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DIGN
Current Loop Gain
Type
Tuning
Syntax
<a_><!>DIGNc<r>
Units
c = gain identifier letter (required);
r = gain value
Range
c = A, B, C, or D;
DIGNA, DIGNB, DIGNC : r = 0.000 to 15.000 : ±0.001
DIGND
Default
r = 0.000
(DIGNc of 0 results in motor config. warning)
Response
DIGNA:
*DIGNA2.306
See Also
DMTR, TASX, TCS
AUTO-SETUP:
This command is automatically set according to the Parker motor selected with the
configuration utility in Motion Planner (see page 6). If you did not use the configuration utility or are not using a
Parker Motor, this command is set to zero and you will have to manually set this parameter. (Refer to DMTR for
a list of auto-configured commands.) If the drive is powered up when this command is set to zero (for instance,
if RFS is executed), the drive reports a motor configuration warning with TASX bit 28, and writes a value to the
TCS register (46 for DIGNA, 47 for DIGNB, 48 for DIGNC, or 49 for DIGND).
Use the
command to set values for the gain terms in the stepper current loop, which optimizes drive
DIGN
performance for a specific motor.
Setting DIGN values for Non-Parker Motors:
• The drive must be disabled (DRIVE0) before making any changes to the DIGN values.
• When making changes to DIGNA, DIGNB and DIGNC values, the ratio between the
values must remain constant. That is, multiply or divide all three gain values by the same
amount.
• Increasing the DIGN values can improve system performance; however, setting an
excessive DIGN value will cause the motor to "sing" (emit a high-pitched squeal or
screech) when it is at rest and to heat unnecessarily
Calculating initial values * :
* If these initial values cause the motor to "sing," immediately disable the drive (
and lower
If motor performance is not as high as expected, increase
(keeping the initial ratio) until system performance is acceptable.
For additional assistance in determining
DJOG
Enable RP240 Jog Mode
Type
Display (RP240) Interface
Syntax
<a><!>DJOG<b>
Units
b = 0 or 1
Range
0 = disable, 1 = enable
Default
0
Response
DJOG:
*DJOG0
See Also
JOG, JOGA, JOGAA, JOGAD, JOGADA, JOGVH, JOGVL
The
command allows you to branch into the RP240 front panel jog mode from within your user-
DJOG
defined program, adjust the position of the axis, and then return to program execution.
: r = 0.000 to 1.000 : ±0.001
NOTES
Inductance (in mH)
DIGNA =
2
DIGNB = DIGNA * 0.0896
DIGNC = DIGNA * 0.3578
DIGND = 0.98 (this value will not be changed again)
and
by the same factor; repeat as necessary.
DIGNA, DIGNB
DIGNC
values for your motor, please consult the factory.
DIGNc
www.comoso.com
Product
GT6K
GV6K
(applicable only to
stepper axes)
,
and
by the same factor
DIGNA
DIGNB
DIGNC
Product
GT6K
GV6K
Command Descriptions
Rev
6.0
n/a
)
DRIVE0
Rev
6.0
6.0
73
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