Program features
69
Acceleration and deceleration ramps
Two user-selectable acceleration and deceleration ramps are available. It is possible
to adjust the acceleration/deceleration times and the ramp shape. Switching
between the two ramps can be controlled via a digital input.
The available ramp shape alternatives are Linear
and S-curve.
Linear
: Suitable for drives requiring steady or slow
acceleration/deceleration.
S-curve
: Ideal for conveyors carrying fragile loads,
or other applications where a smooth transition is
required when changing the speed.
The default setting for Par.
ACCEL/DECEL acceleration/deceleration selection
is ACC/DEC DIR for crane control. In this selection, acceleration time 1 and
deceleration time 1 is used when the motor is running in the forward direction, while
acceleration time 2 and deceleration time 2 is used when the motor is running in the
reverse direction. The following figure shows how the acceleration and deceleration
times are used according to the direction of the motor.
Settings
Parameter group
Linear
t
(s)
Motor
2
speed
S-curve
Max speed
Motor running
rev direction
in
t
(s)
0
a1
d1
a2
d2
a1 = Acceleration time1
Par.
d1 = Deceleration time1
Par.
a2 = Acceleration time2
Par.
d2 = Deceleration time2
Par.
Min speed
Mo
to
r spe
ed
Motor running
in fwd direction
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 ...