ABB ACS880 - Page 528

Def / Type
FbEq 16b / 32b
DescriptionName / Range /
Selection
No.
30.0 s / real32Defines the time for the pump-motor to decelerate
from the speed set in parameter 46.2 Frequency scaling
down to 0.
Note: If parameter 75.23 Ramp switch speed is set to
greater than 0, then this parameter ramp time setting
is used while speed reference is in lower speed region.
Deceleration time 275.25
1 = 1 s / 10 = 1 sDeceleration time 2 in seconds.0.0 ... 1800.0 s
ESP CW bit 4 / unit32Defines the source for Acceleration assistance enable
signal.
For further information, see section Acceleration
assistance .
Acceleration
assistance enable
75.40
0Acceleration assistance is inactive.Not selected
1Acceleration assistance is active.Selected
2Digital input DI1 (10.2 DI delayed status, bit 0).DI1
3Digital input DI2 (10.2 DI delayed status, bit 1).DI2
4Digital input DI3 (10.2 DI delayed status, bit 2).DI3
5Digital input DI4 (10.2 DI delayed status, bit 3).DI4
6Digital input DI5 (10.2 DI delayed status, bit 4).DI5
7Digital input DI6 (10.2 DI delayed status, bit 5).DI6
10Digital input/output DIO1 (11.2 DIO delayed status, bit
0).
DIO1
11Digital input/output DIO2 (11.2 DIO delayed status, bit
1).
DIO2
12Parameter 74.1 ESP control word (page 519), bit 4 status
controls enable/disable status of the function.
ESP CW bit 4
See Terms and abbreviations (page 169).Other [bit]
20.0% / real32Defines the speed limit at which acceleration assistance
is automatically disabled.
The assistance current boost is produced only once. If
the speed is below the value set in the parameter, then
no repeated current boost is applied.
Acceleration
assistance speed
limit
75.42
10 = 1% / 10 = 1%Acceleration assistance speed limit.0.0 ... 100.0%
100.0% / real32Defines motor current reference used when the
acceleration assistance routine is active. The base value
to calculate the acceleration assistance current is
parameter 99.6 Motor nominal current.
Acceleration
assistance current
75.46
10 = 1% / 10 = 1%Acceleration assistance current.0.0 ... 300.0%
ESP CW bit 5 / unit32Defines the source for Kick-start enable signal.
Note: If used with step-up transformer, Kick-start
function provides pre-magnetization for the motor to
increase starting torque. Else, it can be used to improve
the motor performance during start.
For further information, see section Kick-start .
Kick start enable75.50
528 Parameters