Rockwell Automation 21G PowerFlex 750-Series AC Drives Programming Manual - Manual (Page 127)

Rockwell Automation Publication 750-PM001J-EN-P - October 2014 127
Drive Port 0 Parameters Chapter 3
TO
RQUE C
O
N
TROL
To
rque Ref
erence
685 Selected Trq Ref
Selected Torque Reference
Displays the torque value of the selected torque reference (dynamic selection according
to P313 [Actv SpTqPs Mode]). This value will be summed with P686 [Torque Step]. The
result is then applied to the input of the notch filter located in the Vector torque
reference section.
Only active in Flux Vector (FV) motor control modes (P35). Units:
Default:
Min/Max: %
0.00
–/+800.00 RO Real
686 Torque Step
Torque Step
Defines the amount of torque reference step change to simulate a load disturbance,
used to test the response. This value is added to the main torque reference P685
[Selected Trq Ref], and then applied to the input of the notch filter located in the Vector
control torque reference section.
Only active in Flux Vector (FV) motor control modes (P35). Units:
Default:
Min/Max: %
0.00
–/+800.00 RW Real
687 Notch Fltr Freq
Notch Filter Frequency
The center frequency for the Notch filter located in the Vector control torque reference
section. To disable, set to zero (0).
Only active in Flux Vector (FV) motor control modes (P35). Units:
Default:
Min/Max: Hz
0.00
0.00 / 500.00 RW Real
688 Notch Fltr Atten
Notch Filter Attenuation
Sets the attenuation of the notch filter located in the Vector control torque reference
section. Attenuation is the ratio of the notch filter input signal to its output at the P687
[Notch Fltr Freq]. An attenuation of 30 means that the notch output is 1/30th of the
input at the specified frequency.
Only active in Flux Vector (FV) motor control modes (P35). Default:
Min/Max: 50.000
0.000 / 10000.000 RW Real
689 Filtered Trq Ref
Filtered Torque Reference
Displays the output of the notch filter defined by P687 and P688. If P704 [InAdp LdObs
Mode] indicates that either the Inertia Adaption or Load Estimate functions are active,
then the filtered torque reference will also be modified by these functions.
Only active in Flux Vector (FV) motor control modes (P35). Units:
Default:
Min/Max: %
0.00
–/+800.00 RO Real
690 Limited Trq Ref
Limited Torque Reference
Displays the torque reference value after filtering (P689), power limits, torque limits,
and current limits have been applied. P945 [At Limit Status] indicates what limiting
conditions are active.
Motor power limits are set by P426 [Regen Power Lmt] and P427 [Motor Power Lmt].
Motor torque limits are set by P670 [Pos Torque Limit] and P671 [Neg Torque Limit].
Motor current limit is set by P422 [Current Limit 1] or P423 [Current Limit 2].
Only active in Flux Vector (FV) motor control modes (P35). Units:
Default:
Min/Max: %
0.00
–/+800.00 RO Real
Fi
le
Grou
p
No. Display Name
Full Name
Description Values
Re
ad
-W
ri
te
Da
ta
T
ype
Freq (Hz)
Attenuation