
BASIC commands
PROGRAMMING MANUAL
65
R
e
vi
si
o
n
1
.0
3.2.61 CONNECT
/i
fig. 15
/i
Type
Axis command
Syntax
CONNECT(ratio, driving_axis)
CO(ratio, driving_axis)
Description
The
CONNECT
command connects the demand position of the base axis to
the measured movements of the axis specified by
driving_axis
to achieve an
electronic gearbox.
The ratio can be changed at any time by executing another
CONNECT
com-
mand on the same axis. To change the driving axis the
CONNECT
command
needs to be cancelled first.
CONNECT
with different driving axis will be
ignored. The
CONNECT
command can be cancelled with a
CANCEL
or
RAPIDSTOP
command. The
CLUTCH_RATE
axis parameter can be used to
set a specified connection change rate.
CONNECT
works on the default basis axis (set with
BASE
) unless
AXIS
is
used to specify a temporary base axis.
CONNECT (1,1)
CONNECT (0.5,1)
CONNECT (2,1)
Arguments
•
ratio
The connection ratio of the gearbox. The ratio is specified as the encoder
edge ratio (not units). It holds the number of edges the base axis is
required to move per edge increment of the driving axis. The ratio value
can be either positive or negative and has sixteen bit fractional resolu-
tion.
•
driving_axis
The Master axis which will drive the base axis.
Note: To achieve an exact connection of fractional ratio’s of values such
as 1024/3072 the
MOVELINK
command can be used with the continu-
ous repeat link option set to ON.
Example
In a press feed, a roller is required to rotate at a speed that is equal to one
quarter of the measured rate from an encoder installed on the incoming con-
veyor. The roller is wired to the master axis 0. The reference encoder is con-
nected to axis 1.
BASE(0)
SERVO=ON
CONNECT(0.25,1)