Power Factor Improving Reactors; Relays (Recommended) - Mitsubishi Electric MR-J3-10B Instruction Manual

11. OPTIONS AND AUXILIARY EQUIPMENT

11.11 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 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
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obtained unless all servo amplifiers are operated.
C
Note. For the 1-phase 230V power supply, Connect the power supply to L1, L2 and leave L3 open.
Servo amplifier
MR-J3-10B/20B/10B1
MR-J3-40B/20B1
MR-J3-60B/70B/40B1
MR-J3-100B
MR-J3-200B
MR-J3-350B
MR-J3-500B
MR-J3-700B

11.12 Relays (Recommended)

The following relays should be used with the interfaces:
Relay used for digital input command signals (interface DI-1) To prevent defective contacts , use a relay for small signal
Relay used for digital output signals (interface DO-1)
W
Installation screw
RX S Y T Z
W1
Model
W
FR-BAL-0.4K 135
FR-BAL-0.75K 135
FR-BAL-1.5K 160
FR-BAL-2.2K 160
FR-BAL-3.7K 220
FR-BAL-7.5K 220
FR-BAL-11K 280
FR-BAL-15K 295
Interface
[Unit : mm]
NFB
3-phase
200 to 230VAC
NFB
D1
(Note)
1-phase
230VAC
NFB
1-phase
100 to120VAC
Dimensions [mm]
W1 H D
120 115 59
120 115 69
145 140 71
145 140 91
200 192 90
200 194 120
255 220 135
270 275 133
(twin contacts).
(Ex.) Omron : type G2A , MY
Small relay with 12VDC or 24VDC of 40mA or less
(Ex.) Omron : type MY
11 - 41
FR-BAL
MC
R X
S Y
T Z
FR-BAL
MC
R X
S Y
T Z
FR-BAL
MC
R X
S Y
T Z
Mounting Terminal
D1 C screw size screw size
0
45 7.5 M4
-2.5
0
57 7.5 M4
-2.5
0
55 7.5 M4
-2.5
0
75 7.5 M4
-2.5
70 5 10 M5
100 5 10 M5
100 12.5 M6
110 12.5 M6
Selection example
Servo amplifier
MR-J3- B
L
1
L
2
L
3
Servo amplifier
MR-J3- B
L
1
L
2
L
3
Servo amplifier
MR-J3- B1
L
1
Blank
L
2
Mass
[kg (lb)]
M3.5 2.0 (4.4)
M3.5 2.8 (6.17)
M3.5 3.7 (8.16)
M3.5 5.6 (12.35)
M4 8.5 (18.74)
M5 14.5 (32.0)
M6 19 (41.9)
M6 27 (59.5)