Power Factor Correction Capacitors - ABB ACS 600 Hardware Manual

Without Filter
5
4 ,5
4
3 ,5
3
2 ,5
2
1 ,5
1
0 ,5
0
0
0
With dv/dt Filter
5
4,5
4
3,5
3
2,5
2
1,5
1
0,5
0
0
0
Power Factor
Correction Capacitors
601/604/607 US Supplement
Below is a diagram of V
no dv/dt filter is used.
V
PK
5 0 1 00
Cable length
Below is a diagram of V
dv/dt filter at the output of the ACx 600.
V
PK
50 100
Cable length
Power factor correction capacitors and surge absorbers must not be
connected between the drive and the motor. These devices are not
designed to be used with AC drives, and will degrade motor control
accuracy. They can cause permanent damage to the ACx 600 or
themselves due to the rapid changes in the ACx 600 output voltage.
and dv/dt as a function of cable length when
PK
/ V
N
dv/dt / (kV/µs)
1 50 2 00
500
and dv/dt as a function of cable length with
PK
/ V
N
dv/dt / (kV/µs)
150 200
500
Safety Instructions
(m)
2 50 3 00
1000
(feet)
(m)
250 300
1000
(feet)
ix