94
Gemini GV6K/GT6K Command Reference
10
0
10
1
10
2
10
3
10
4
30
25
20
15
10
5
0
5
10
Frequency, Hz
Magnitude, dB
DNOTAD.3
DNOTAD.6
DNOTAD.9
10
0
10
1
10
2
10
3
10
4
-80
-60
-40
-20
0
20
40
60
80
Frequency, Hz
Phase shift, degrees
DNOTAD.6
DNOTAD.9
DNOTAD.3
These filters operate in all
DMODE
settings, except Autorun (
DMODE13
) and Torque/Force Tuning mode
(
DMODE15
).
Working with servo gains
.
•
Servo tuning process: refer to the
Hardware Installation Guide
.
•
Check the values of all active gains (
DNOTAD
is one of many servo gains): use
TGAIN
.
•
Creating and invoking gain sets: see
SGSET
,
SGENB
,
TGAIN
,
TSGSET
.
DNOTAF
Notch Filter A Frequency
Type
Tuning
Syntax
<a_><!>DNOTAF<i>
Units
i = Hz
Range
0 (disable), or 60-1000
Default
0 (filter is disabled)
Response
DNOTAF:
*DNOTAF200
See Also
DNOTAD, DNOTAQ, DNOTBD, DNOTBF, DNOTBQ, DNOTLD, DNOTLG, TASX,
TCS, TGAIN, TSGSET
Product Rev
GT6K n/a
GV6K 6.0
(applicable only to
servo axes)
The
DNOTAF
command sets the center frequency for the commanded torque/force notch filter A. Setting
this to 0 disables the filter.
If setting a value results in an internal calculation error, the last valid value is
used,
TASX
bit #28 is set, and a value of 551 is written to the
TCS
register.
There are two cascaded notch filters labeled “A” and “B”. Both filters operate in exactly the same way. The
graphs below illustrate the transfer function (magnitude and phase) of the input commanded torque/force
vs. the output commanded torque/force. In this example, the notch frequency is set to 150 Hz (
DNOTAF150
)
and the “Q” is set to 1 (
DNOTAQ1
).
Filter Response, dB
Frequency, Hz
1
10
100
10
3
10
4
40
30
20
10
0
10
DNOTAF150
Phase shift, de
grees
100
80
60
40
20
0
20
40
60
80
100
Frequency, Hz
1
10
100
10
3
10
4
DNOTAF150
These filters operate in all
DMODE
settings, except Autorun (
DMODE13
) and Torque/Force Tuning mode
(
DMODE15
).
Working with servo gains
.
•
Servo tuning process: refer to the
Hardware Installation Guide
.
•
Check the values of all active gains (
DNOTAF
is one of many servo gains): use
TGAIN
.
•
Creating and invoking gain sets: see
SGSET
,
SGENB
,
TGAIN
,
TSGSET
.
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