Speed Reference Ramp - ABB ACQ80-04 Firmware Manual

96 Parameters
No. Name/Value
21.24 Smooth start
current
10.00...100.0%
21.25 Smooth start speed
2.0...100.0%
23
23 Speed reference
ramp
23.01 Speed ref ramp
input
-30000.00...
30000.00 rpm
23.02 Speed ref ramp
output
-30000.00...
30000.00 rpm
23.12 Acceleration time 1
0.000...1800.000 s
Description
Current used in the current vector rotation at low speeds.
Increase the smooth start current if the application requires
motor shaft swinging needs to be minimized. Note that
accurate torque control is not possible in the current vector
rotation mode.
Can be used for permanent magnet synchronous motors
only.
Value in percent of the nominal motor current.
Output frequency up to which the current vector rotation is
used. See parameter 21.19 Scalar start
Can be used for permanent magnet synchronous motors
only.
Value as a percentage of the nominal motor frequency.
Speed reference ramp settings (programming of the
acceleration and deceleration rates for the drive).
Shows used speed reference (in rpm) before it enters the
ramping and shaping functions.
This parameter is read-only.
Speed reference before ramping and shaping.
Shows ramped and shaped speed reference in rpm.
This parameter is read-only.
Speed reference after ramping and shaping.
Defines acceleration time 1 as the time required for the speed
to change from zero to the speed defined by parameter
Speed scaling (not to parameter
If the speed reference increases faster than the set
acceleration rate, the motor speed will follow the acceleration
rate.
If the speed reference increases slower than the set
acceleration rate, the motor speed will follow the reference.
If the acceleration time is set too short, the drive will
automatically prolong the acceleration in order not to exceed
the drive torque limits.
Note: Applicable only when
disabled. If parameter MPPT reference is enabled, then the
parameter should be set to it's default value.
Acceleration time 1.
mode.
30.12 Maximum speed).
79.40 MPPT reference is
Def/FbEq16
50.0%
1 = 1%
10.0%
1 = 1 %
0.00
1 = 1
0.00
1 = 1
20.000
46.01
10 = 1