Rockwell Automation 20P PowerFlex Digital DC Drive User Manual
Page 125
Rockwell Automation Publication 20P-UM001I-EN-P - February 2013
125
Programming and Parameters
Chapter 3
MO
TO
R C
O
NT
ROL
Fie
ld Co
nf
ig
97
[Fld Reg Kp Base]
The proportional gain (K
P0
) of the field current regulator (base value). Leave
set to the default value for permanent magnet motor applications.
Default:
Min/Max:
3276.70
0.10 / 32767.00
Real
91
98
[Fld Reg Ki Base]
Integral gain (K
I0
) of the field current regulator in (base value). Leave set to
the default value for permanent magnet motor applications.
Default:
Min/Max:
3276.70
0.10 / 32767.00
Real
92
456
[Fld Weaken Ratio]
The ratio of Motor Nameplate Base Speed to Par 45 [Max Ref Speed] when
Par 469 [Field Mode Sel] = 1 “Field Weaken”. This value is the percentage of
the maximum application speed when field weakening will begin: “Motor
Base Speed” / Par 45 [Max Ref Speed] x 100. If Par 469 [Field Mode Sel] = 0
“Base Speed”, this parameter must be = 100%. Leave set to the default value
for permanent magnet motor applications.
Default:
Min/Max:
Units:
100
0 / 100
%
16-bit
Int
921,
469
462
[Flux Divide]
Selects division by flux for Inertia Compensation or Torque Reference. Leave
set to the default value for permanent magnet motor applications.
Note: Added for firmware version 3.001.
Default:
Options:
0 =
0 =
1 =
“Torque Ref”
“Torque Ref”
“Inertia Comp”
16-bit
Int
463
[Flux Filter BW]
Adjustable low pass filter on the value of Par 500 [Flux Ref Pct]. The filtered
result is used by the Torque Reference divide by flux function. Leave set to the
default value for permanent magnet motor applications.
Note: Added for firmware version 3.001.
Default:
Min/Max:
Units:
50
0 / 2000
ms
16-bit
Int
467
[Max Fld Curr Pct]
Maximum allowable field current. The maximum value (100%) corresponds
to the value set in Par 280 [Nom Mtr Fld Amps]. The value of this field linearly
affects the field current, unless a flux curve is set in Pars 916, 917, and 918
[Fld Const xx Pct]. Leave set to the default value for permanent magnet
motor applications.
Note: This parameter can be assigned to an analog input or output.
Default:
Min/Max:
Units:
100
Par 468 [Min Fld Curr Pct] / 100
%
16-bit
Int
468
468
[Min Fld Curr Pct]
Minimum allowable field current. The value set in this parameter also
influences the threshold at which the “Fld Current Loss” (F6) fault occurs. The
threshold is half of the value of Par 468 [Min Fld Curr Pct]. The value of Par
351 [Field Current] equals the value of this parameter when Par 499 [Field
Economy En] = 1 “Enabled” and Field Economy becomes active. Leave set to
the default value for permanent magnet motor applications.
Default:
Min/Max:
Units:
30
0 / Par 467 [Max Fld Curr Pct]
%
16-bit
Int
467,
499
Fil
e
Gr
oup
No
.
Parameter Name & Description
See
page 110
for symbol descriptions
Values
Da
ta
T
yp
e
Rela
ted
A
A
A
A
ATTENTION: Failure to set this parameter to a value appropriate for the intended application could result in excessive
motor speed, equipment damage, and/or bodily injury.
ATTENTION: Failure to set this parameter to a value appropriate for the intended application could result in excessive
motor speed, equipment damage, and/or personal injury.