Mitsubishi Electric MELSERVO-JE MR-JE-100A, Instruction Manual

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10. CHARACTERISTICS
10 - 3
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
(Note 2) Servo amplifier-
generated heat [W]
Servo amplifier Servo motor
(Note 1)
Power supply
capacity [kVA] At rated output With servo-off
Area required
for heat
dissipation [m
2
]
MR-JE-10A HF-KN13 0.3 25 15 0.5
MR-JE-20A HF-KN23 0.5 25 15 0.5
MR-JE-40A HF-KN43 0.9 35 15 0.7
HF-KN73 1.3 50 15 1.0
MR-JE-70A
HF-SN52 1.0 40 15 0.8
MR-JE-100A HF-SN102 1.7 50 15 1.0
HF-SN152 2.5
MR-JE-200A
HF-SN202 3.5
90 20 1.8
MR-JE-300A HF-SN302 4.8 120 20 2.4
Note 1. Note that the power supply capacity will vary according to the power supply impedance. This value is
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.