Reference Ramping - ABB ACS580 Firmware Manual

96 Program features
Settings
• Menu - Primary settings - Motor - Control mode
• Parameters 99.04 Motor control mode
(page 319).


Reference ramping

Acceleration and deceleration ramping times can be set individually for speed, torque
and frequency reference (Menu - Primary settings - Ramps).
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, also the shape of the ramp 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 control.
Settings
Parameters 23.28 Variable slope enable
(page 202).
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 102) is adjustable. The
same rate applies in both directions.
A deceleration ramp can be defined for emergency stop ("Off3" mode).
46.01 Speed scaling
Jogging (page 99).
(page 317) and 99.13 ID run requested
or 46.02 Frequency
(page 202) and 23.29 Variable slope rate
scaling. The user can
01.30 Nominal torque