GE Industrial Solutions DV-300 DC Drive Users Manual - Manual (Page 173)

DV-300 Adjustable Speed Drives
——— FUNCTION DESCRIPTION ———
6
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Speed P Proportional gain K
P
* of the speed regulator expressed as a percentage of Speed P
base.
Speed I Integral gain K
I
* of the speed regulator expressed as a percentage of Speed I base.
Speed P bypass Proportional gain K
P
* of the speed regulator expressed as a percentage of Speed P
base, when a feedback via encoder or tachometer is changed into a armature feedback
(Enable fbk bypas = Enabled).
Speed I bypass Integral gain K
I
* of the speed regulator expressed as a percentage of Speed I base, when
a feedback via encoder or tachometer is changed into a armature feedback (Enable fbk
bypas = Enabled).
Fld reg P gain Proportional gain K
P
* of the field current regulator expressed as percentage of Flux P
base.
Fld reg I gain Integral gain K
I
* of the field current regulator expressed as a percentage of Flux I
Base.
Voltage P Proportional gain K
P
* of the field voltage regulator expressed as a percentage of Volt-
age P base.
Voltage I Integral gain K
I
* of the field voltage regulator expressed as a percentage of Voltage I
base.
Speed P base Proportional gain K
P0
of the speed regulator in A/rpm (base value)
Speed I base Integral gain K
I0
of the speed regulator in A/rpm·ms (base value)
Flux P base Proportional gain K
P0
of the field current regulator (base value)
Flux I Base Integral gain K
I0
of the field current regulator in (base value)
Voltage P base Proportional gain K
P0
of the field voltage regulator in A / Vs (base value)
Voltage I base Integral coefficient K
I0
of the field voltage regulator in A / V · ms (base value)
Speed P in use Display of the active proportional coefficient of the speed regulator as a percentage of
Speed P base
Speed I in use Display of the active derivative coefficient of the speed regulator as a percentage of
Speed I base
The maximum value for the regulator parameters is defined by the base values. The settings possible depend on
the size of the device.
The user can optimize the function of the regulator by changing the percentage values (values marked with *).
The resulting gains for the regulator are calculated as follows:
K
P
= K
P0
· K
P
* / 100 % K
I
= K
I0
· K
I
* / 100 %
Example of the speed regulator:
Speed P base = 12 (= K
P0
) Speed P = 70 % (= K
P
*)
Proportional gain K
P
= 12 · 70 % / 100 % = 8.4
The base values ... base are also the basis for setting the adaptive speed regulator.
When the adaptive speed regulator is enabled (Enable spd adap = Enabled), the Speed P and Speed I param-
eters have no effect. They still retain their value and are effective again when the speed regulator adaption is
disabled.
The Speed P in use and Speed I in use parameters indicate the current gains for the speed regulator. This also
applies when the speed regulator adaption is active.