Mr-J4 Series Power Factor Improving Dc Reactors (200 V Class) - Mitsubishi Electric MELSERVO-J3 Series Manual

Part 7: Review on Replacement of Optional Peripheral Equipment

7.3 MR-J4 series Power factor improving DC reactors (200 V class)

The following shows the advantages of using power factor improving DC reactor.
It improves the power factor by increasing the form factor of the servo amplifier's input current.
It decreases the power supply capacity.
The input power factor is improved to be about 85%.
As compared to the power factor improving AC reactor (FR-HAL-(H)), it decreases the loss.
When connecting the power factor improving DC reactor to the servo amplifier, always disconnect P3 and
P4. 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 10
cm or more clearance at each of the top and bottom, and a 5 cm or more clearance on each side.
2-d mounting hole
(Varnish is removed from right mounting
hole (face and back side).) (Note 1)
P P1
W1
W ± 2
4-d mounting hole (Note 1)
W1
W ± 2
Note 1. Use this for grounding.
2. When using the Power factor improving DC reactor, remove the short bar across P3-P4.
POINT
For the 100 V AC power supply type (MR-J4-_A1) and MR-J4W2 series, the
power factor improving DC reactor cannot be used.
D or less
Fig. 7.3
D or less
D3 or less
D2
D1 ± 2
Fig. 7.5
4-d mounting hole
(Varnish is removed from front right mounting
hole (face and back side).) (Note 1)
P P1
W1
W ± 2
FR-HEL
7 - 51
D or less
D3
D2
D1
Fig. 7.4
Servo amplifier
P3
(Note 2)
P4
5 m or less