227
Signal and parameter list
3ADW000379R0501 DCS550 Manual e e
Signal / Parameter name
m
in.
ma
x.
def
.
uni
t
Group 43: Current control
43.01 Unused
43.02 CurSel (current reference selector)
CurSel (43.02) selector:
0 = CurRef311
CurRef (3.11) calculated from torque reference as armature current reference, default
1 = CurRefExt
CurRefExt (43.03) as armature current reference
2 = AI1
analog input AI1 as armature current reference
3 = AI2
analog input AI2 as armature current reference
4 = AI3
analog input AI3 as armature current reference
5 = AI4
analog input AI4 as armature current reference
6 = AI5
analog input AI5 as armature current reference
7 = AI6
analog input AI6 as armature current reference
8 = CurZero
forces single firing pulses and sets CurRefUsed (3.12) to zero
Int. Scaling: 1 == 1
Type: C
Volatile:
N
C
ur
R
ef
311
AI
6
C
ur
R
ef
311
-
43.03 CurRefExt (external current reference)
External current reference in percent of M1NomCur (99.03).
Note:
CurRefExt (43.03) is only valid, if CurSel (43.02) = CurRefExt.
Int. Scaling: 100 == 1 % Type: SI
Volatile:
Y
-325
325
0
43.04 CurRefSlope (current reference slope)
CurRefSlope (43.04) in percent of M1NomCur (99.03) per 1 ms. The di/dt limitation is located at the input of
the current controller.
Int. Scaling: 100 == 1 %/ms
Type: I
Volatile:
N
0
.2
40
10
%
/m
s
43.05 Unused
43.06 M1KpArmCur (p-part armature current controller)
Proportional gain of the current controller.
Example:
The controller generates 15 % of motor nominal current [M1NomCur (99.03)] with M1KpArmCur (43.06) = 3, if
the current error is 5 % of M1NomCur (99.03).
Int. Scaling: 100 == 1
Type: I
Volatile:
N
0
100
0
.1
-
43.07 M1TiArmCur (i-part armature current controller)
Integral time of the current controller. M1TiArmCur (43.07) defines the time within the integral part of the
controller achieves the same value as the proportional part.
Example:
The controller generates 15 % of motor nominal current [M1NomCur (99.03)] with M1KpArmCur (43.06) = 3, if
the current error is 5 % of M1NomCur (99.03). On that condition and with M1TiArmCur (43.07) = 50 ms
follows:
−
the controller generates 30 % of motor nominal current, if the current error is constant, after 50 ms are
elapsed (15 % from proportional part and 15 % from integral part).
Setting M1TiArmCur (43.07) to 0 ms disables the integral part of the current controller and resets its
integrator.
Int. Scaling: 1 == 1 ms
Type: I
Volatile:
N
0
10000
50
ms
43.08 M1DiscontCurLim (discontinuous current limit)
Threshold continuous / discontinuous current in percent of M1NomCur (99.03). The actual continuous /
discontinuous current state can be read from CurCtrlStat1 (6.03) bit 12.
Int. Scaling: 100 == 1 % Type: I
Volatile:
N
0
325
100
%
43.09 M1ArmL (armature inductance)
Inductance of the armature circuit in mH. Used for the EMF compensation:
dt
dI
L
I
R
U
EMF
A
A
A
A
A
*
*
−
−
=
Attention:
Do not change the default values of M1ArmL (43.09) and M1ArmR (43.10)! Changing them will falsify the
results of the autotuning.
Int. Scaling: 100 == 1 mH Type: I
Volatile:
N
0
640
0
mH
Содержание DCS550 Series
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