Applied Motion RS-232 - Manual (Page 44)

44 920-0002 Rev. I
2/2013
Host Command Reference
CA - Change Acceleration Current
Compatibility: STM Integrated Step Motors
Affects:
Motor accel/decel current and torque
See also: PA, CC, PC commands
Sets or requests the accel/decel current setting (“peak of sine”) of the stepper drive, also known as the peak
current. CA will only accept parameter values equal to or larger than the current CC setting.
NOTE: CA has no effect in Command Mode 7 (CM7 - Step and Direction mode).
Command Details:
Structure CA{Parameter #1}
Type BUFFERED
Usage READ/WRITE
Non-Volatile YES
Register Access “M” (029)
Note: The CA command uses different units than the “M”
register; see Data Registers section for details
Parameter Details:
Parameter #1 Accel/Decel Current
- units amps (resolution is 0.01 amps)
- range STM23: 0 - 5.0
STM17: 0 - 2.0
Configurator software may also be used to set all current levels.
Example:
STM17, STM23
Command Drive Sends Notes
CA1.75 - Set accel/decel current to 1.75 amps (peak of sine)
CA CA=1.75