14 - 71 14. OPTIONS AND AUXILIARY EQUIPMENT
14.12 Power factor improving reactors The power factor improving reactors improve th e 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 supp ly, it may be slightly lower than 90%. In addition, it reduces the higher harmonic of input side. When using power factor improving reactors f or two servo amplifiers or more, be sure to conn ect a power factor improving reactor to each servo amplifi er. If using only one power factor improving reactor, enough improvement effect of phase factor cannot be obtained unless all servo amplifiers are op erated. Z
3-phase
200 to
230VAC
or
3-phase
380 to
480VAC
NFB
Servo amplifie
r
MR-J3- T(4)
R
S
T
X
Y
Z
L1
L2
L3
MC
1-phase
200v to 230VAC
NFB
FR-BAL
Servo amplifier
MR-J3- T
R
S
T
X
Y
Z
L1
L2
L3
MC
W
W1C
RXSYTZ
H 5
D1
Installation screw
D 5
[Unit : mm]
(Note)
1-phase
100 to120VAC
NFB
FR-BAL
Servo amplifier
MR-J3- T1
R
S
T
X
Y
L1
Blank
MC
L2
FR-BAL-(H)