Parker Automation Gemini GV6K Command Reference Manual page 139

Servo drive/controller
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FOLRD
Denominator of Follower-to-Master Ratio
Type
Following
Syntax
<a_><!>FOLRD<r>
Units
r = master distance in counts
Range
r = 1.00000 - 999,999,999 (scalable by SCLMAS)
Default
1
Response
FOLRD
*FOLRD1
See Also
COMEXC, FGADV, FOLEN, FOLK, FOLMAS, FOLRN, FOLRNF, SCLMAS
The
command establishes the denominator of a ratio between follower and master travel. (Ratios are
FOLRD
always specified as positive, similar to velocity.) For a preset move (
and for a continuous move (
MC1
will depend on commanded moves (
If no
parameter is specified, it is assumed to be 1.
FOLRD
If scaling is enabled (
SCALE1
refer to page
16
or to the
SCLMAS
Numeric variables (
) can be used with this command for master parameters (e.g.,
VAR
Each time
or
are given, the Gem6K drive divides the scaled numerator and denominator to
FOLRN
FOLRD
calculate the ratio, but round-off errors are eliminated by measuring both master and follower over a large
distance. After scaling, the maximum magnitude of the ratio is 127 follower steps for every master step.
ON-THE-FLY CHANGES: You can change Following ratio on the fly (while motion is in progress) in
two ways. One way is to send an immediate command (
(
). The other way is to enable the continuous command execution mode (
!GO
buffered command (
) followed by a buffered go command (
FOLRD
:
Example
(refer also to the FOLEN examples)
SCLD25000
; Set follower scaling factor to 25,000
SCLMAS4000
; Set master scaling factor to 4,000
SCALE1
; Enable scaling
FOLRN5
; Set ratio numerator to 5 (5 * 25,000 = 125,000)
FOLRD3
; Set ratio denominator to 3 (3 * 4,000 = 12,000)
; (Resulting ratio is 125 follower steps to every 12 master steps.)
FOLRN
Numerator of Follower-to-Master Ratio
Type
Following
Syntax
<a_><!>FOLRN<r>
Units
r = follower distance in steps
Range
r = 0.00000 – 999,999,999.99999 (scalable by SCLD)
Default
1
Response
FOLRN
*FOLRN1
See Also
FGADV,
FOLEN, FOLK, FOLMAS, FOLRNF, FOLRD, SCLD
The
command establishes the numerator of a ratio between follower and master travel. (Ratios are
FOLRN
always specified as positive, similar to velocity.) For a preset move (
and for a continuous move (
MC1
will depend on commanded moves (
If no
parameter is specified, it is assumed to be 1.
FOLRN
If scaling is enabled (
SCALE1
refer to page
16
or to the
SCLD
Numeric variables (
) can be used with this command for follower parameters (e.g.,
VAR
), it is the final ratio reached by the follower. The actual follower direction
or
) and master direction.
D+
D-
), the
value is scaled by the
FOLRD
command description.
!FOLRD
), it is the final ratio reached by the follower. The actual follower direction
or
) and master direction.
D+
D-
), the
value is scaled by the
FOLRN
command description.
www.comoso.com
Product
GT6K
GV6K
), it is the maximum allowed ratio,
MCØ
value. For more detail on scaling,
SCLMAS
FOLRD(VAR5)
) followed by an immediate go command
) and execute a
COMEXC1
).
GO
Product
GT6K
GV6K
), it is the maximum allowed ratio,
MCØ
value. For more detail on scaling,
SCLD
FOLRN(VAR2)
Command Descriptions
Rev
6.0
6.0
).
Rev
6.0
6.0
).
137

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