112 •Appendix C Command Reference DMC-21x3 Accessories
LC
FUNCTION: Low Current Stepper Mode
DESCRIPTION:
Causes the amp enable line for the specified axes to toggle (disabling the stepper drives)
when the respective axes stop (profiler holding position). Each axis is handled
individually with either full, 25%, or no current at rest. This will reduce current
consumption, but there will be low or no holding torque at rest. The MT command
must be issued prior to the LC command.
ARGUMENTS: LC n,n,n,n,n,n,n,n where
n = 0 Normal (stepper drive always on)
n = 1 Low current stepper mode (25% holding current)
n = 2 No current stepper mode (0% holding current) (AMP 206x0 only)
n = ? Returns whether the axis is in low current stepper mode
Low Current Setting Current: LC n,n,n,n,n,n,n,n
AMP 20240 AMP 206x0 External Drive
n = 0
100% 100% 100%
n = 1
25% * 25% 0%
n = 2
N/A 0% 0%
* LC function for SDM
20240 requires jumper
installation at JP1.
USAGE: DEFAULTS:
While Moving Yes Default Value 0
In a Program Yes Default Format 1.0
Command Line Yes
Controller Usage
ALL CONTROLLERS
EXAMPLES:
MTZ=2 Specify stepper mode for the z axis
LCZ=1 Specify low current mode for the z axis
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