Galil Motion Control DMC-40x0 Series User Manual

112 ● GA DMC-40x0 Command Reference
GA
FUNCTION: Master Axis for Gearing
DESCRIPTION:
The GA command specifies the master axes for electronic gearing. Multiple masters for gearing
may be specified. The masters may be the main encoder input, auxiliary encoder input, or the
commanded position of any axis. The master may also be the commanded vector move in a
coordinated motion of LM or VM type. When the master is a simple axis, it may move in any
direction and the slave follows. When the master is a commanded vector move, the vector
move is considered positive and the slave will move forward if the gear ratio is positive, and
backward if the gear ratio is negative. The slave axes and ratios are specified with the GR
command and gearing is turned off by the command GR0.
ARGUMENTS: GA n,n,n,n,n,n,n,n or GAA=n where
n can be A,B,C,D,E,F,G, H, M or N. The value of n is used to set the specified main encoder axis
as the gearing master and M and N represents the virtual axes. The slave axis is specified by
the position of the argument. The first position of the argument corresponds to the 'A' axis,
the second position corresponds to the 'B' axis, etc. A comma must be used in place of an
argument if the corresponding axes will not be a slave.
n can be CA,CB,CC,CD,CE,CF,CG or CH. The value of x is used to set the commanded position
of the specified axis as the gearing master.
n can be S or T. S and T are used to specify the vector motion of the coordinated system, S or T,
as the gearing master.
n can be DA,DB,DC,DD,DE,DF,DG or DH. The value of n is used to set the specified auxiliary
encoder axis as the gearing master.
USAGE: DEFAULTS:
While Movin
g
No Default Value
In a Pro
g
ra
m
Yes Default Format
Command Line Yes
Controller Usage
ALL CONTROLLERS
RELATED COMMANDS:
GR Gear Ratio
GM Gantry Mode
EXAMPLES:
#GEAR ;'Gear program
GA ,A,T ;'Specify A axis as master for B and vector motion
;'on T as master for C
GR ,.5,-2.5 ;'Specify B and C ratios
JG 5000 ;'Specify master jog speed
BGA ;'Begin motion
WT 10000 ;'Wait 10000 msec
STA ;'Stop
AMA ;'Wait for motion to complete
EN ;'End Program
Hint: Using the command position as the master axis is useful for gantry applications. Using the vector
motion as master is useful in generating Helical motion.

Galil Motion Control DMC-40x0 Series Specifications

General

Brand	Galil Motion Control
Model	DMC-40x0 Series
Category	Controller
Language	English