Power Supply Capacity And Generated Loss - Mitsubishi MR-JE-10A Instruction Manual

10. CHARACTERISTICS

10.2 Power supply capacity and generated loss

(1) Amount of heat generated by the servo amplifier
Table 10.1 indicates servo amplifiers' power supply capacities and losses generated under rated load.
For thermal design of an enclosed type cabinet, use the values in the table in consideration for the worst
operating conditions. The actual amount of generated heat will be intermediate between values at rated
torque and servo-off according to the duty used during operation. When the servo motor is run at less
than the rated speed, the power supply capacity will be smaller than the value in the table, but the servo
amplifier's generated heat will not change.
Table 10.1 Power supply capacity and generated loss per servo motor at rated output
Servo amplifier
MR-JE-10A
MR-JE-20A
MR-JE-40A
MR-JE-70A
MR-JE-100A
MR-JE-200A
MR-JE-300A
Note 1. Note that the power supply capacity will vary according to the power supply impedance. This value is
Servo motor
HG-KN13_
HG-KN23_
HG-KN43_
HG-KN73_
HG-SN52_
HG-SN102_
HG-SN152_
HG-SN202_
HG-SN302_
applicable when the power factor improving AC reactor is not used.
2. Heat generated during regeneration is not included in the servo amplifier-generated heat. To calculate
heat generated by the regenerative option, refer to section 11.2.
(Note 2) Servo amplifier-
(Note 1)
generated heat [W]
Power supply
capacity [kVA]
At rated output
0.3 25
0.5 25
0.9 35
1.3 50
1.0 40
1.7 50
2.5
90
3.5
4.8 120
10 - 2
Area required
for heat
dissipation [m
With servo-off
15 0.5
15 0.5
15 0.7
15 1.0
15 0.8
15 1.0
20 1.8
20 2.4
2
]