Operation & Software Manual
140
Direct Drives & Systems
Chapter C: System functions
ETEL Doc. - Operation & Software Manual # DSC2P 903 / Ver. F / 3/6/05
With parameter K8, the speed feedback (or pseudo-derivative gain) to the state regulator (parameter K2) will
be filtered. Parameter K8 is a speed filter made up of 2 low-pass 1st order filters.
Parameter K9 is the filter on the position regulator's output (force reference), a low-pass 1st order filter, with a
-20dB/decade slope.
Parameter K82 is the filter on the current regulator's output (current in the motor).
Remark:
Parameter K82 does not exist on the DSCDL.
There are also two advanced filters (second order filter) on the position regulator's output (force reference). The
default values below make the advanced filters inactive. To make it active (for specific applications), please
refer to the ETEL technical support.
The parameters of the first advanced filter are:
The parameters of the second advanced filter are:
K
Name
Comment
K8
Speed filter
Speed feedback filter of the position loop:
K9
Force
reference output
filter
Force reference filter (1st order) of the position regulator output:
K82
Current filter
Current output filter (1st order) of the current regulator:
K
Name
Comment
K104
Force reference output filter
Parameter of the first digital filter
K105
Force reference output filter
Parameter of the first digital filter
K106
Force reference output filter
Parameter of the first digital filter
K107
Force reference output filter
Parameter of the first digital filter
K108
Force reference output filter
Parameter of the first digital filter
K
Name
Comment
K114
Force reference output filter
Parameter of the second digital filter
K115
Force reference output filter
Parameter of the second digital filter
K116
Force reference output filter
Parameter of the second digital filter
K117
Force reference output filter
Parameter of the second digital filter
K118
Force reference output filter
Parameter of the second digital filter
fc
10
2 1
–
(
)
⋅
2
π
41.67
6
–
×
10
10
K
8
+
(
)
K
8
⋅
⋅
⋅
-----------------------------------------------------------------------------------------
=
For DSC2P and DSC2V
fc
10
2 1
–
(
)
⋅
2
π
55.56
6
–
×
10
10
K
8
+
(
)
K
8
⋅
⋅
⋅
-----------------------------------------------------------------------------------------
=
For DSCDP, DSCDL and DSCDM
fc
10
2
π
41.67
6
–
×
10
10
K
9
+
(
)
K
9
⋅
⋅
⋅
-----------------------------------------------------------------------------------------
=
For DSC2P and DSC2V
fc
10
2
π
55.56
6
–
×
10
10
K
9
+
(
)
K
9
⋅
⋅
⋅
-----------------------------------------------------------------------------------------
=
For DSCDP, DSCDL and DSCDM
fc
10
2
π
41.67
6
–
×
10
10
K
82
+
(
)
K
82
⋅
⋅
⋅
-----------------------------------------------------------------------------------------------
=
For DSC2P and DSC2V
fc
10
2
π
55.56
6
–
×
10
10
K
82
+
(
)
K
82
⋅
⋅
⋅
-----------------------------------------------------------------------------------------------
=
For DSCDP and DSCDM
Содержание DSC Series
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