Diagnostics; Speed Control Performance Figures; Torque Control Performance Figures - ABB ACS355 User Manual

Diagnostics

Actual signal 0102 SPEED

Speed control performance figures

The table below shows typical performance figures for speed control.
Speed No pulse
control encoder
Static 20% of motor
accuracy nominal slip
Dynamic < 1% s with
accuracy 100% torque
step

Torque control performance figures

The drive can perform precise torque control without any speed feedback from the
motor shaft. The table below shows typical performance figures for torque control.
Torque No pulse
control encoder
Non-linearity ± 5% with
nominal
torque
(± 20% at the
most
demanding
operating
point)
Torque step < 10 ms with
rise time nominal
torque
With pulse
encoder
2% of motor
nominal slip
< 1% s with
100% torque
n
step
T
n
n
T
(%)
T
N
100
With pulse
90
encoder
± 5% with
nominal
torque
< 10 ms with
10
nominal
torque
T
T
Program features 143
T
(%)
T
N
T
load
100
-n
act ref
n
N
= rated motor torque
N
= rated motor speed
N
= actual speed
act
T
ref
T
act
< 5 ms
= rated motor torque
N
= torque reference
ref
t (s)
Area < 1% s
t (s)