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13. OPTIONS AN
D AUXILIARY EQUIPMENT
13.11 Power factor improving DC reactor
POINT
For the 100V power supply type (MR-J3- T1), the power factor improving DC
reactor cannot be used.
The power factor improving DC reactor increases the form factor of the servo amplifier's input current to
improve the power factor. It can decrease the power supply capacity. As compared to the power factor
improving AC reactor (FR-BAL), it can decrease the loss. The input power factor is improved to about 95%.
It is also effective to reduce the input side harmonics.
When connecting the power factor improving DC reactor to the servo amplifier, always disconnect P
1 and P2
(For 11kW or more, disconnect P
1 and P). If it remains connected, the effect of the power factor improving DC
reactor is not produced.
When used, the power factor improving DC reactor generates heat. To release heat, therefore, leave a 10cm
or more clearance at each of the top and bottom, and a 5cm or more clearance on each side.
[Unit: mm]
Rating plate
L
H
B or less
E
A or less
Terminal box - screw size G
Mounting leg
D
F
C or less
Servo amplifier
P
1
P
2
(Note 2)
FR-BEL-(H)
2-F L notch
5m or less
Servo amplifier
P
1
P
2
(Note 2)
FR-BEL-(H)
(Note 3)
B or lessA or less
Mounting leg
Rating plate
2-F L notch
Screw size G
(Note 1)Terminal cover
E
D
H
F
L
C or less
5m or less
Fig. 13.1 Fig. 13.2
Note 1. Since the terminal cover is supplied, attach it after connecting a wire.
2. When using DC reactor, disconnect P
1 and P2.
3. When over 11kW, "P
2" becomes "P" respectively.