Sine Wave Filters - Eaton PowerXL DA1 Series Installation Manual

2 Engineering

2.8 Sine wave filters

2.8 Sine wave filters
62
TheDX-SIN3... sine wave filter removes high-frequency components from
the variable frequency drive's output voltage (U
conducted and radiated emission. The output voltage of the sine wave filter
reaches a sinusoidal shape with a lower overlapped output ripple.
The distortion factor of the sine wave voltage is typically 5 % to 10 %.
This reduces the noise generation and losses in the motor.
Mains
Figure 35:Maximum permissible motor cable lengths
a Screened motor cable: U
unscreened motor cable: U
￫
The DX-SIN3... sine wave filters are not permitted to be
operated with a lower frequency than the switching frequency
stated on the sine wave filter .
For this, the P6-02 parameter ("auto-temperature-manage-
ment") needs to be set to the double value of the switching
frequency set on the sine wave filter.
Permissible switching frequencies (P2-24) for DA1 with
DX-SIN3...: 1 ≙ 8 kHz; 2 ≙12 kHz
For the DA1 variable frequency drive, the set value with the
double-modulation procedure is the double value of the
effective value in the sine wave filter (1 ≙ 8 kHz → 4 kHz;
2 ≙ 12 kHz → 6 kHz).
￫
For the rated sine wave filters for DA1 variable frequency drives,
please refer to the technical data chapter in￫ section 6.11,
"Sine filters", page 191.
DA1 Variable Frequency Drives 08/18 MN04020005Z-EN www.eaton.com
U
2
DX-SIN3...
f
2
l
L
e
f
PWM
u
k
≦ 230 V → l ≦ 200 m; U ≦ 500 V → l ≦ 150 m
2 2
≦ 230 V → l ≦ 300 m; U ≦ 500 V → l ≦ 200 m
2 2
). This reduces the
2
Motor
①
M
3 ~
l