ABB DCS550 Series, Manual

Page: 212 / 316

212
Signal and parameter list
3ADW000379R0501 DCS550 Manual e e
Signal / Parameter name
m
in.
ma
x.
def
.
uni
t
−
TD = Derivation time [DerivTime (24.12)]
−
TF = Derivation filter time [DerivFiltTime (24.13)]
−
T
n
= nominal motor torque
−
(2.29) = actual used speed scaling [SpeedScaleAct (2.29)]
24.01 - 24.02 Unused
24.03 KpS (p-part speed controller)
Proportional gain of the speed controller can be released by means of Par2Select (24.29).
Example:
The controller generates 15 % of motor nominal torque with KpS (24.03) = 3, if the speed error (
∆
n) is 5 % of
SpeedScaleAct (2.29).
Int. Scaling: 100 == 1
Type: I Volatile: N
0 325 5 -
24.04 - 24.08 Unused
24.09 TiS (i-part speed controller)
Integral time of the speed controller can be released by means of Par2Select (24.29). TiS (24.09) 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 torque with KpS (24.03) = 3, if the speed error (
∆
n) is 5 % of
SpeedScaleAct (2.29). On that condition and with TiS (24.09) = 300 ms follows:
−
the controller generates 30 % of motor nominal torque, if the speed error (
∆
n) is constant, after 300 ms are
elapsed (15 % from proportional part and 15 % from integral part).
Setting TIS (24.09) to 0 ms disables the integral part of the speed controller and resets its integrator.
Int. Scaling: 1 == 1 ms
Type: I Volatile: N
0 64000 2500 ms
24.10 TiSInitValue (initial value for i-part speed controller)
Initial value of the speed controller integrator, in percent of MotNomTorque (4.23). The integrator is set as
soon as RdyRef [MainStatWord (8.01)] becomes valid.
Int. Scaling: 100 == 1 % Type: SI
Volatile: N
-325 325 0 %
24.11 BalRef (balance speed reference)
External value in percent of MotNomTorque (4.23). Both, i-part and output of the speed controller are forced to
BalRef (24.11) when AuxCtrlWord (7.02) bit 8 = 1.
Int. Scaling: 100 == 1 % Type: SI
Volatile: N
-325 325 0 %
24.12 DerivTime (d-part speed controller)
Speed controller derivation time. DerivTime (24.12) defines the time within the speed controller derives the
error value. The speed controller works as PI controller, if DerivTime (24.12) is set to zero.
Int. Scaling: 1 == 1 ms
Type: I Volatile: N
0 10000 0 ms
24.13 DerivFiltTime (filter time for d-part speed controller)
Derivation filter time.
Int. Scaling: 1 == 1 ms
Type: I Volatile: N
0 10000 8 ms
24.14 - 24.26 Unused
24.27 KpS2 (2
nd
p-part speed controller)
2
nd
proportional gain of the speed controller can be released by means of Par2Select (24.29).
Int. Scaling: 100 == 1 Type: I Volatile: N
0 325 5 -