ABB ACS280 Firmware Manual page 144

144 Parameters
No. Name/Value
21.26 Torque boost current
15.0... 300.0%
21.27 Torque boost time
0.0... 60.0s
21.30 Speed compensated
stop mode
Off
Speed comp FWD
Speed comp REV
Speed comp bipolar
21.31 Speed comp stop delay
0.00...1000.00 s
Description
Defines the maximum supplied current to motor
during 'Torque boost' –starting mode. Parameter
value is in percent of the motor nominal current.
Nominal value of the parameter is 100.0%. 'Torque
boost' –starting mode can be used only when motor
control mode is 'Scalar'. Torque boost is only applied
at start, ending when output frequency exceeds 40%
of nominal frequency or when output frequency is
equal to reference.
Defines the minimum and maximum torque boost
time.
If torque boost time is less than 40% of frequency
acceleration time (see parameters
torque boost time is set at 40% of the frequency
acceleration time.
Nominal motor time.
Selects the method used to stop the drive. See also
Speed compensated stop
section
Speed compensated stop is active only if
• the operation mode is not torque, and
21.03 Stop mode
• parameter
20.11 Run enable stop mode
• parameter
case Run enable is missing).
Stop according parameter
compensated stop.
If the direction of rotation is forward, speed
compensation is used for constant distance braking.
Speed difference (between used speed and maximum
speed) is compensated by running the drive with
current speed before the motor is stopped along a
ramp.
If the direction of rotation is reverse, the drive is
stopped along a ramp.
If the direction of rotation is reverse, speed
compensation is used for constant distance braking.
Speed difference (between used speed and maximum
speed) is compensated by running the drive with
current speed before the motor is stopped along a
ramp.
If the direction of rotation is forward, the drive is
stopped along a ramp.
Regardless of the direction of rotation, speed
compensation is used for constant distance braking.
Speed difference (between used speed and maximum
speed) is compensated by running the drive with
current speed before the motor is stopped along a
ramp.
This delay adds distance to the total distance
traveled during a stop from maximum speed. It is
used to adjust the distance to match requirements so
that the distance traveled is not solely determined by
the deceleration rate.
Speed delay.
28.72 28.74
and
54
on page .
Ramp
is , or
Ramp
is
21.03 Stop mode
, no speed
Default
FbEq 16
100.0%
0.01 = 1%
20.0 s
),
1=1s
Off
(in
0
1
2
3
0.00 s
1 = 1 s