DMC-21x3 Accessories Chapter 11 SDM-20640/20620• 71
Configurations for SDM-206x0
The AG command sets the current on each axis and the LC command configures each axis’s
behavior when holding position. These commands are detailed below:
Current Level Setup (AG Command)
AG configures how much current the SDM-206x0 delivers to each motor. Four options are
available: 0.5A, 1.0A, 2.0A, and 3.0Amps (Note: when using the 3.0A setting, a cooling fan or
adequate air flow is recommended).
Drive Current Selection per Axis: AG n,n,n,n,n,n,n,n
n = 0 0.5 A
n = 1 1 A (default)
n = 2 2 A
n = 3 3.0 A
Low Current Setting (LC Command)
LC configures each motor’s behavior when holding position (when RP is constant) and has
three possible configurations:
LC command set to 0 “Full Current Mode” - causes motor to use 100% of peak current
(AG) while at a “resting” state (profiler is not commanding motion). This is the default
setting.
LC command set to 1 “Low Current Mode” - causes motor to use 25% of peak current
while at a “resting” state. This is the recommended configuration to minimize heat
generation and power consumption.
LC command set to 2 causes motor to use zero current while at a “resting” state. This
setting is for a motor-off condition at rest.
Percentage of full (AG) current used while
holding position with LC n,n,n,n,n,n,n,n
n = 0
100%
n = 1
25%
n = 2
0%
The LC command must be entered after the motor type has been selected for stepper motor
operation (i.e. MT-2,-2,-2,-2). LC is axis-specific, thus LC1 will cause only the X-axis to
operate in “Low Current” mode.
Abort Input Options
See Appendix A.
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