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12. OPTIONS AND AUXILIARY EQUIPMENT
12.14 Power factor improving reactors
The power factor improving reactors improve the phase factor by increasing the form factor of servo amplifier's
input current.
It can reduce the power capacity.
The input power factor is improved to be about 90
. For use with a 1-phase power supply, it may be slightly
lower than 90
.
In addition, it reduces the higher harmonic of input side.
When using power factor improving AC reactors for two or more servo amplifiers, be sure to connect a power
factor improving AC reactor to each servo amplifier.
If using only one power factor improving AC reactor, enough improvement effect of phase factor cannot be
obtained unless all servo amplifiers are operated.
W
W1C
RXSYTZ
H 5
D1
Installation screw
D 5
Y
Z
S
T
MCNFB
Y
Z
S
T
MCNFB
Y
Z
S
T
MCNFB
FR-BAL-(H)
Servo amplifier
MR-J3- A(4)
XR
L
1
L
2
L
3
3-phase
200 to 230VAC
or
3-phase
380 to 480VAC
FR-BAL
Servo amplifier
MR-J3- A
X
Y
Z
R
S
T
L
1
L
2
(Note)
1-phase
200 to 230VAC
L3
FR-BAL
Servo amplifier
MR-J3- A1
X
Y
Z
R
S
T
L
1
1-phase
100 to 120VAC
L2
Blank
Note. For the 1-phase 200 to 230VAC power supply, Connect the
power supply to L
1
, L
2
and leave L
3
open.