ABB ACS2000 User Manual page 30

30 A C S 2 0 0 0 , 4 K V U S E R M A N U A L
—
dV/dt filter
27
Refer to Figures 27 and 28. The INU includes a
dV/dt filter schematic
3-phase dV/dt filter connected to its AC output.
—
The filter protects the motor against excessive
28
Frame 1 dV/dt filter
voltage rate of rise. The filter components are:
(rear view shown)
inductors (1), resistors (2), and capacitors (3).
—
29
Frame 2 dV/dt filter
(front view shown)
DC +
—
30
Frame 3 dV/dt filter NP
(rear view shown)
DC -
1
2
3
—
27
1
2
3
—
28
INU dV/dt filter
DC link
1
To NP
Inductor
Resistors
Capacitors
3
1
Inductor
Resistors
Capacitors
TEU
U2
V2
W2
2
1 Inductor
2 Resistors
3
3 Capacitors
—
29
2
1 Inductor
2 Resistors
3 Capacitors
—
30
3 1
2
1
3
2