Motor Control - ABB ACS355 series User Manual

All parameters
No. Name/Value
2505 CRIT SPEED 2
HI
0.0...599.0 Hz /
0...30000 rpm
2506 CRIT SPEED 3
LO
0.0...599.0 Hz /
0...30000 rpm
2507 CRIT SPEED 3
HI
0.0...599.0 Hz /
0...30000 rpm
26 MOTOR
CONTROL
2601 FLUX OPT
ENABLE
OFF
ON
2602 FLUX
BRAKING
OFF
MODERATE
FULL
Description
See parameter 2503 CRIT SPEED 1
See parameter 2503.
See parameter 2502 CRIT SPEED 1
See parameter 2502.
See parameter 2503 CRIT SPEED 1
See parameter 2503.
Motor control variables
Activates/deactivates the flux optimization function. Flux
optimization reduces the total energy consumption and
motor noise level when the drive operates below the
nominal load. The total efficiency (motor and the drive) can
be improved by 1% to 10%, depending on the load torque
and speed. The disadvantage of this function is that the
dynamic performance of the drive is weakened.
Inactive
Active
Activates/deactivates the Flux braking function. See section
Flux braking on page 140.
Inactive
Flux level is limited during the braking. Deceleration time is
longer compared to full braking. The moderate mode is
always used with permanent magnet motor selection and
vector control.
Maximum braking power. Almost all available current is
used to convert the mechanical braking energy to thermal
energy in the motor.
Actual signals and parameters 241
HI.
LO.
HI.
Def/FbEq
0.0 Hz /
1 rpm
1 = 0.1 Hz
/ 1 rpm
0.0 Hz /
1 rpm
1 = 0.1 Hz
/ 1 rpm
0.0 Hz /
1 rpm
1 = 0.1 Hz
/ 1 rpm
OFF
0
1
OFF
0
1
2