Program features
71
Speed controller tuning
During the motor identification, the speed controller is automatically tuned. It is,
however, possible to manually adjust the controller gain, integration time and
derivation time, or let the drive perform a separate speed controller Autotune Run. In
Autotune Run, the speed controller is tuned based on the load and inertia of the
motor and the machine. The following figure shows speed responses at a speed
reference step (typically, 1 to 20%).
The following figure is a simplified block diagram of the speed controller. The
controller output is the reference for the torque controller.
Settings
Parameter group
and
Diagnostics
Actual signal
A: Undercompensated
B: Normally tuned (autotuning)
C: Normally tuned (manually). Better dynamic performance than with B
D: Overcompensated speed controller
%
t
n
C
B
D
n
N
A
Derivative
Proportional,
integral
Derivative
acceleration
compensation
Torque
reference
Speed
reference
Calculated actual speed
Error
value
-
+
+
+
+
Содержание ACS 800 Series
Страница 1: ...ACS800 Firmware Manual Crane Control Program N697 ...
Страница 4: ......
Страница 26: ...Start up and control through the I O interface 26 ...
Страница 36: ...Quick start up guide 36 ...
Страница 52: ...Control panel 52 ...
Страница 105: ...Program features 105 Figure Control diagram for Shaft synchronisation executed in 20 ms ...
Страница 126: ...Program features 126 The figures below show speed limits according to different load conditions ...
Страница 128: ...Program features 128 ...
Страница 150: ...Application macros control location EXT1 EXT2 150 ...
Страница 228: ...Actual signals and parameters 228 ...
Страница 299: ...Adaptive Programming examples for crane control 299 ...
Страница 305: ...Adaptive Programming examples for crane control 305 ...
Страница 312: ...Adaptive Programming examples for crane control 312 The following figures show the previous example enlarged ...
Страница 314: ...Adaptive Programming examples for crane control 314 The following figures show the previous example enlarged ...
Страница 318: ...Analogue Extension Module 318 ...
Страница 332: ...Additional data actual signals and parameters 332 ...
Страница 333: ...DriveWindow 333 DriveWindow DriveWindow connected to the ACS800 RMIO RDCO board and channel CH3 ...
Страница 334: ...DriveWindow 334 ...
Страница 335: ...Control block diagrams 335 Control block diagrams ...
Страница 336: ...Control block diagrams 336 ...
Страница 337: ...Control block diagrams 337 ...
Страница 338: ...Control block diagrams 338 ...
Страница 340: ...www abb com drives www abb com drivespartners Contact us 3AFE68775230 Rev E EN 2012 09 25 ...