Mitsubishi Electric Melservo MR-J3-100B, Handbook

Page: 544 / 590

Part 8: Review on Replacement of Optional Peripheral Equipment
8 - 59
7.2 MR-J3/MR-J3W series Power Factor Improving AC Reactor
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
W1 C
Z RX S Y T
H ±
5
D1
Y
Z
S
Installation screw
T
MC
MCCB
Y Y
Z Z
S S
T T
MC
MCCB
Y Y
Z Z
S S
T T
MC
MCCB
FR-BAL-(H)
Servo amplifier
3-phase 200 V class
or
3-phase 400 V class
X R
L
1
L
2
L
3
3-phase
or
200 to 230 V AC
3-phase
380 to 480 V AC
FR-BAL
X
Servo amplifier
1-phase 200 V class
R
L
1
L
2
(Note)
1-phase
200 to 230 V AC
L
3
FR-BAL
X
Servo amplifier
1-phase 100 V class
R
L
1 1-phase
100 to 120 V AC
L
2
Blank
D ±
5
Note. For the 1-phase 200 to 230 V AC power supply, Connect the power supply to L
1
, L
2
and leave L
3
open.