Power Factor Improving Ac Reactors - Mitsubishi Electric Melservo-J3 Series MR-J3-B Instruction Manual

11. OPTIONS AND AUXILIARY EQUIPMENT

11.14 Power factor improving AC reactors

The power factor improving AC 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 reactors for two servo amplifiers or more, be sure to connect a power factor
improving reactor to each servo amplifier.
If using only one power factor improving reactor, enough improvement effect of phase factor cannot be
obtained unless all servo amplifiers are operated.
W
R X S Y T Z
C W1
[Unit : mm]
3-phase
200 to 230VAC
3-phase
380 to 480VAC
D1
Installation screw
(Note)
1-phase
200v to 230VAC
1-phase
100 to120VAC
Note. For the 1-phase 200V to 230V power supply, Connect the power
supply to L
11 - 73
MC
NFB
or
MC
NFB
MC
NFB
, L and leave L open.
1 2 3
Servo amplifier
FR-BAL-(H)
MR-J3-
R X
L
1
S Y
L
2
T Z
L
3
Servo amplifier
FR-BAL
MR-J3-
R X
L
1
S Y
L
2
T Z
L
3
Servo amplifier
FR-BAL
MR-J3-
R X
L
1
S Y
Blank
T Z
L
2
B(4)
B
B1