Fagor DDS, Hardware Manual

Page: 241 / 386

   Power line connection
POWER LINE CONNECTION
Line
inductan
ce
6.
241
DDS
HARDWARE
Ref.1310
6.6 Line inductance
Line inductance means including chokes on each of the three power lines.
Its function is to reduce the harmonics generated in mains. The
recommended value is given by the formula:
To simplify the choice, we could consider optimum the values given in the
following table:
When not installing the mains filter, we recommend to use the line induc-
tance in order to minimize disturbances, although is warned that
this in-
ductance does not guarantee the compliance with the CE seal .
T. H6/6 Line inductance selection according to the power supply or
compact drive installed.
PS-25B4 PS-65A ACD/SCD/CMC
1.08 / 1.15
ACD/SCD/CMC
1.25
L (mH) 1 0.4 5 3
Irms (A) 40 100 11 18
L
V 0.04 
2

f I
rms

-------------------------- =
MANDATORY. Do not install line chokes in line with RPS or XPS regen-
erative power supplies. They generate interference in the regenerating
mechanism.