Program features 73
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 < 10% s
T
N
= rated motor torque
n
N
= rated motor speed
n
act
= actual speed
n
ref
= speed reference
Speed control
Performance
Static accuracy
20% of motor
nominal slip
Dynamic accuracy
< 1% s with 100%
torque step
t
(s)
T
N
= rated motor torque
T
ref
= torque reference
T
act
= actual torque
Torque control
Performance
Non-linearity
± 5% with nominal
torque
(± 20% at the most
demanding operating
point)
Torque step rise time < 10 ms with nominal
torque
100
< 5 ms
90
10
T
ref
T
act
T
T
N
(%)
ACS380 FW.book Page 73 Friday, May 4, 2018 4:18 PM
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