Power Factor Improving Dc Reactors - Mitsubishi Electric MELSERVO-J4 Series Instruction Manual

11.11

Power factor improving DC reactors

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 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 dissipate heat, therefore, maintain a minimum
clearance of 10 cm each at the top and bottom, and 5 cm at the sides.
200 V class
2-d mounting hole
(Varnish is removed from right mounting
hole (face and back side).)
P P1
W1
W ± 2
Servo amplifier Power factor
improving
DC reactor
MR-J4-10GF(-RJ) FR-HEL-0.4K
MR-J4-20GF(-RJ)
MR-J4-40GF(-RJ) FR-HEL-0.75K
MR-J4-60GF(-RJ) FR-HEL-1.5K
MR-J4-70GF(-RJ)
MR-J4-100GF(-RJ) FR-HEL-2.2K
*1 Use this for grounding.
*2 When using the power factor improving DC reactor, remove the short bar between P3 and P4.
*3 Maximum dimensions. The dimension varies depending on the input/output lines.
*4 Selection conditions of wire size are as follows.
Wire type: 600 V Grade heat-resistant polyvinyl chloride insulated wire (HIV wire)
Construction condition: Single wire set in midair
*1
D or less
Dimensions [mm]
*3
W W1 H D D1

70 60 71 61
85 74 81 61
85 74 81 70
85 74 81 70
Servo amplifier
FR-HEL
P3
*2
P4
5 m or less
Terminal
size
D2 D3 d

21 M4 M4
21 M4 M4
30 M4 M4
30 M4 M4
11 OPTIONS AND PERIPHERAL EQUIPMENT
11.11 Power factor improving DC reactors
11
2
Mass Wire [mm ]
*4
[kg]
0.4 2 (AWG 14)
0.5
0.8
0.9
407