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2 - Fagor Automation

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6.6 Line inductance<br />

Line inductance means including chokes on each of the three power lines.<br />

Its function is to reduce the harmonics generated in mains. The<br />

recommended value is given by the formula:<br />

L<br />

V0.04 = -------------------------<br />

2f I<br />

rms<br />

To simplify the choice, we could consider optimum the values given in the<br />

following table:<br />

T. H6/6 Line inductance selection according to the power supply or<br />

compact drive installed.<br />

PS-25B4 PS-65A ACD/SCD/CMC<br />

1.08 / 1.15<br />

ACD/SCD/CMC<br />

1.25<br />

L (mH) 1 0.4 5 3<br />

Irms (A) 40 100 11 18<br />

When not installing the mains filter, we recommend to use the line inductance<br />

in order to minimize disturbances, although is warned that this inductance<br />

does not guarantee the compliance with the CE seal.<br />

MANDATORY. Do not install line chokes in line with RPS or XPS regenerative<br />

power supplies. They generate interference in the regenerating<br />

mechanism.<br />

Power line connection<br />

POWER LINE CONNECTION<br />

Line inductance 6.<br />

DDS<br />

HARDWARE<br />

Ref.1307<br />

241

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