Vesta A SERIES, Service Manual

Page: 7 / 42

7
EMI FILTER
EMI Filter Functions:
1. To adjust the frequency changes to the value of 50-60 Hz
which is the nominal frequency for the components.
2. To prevent harmonic frequency feedback sent by motor ,
resistance to the the network.
Figure 7
. EMI Filter
Technical features :
Rated Voltage 250 V
Rated Current 16 A
Cx 0,47 µ F (±20%)
Cy 2 x 25 nF (±20%)
L 2 x 1 mH (+%50,-%30)
R 680 k
Ω (
±10%)
Checking of component :
Check the resistance value on the component with multimeter as shown in Figure 8.
Resistance value on the EMI filter (between L-N polars) should be 680 kohm (±10%).