ABB ACS350 Series, Руководство пользователя

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Program features
114
Speed control performance figures
The table below shows typical performance figures for speed control.
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.
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
Torque control No pulse
encoder With pulse
encoder
Non-linearity ± 5% with nominal
torque
(± 20% at the
most demanding
operating point) ± 5% with nominal
torque
Torque step rise
time < 10 ms with
nominal torque < 10 ms with
nominal torque
100
t (s)
T
T
N
< 5 ms
90
10
(%)
T
ref
T
act
T
N
= rated motor torque
T
ref
= torque reference
T
act
= actual torque