ABB ACS355 series User Manual

Program features 145
 Settings
Parameter groups 23 SPEED CONTROL and 20 LIMITS
 Diagnostics
Actual signal 0102 SPEED
Speed control performance figures
The table below shows typical performance figures for speed control.
100
t (s)
T
T
N
(%)
T
load
n
act
-n
ref
n
N
Area < 1% s
T
N
= rated motor torque
n
N
= rated motor speed
n
act
= actual speed
n
ref
= speed reference
Speed
control
No pulse
encoder
With pulse
encoder
Static
accuracy
20% of motor
nominal slip
2% of motor
nominal slip
Dynamic
accuracy
< 1% s with
100% torque
step
< 1% s with
100% torque
step

ABB ACS355 series Specifications

General

Power Range	0.37 to 22 kW
Protection Class	IP20
Output Frequency	0 to 500 Hz
Braking Chopper	Built-in
Control Method	Scalar control, Vector control
Ambient Temperature	-10 to +50 °C
Communication Protocols	Modbus, CANopen
Protection Features	Overcurrent, Overvoltage, Undervoltage, Overtemperature
Cooling Method	Air-cooled
Number of Phases	3-phase