ABB ACS355 User Manual

232 Actual signals and parameters
2506 CRIT SPEED 3
LO
See parameter 2502 CRIT SPEED 1 LO. 0.0 Hz /
1rpm
0.0…500.0 Hz /
0…30000 rpm
See parameter 2502.1 = 0.1Hz
/ 1 rpm
2507 CRIT SPEED 3
HI
See parameter 2503 CRIT SPEED 1 HI. 0.0 Hz /
1rpm
0.0…500.0 Hz /
0…30000 rpm
See parameter 2503.1 = 0.1Hz
/ 1 rpm
26 MOTOR
CONTROL
Motor control variables
2601 FLUX OPT
ENABLE
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.
OFF
OFF Inactive 0
ON Active 1
2602 FLUX
BRAKING
Activates/deactivates the Flux braking function. See section
Flux braking on page 138.
OFF
OFF Inactive 0
ON Active 1
All parameters
No. Name/Value Description Def/FbEq

ABB ACS355 Specifications

General

Input Voltage	200 V to 240 V AC, 380 V to 480 V AC
Frequency	47 Hz to 63 Hz
Control Method	Scalar control
Protection Features	Overcurrent, Overvoltage, Undervoltage, Overtemperature, Short circuit
Communication Interfaces	Modbus RTU, CANopen
Enclosure Rating	IP20
Operating Temperature	-10°C to +50°C (14°F to 122°F)
Storage Temperature	-40°C to +70°C (-40 to +158 °F)
Humidity	95% RH (non-condensing)
Altitude	Up to 1000 m (3280 ft) without derating