Application Control; Reference Ramping - ABB ACS560 Firmware Manual

Application control



Reference ramping

Acceleration and deceleration ramping times can be set individually for speed, torque
and frequency reference (Main menu
With a speed or frequency reference, the ramps are defined as the time it takes for
the drive to accelerate or decelerate between zero speed or frequency and the value
defined by parameter
switch between two preset ramp sets using a binary source such as a digital input.
For speed reference, the shape of the ramp also can be controlled.
With a torque reference, the ramps are defined as the time it takes for the reference
to change between zero and nominal motor torque (parameter
scale).
Variable slope
Variable slope controls the slope of the speed ramp during a reference change. With
this feature a constantly variable ramp can be used.
Variable slope is only supported in remote external control.
Settings
Parameters 23.28 Variable slope
228).
Special acceleration/deceleration ramps
The acceleration/deceleration times for the jogging function can be defined
separately; see section
The change rate of the motor potentiometer function (page 76) is adjustable. The
same rate applies in both directions.
46.01 Speed scaling
(page 228) and
Jogging (page 73).
Motor control

or 46.02 Frequency
23.29 Variable slope rate
Program features 43
).
scaling. The user can
01.30 Nominal torque
(page