Rockwell Automation 23P PowerFlex Digital DC Drive User Manual
Page 140
140
Rockwell Automation Publication 20P-UM001K-EN-P - July 2014
Chapter 3
Programming and Parameters
MOT
O
R C
O
NTROL
Spe
ed F
eedback
914
[Spd FB Filt Gain]
First order lead/lag filter gain on the speed feedback signal.
Note: This parameter was added for firmware version 3.001.
Default:
Min/Max:
1.000
0.000 / 2.000
Real
915
915
[Spd FB Filt BW]
First order lead/lag filter bandwidth on the speed feedback signal.
Note: This parameter was added for firmware version 3.001.
Default:
Min/Max:
Units:
0
0 / 2000
ms
16-bit
Int
914
923
[Act Spd Filter]
First order low pass filter time constant for Par 924 [Actual Speed].
Default:
Min/Max:
Units:
0.100
0.001 / 1.000
s
Real
924
1021
[Encoder Out Sel]
Defines the speed reference to which the encoder signal can be input. This
parameter is typically set to 0 “Off” and the encoder is used for speed
feedback only. When set to other than 0 “Off”, the choice of the speed
reference destination must be made according to the configuration of the
speed regulator (for example “Speed Ref A” cannot be used with an active
ramp).
Default:
Options:
0 =
0 =
1 =
2 =
3 =
4 =
“Off”
“Off”
“Trim Speed”
“Trim Ramp”
“Speed Ref A”
“Speed Ref B”
16-bit
Int
1022
[Encoder Counts]
Displays an accumulated pulse count (32-bit integer) from the encoder. Each
edge is counted, so a 1024 PPR device produces 4096 counts per revolution.
Movement in either the forward or reverse direction results in an increase in
the counter value.
Note: This parameter was added for firmware version 3.001.
Default:
Min/Max:
Read Only
–/+ 2
32
32-bit
Int
Au
tot
u
ne
93
[Spd Reg Kp Base]
The proportional gain (K
P0
) of the speed regulator (base value). Note: This
parameter was moved from the Speed Command file and Speed Regulator
group for firmware version 6.001.
Default:
Min/Max:
Units:
0.30
0.001 / Based on drive current rating
A / rpm
RO
87,
99
94
[Spd Reg Ki Base]
The integral gain (K
I0
) of the speed regulator (base value). Note: This
parameter was moved from the Speed Command file and Speed Regulator
group for firmware version 6.001.
Default:
Min/Max:
Units:
0.30
0.001 / Based on drive current rating
A/ rpm x ms
RO
88,
100
452
[CurrReg Autotune]
Setting this parameter to 1 “On” and pressing “Start” on the HIM keypad
initiates the current regulator auto tuning procedure. When the auto tuning
procedure is complete, this parameter automatically resets to 0 “Off”. The
resulting armature resistance and inductance values are set in parameters
453 [Arm Resistance] and 454 [Arm Inductance], respectively.
Default:
Options:
0 =
0 =
1 =
“Off”
“Off”
“On”
16-bit
Int
453
[Arm Resistance]
Motor armature resistance. This parameter can be manually changed to a
value other than the value obtained when the current regulator auto tuning
is completed.
Default:
Min/Max:
Units:
0.50
Based on drive current rating
Ohm
Real
452
454
[Arm Inductance]
Motor armature inductance. This parameter can be manually changed to a
value other than the value obtained when the current regulator auto tuning
is completed.
Default:
Min/Max:
Units:
4.00
Based on drive current rating
mH
Real
452
587
[I Reg Error]
Current Regulator tuning status parameter that is used as part of the manual
tuning process. See Fine Tuning the Regulators on page
for details.
Default:
Min/Max:
Units:
Read Only
–/+80
V
16-bit
Int
452
1012
[Inertia C Filter]
First order low–pass filter used to reduce noise caused by the speed
differentiation process in the Inertia/Loss compensation block.
Default:
Min/Max:
Units:
0
0 / 1000
ms
16-bit
Int
Fil
e
Gr
oup
No
.
Parameter Name & Description
See
page 114
for symbol descriptions
Values
Da
ta
T
yp
e
Rela
ted
A
A
A
A
A
A
A
ATTENTION: Do not attempt to perform current regulator tuning with a PowerFlex DC drive and permanent magnet
motor, drive and/or motor damage may occur.
A
A