
minimum
speed
time
programmed
DECELERATION
programmed number of microsteps
programmed
ACCELERATION
SPEED
programmed
maximum
speed
programmed
minimum
speed
time
programmed
DECELERATION
programmed number of microsteps
Note: with some
acceleration/decelaration profiles
the programmed maximum speed
is never reached
AM15163v1



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