Bg (begin), Motion – Yaskawa SMC–4000 User Manual
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SMC–4000 User Manual
BG (Begin)
[Motion]
DESCRIPTION:
The BG command starts motion. When used as an operand, the BG command will return a 1 if there is a
commanded motion in progress, a 0 otherwise. The BG command will result in a command error if a move
is already in progress, the servo is not enabled or a limit switch is preventing motion.
ARGUMENTS: BG XYZWST or ABCD
where
X, Y, Z, W, N, S, T or A, B, C, D specify the axis or sequence. No argument specifies that motion on all
axes must be complete.
USAGE:
OPERAND USAGE:
_BGn contains a ‘0’ if motion complete on the axis, otherwise contains a ‘1’ where n is an axis letter.
RELATED COMMANDS:
EXAMPLES:
HINT:
You cannot give another BG command until current BG motion has been completed. Use the AM trippoint to wait
for motion complete between moves. Another method for checking motion complete is to test for _BG being equal
to 0.
While Moving
Yes
Default Value
---
In a Program
Yes
Default Format
---
Command Line
Yes
Can be Interrogated
No
Used as an Operand
Yes
Virtual Axis
Yes
PR 2000
Set up for a relative move
BG
Begin motion
AM
Wait until motion is complete
HM
Issue homing command
BG
Begin motion
AM
Wait until motion is complete
JG 1000
Issue jog command
BG
Begin motion
STATE=_BGX
Assign a 1 to STATE if the axis is performing
a move