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3-20
Programming and Parameters
PowerFlex 700S Phase II AC Drive User Manual -
Publication 20D-UM006G-EN-P – July 2008
85
Servo Lock Gain
Sets the gain of an additional integrator in the speed regulator. The effect of Servo Lock is to
increase stiffness of the speed response to a load disturbance. It behaves like a position
regulator with velocity feed forward, but without the pulse accuracy of a true position regulator.
The units of Servo Lock are rad/sec. Gain should normally be set to less than 1/3 speed
regulator bandwidth, or for the desired response. Set to zero to disable Servo Lock.
Units:
Default:
Min/Max:
/Sec
0.0000
0.0000/300.0000
✓
RW Real
86
Spd Reg Droop
Specifies the amount of base speed that the speed reference is reduced when at full load
torque. Use the droop function to cause the motor speed to decrease with an increase in load.
The units are per unit speed / per unit torque.
Units:
Default:
Min/Max:
P.U.
0.0000
0.0000/0.2500
✓
RW Real
87
SReg Trq Preset
When the drive is not enabled, this parameter presets integrator output
[SpdReg
Integ Out] to a specified torque level. This ensures that the torque command will be at the
preset value when the drive is enabled and run.
[Control Options], bit 18
[SpdRegPreset] = 0, enables this preset.
Units:
Default:
Min/Max:
P.U.
0.0000
-/+8.0000 pu
✓
RW 16-bit
Integer
89
Spd Err Filt BW
Sets the bandwidth of a 2nd order Butterworth low pass filter, which reduces quantization
noise. The units are rad/sec. A value of 0 will disable the filter. The value should be greater
than 5 times the value of
[Spd Reg BW].
Note: The default value for this parameter was changed from 200.0000 to 700.0000 for
firmware version 2.03.
Units:
Default:
Min/Max:
R/S
700.0000
0.0000/2000.0000
✓
RW Real
90
Spd Reg BW
Sets the bandwidth of the speed regulator in rad/sec. Bandwidth is also referred to as the
crossover frequency. Small signal time response is approximately 1/BW and is the time to
reach 63% of set point. A change to this parameter will cause an automatic update of
[Spd Reg P Gain] and
[Spd Reg I Gain]. To disable the automatic gain calculation, set
this parameter to a value of zero.
Units:
Default:
Min/Max:
R/S
10.0000
0.0000/500.0000
✓
RW Real
91
Spd Reg Damping
Sets the damping factor of the drive's characteristic equation and factors in the calculation of
the integral gain. A damping factor of 1.0 is considered critical damp. Lowering the damping
will produce faster load disturbance rejection, but may cause a more oscillatory response.
When
[Spd Reg BW] is set to zero, damping factor has no effect.
Default:
Min/Max:
1.0000
0.5000/3.0000
✓
RW Real
92
SpdReg P Gain Mx
Places a limit on the maximum value of proportional gain in
[Spd Reg P Gain] and
[Srlss Spd Reg Kp]. When gains are automatically calculated, this parameter is
necessary to limit the amplification of noise with increased inertia.
Note: The Max. value was increased from 600.0000 for firmware version 3.01.
Default:
Min/Max:
100.0000
0.0000/3000.0000
✓
RW Real
93
SRegFB Filt Gain
Sets the lead term for the speed feedback filter. Values greater than 1 will result in a lead
function and values less than 1 will result in a lag function. A value of 1 will disable the filter.
Default:
Min/Max:
1.0000
-5.0000/20.0000
✓
RW Real
94
SReg FB Filt BW
Sets the frequency for the Speed Feedback filter.
Units:
Default:
Min/Max:
R/S
35.0000
0.0000/3760.0000
✓
RW Real
95
SRegOut FiltGain
Sets the lead term for the Speed Regulator output filter. Values greater than 1 will result in a
lead function and values less than 1 will result in a lag function. A value of 1 will disable the
filter.
Note: The default value for this parameter was changed from 0.7000 to 1.0000 for firmware
version 2.03.
Default:
Min/Max:
1.0000
-/+5.0000
✓
RW Real
96
SReg Out Filt BW
Sets the frequency for the Speed Regulator output filter.
Units:
Default:
Min/Max:
R/S
30.0000
0.0000/3760.0000
✓
RW Real
97
Act Spd Reg BW
Displays the actual speed regulator bandwidth or crossover frequency. The value represents
the bandwidth in
[Spd Reg BW] after the maximum bandwidth limits have been
applied.
Units:
Default:
Min/Max:
R/S
10.0000
0.0000/500.0000
RO Real
98
Slip RPM @ FLA
Sets the amount of compensation to drive output at motor full load current (FLA).
Note: This parameter was added for firmware version 2.03.
Units:
Default:
Min/Max:
RPM
Based on [Motor NP RPM]
0.0/1200.0 RPM
✓
RW 16-bit
Integer
99
Slip Comp Gain
Sets the response time of slip compensation.
Note: This parameter was added for firmware version 2.03.
Units:
Default:
Min/Max:
R/S
40.0
1.0/100.0
✓
RW 16-bit
Integer
100
Speed Error
The error (difference) between the motor speed reference (+) and the filtered motor speed
feedback (-).
Units:
Default:
Min/Max:
Scale:
RPM
0.0000
-/+14112.0000
[Motor NP RPM] = 1.0 pu
RO Real
101
SpdReg Integ Out
The output value of the Speed Regulator Integral channel.
Units:
Default:
Min/Max:
Scale:
P.U.
0.0000
-/+8.0000 pu
1.0 PU Torque
RO Real
No.
Name
Description
Values
Linkab
le
R
ead-Wr
ite
Da
ta
T
ype
Содержание PowerFlex 700S
Страница 1: ...USER MANUAL Firmware Versions 1 xxx 4 002 PowerFlex 700S High Performance AC Drive Phase II Control ...
Страница 58: ...2 8 Start Up PowerFlex 700S Phase II AC Drive User Manual Publication 20D UM006G EN P July 2008 Notes ...
Страница 147: ...Programming and Parameters 3 89 PowerFlex 700S Phase II AC Drive User Manual Publication 20D UM006G EN P July 2008 ...
Страница 278: ...D 8 HIM Overview PowerFlex 700S Phase II AC Drive User Manual Publication 20D UM006G EN P July 2008 Notes ...
Страница 316: ...Index 6 PowerFlex 700S Phase II AC Drive User Manual Publication 20D UM006G EN P July 2008 ...
Страница 317: ......