Mitsubishi Electric MR-J3-B, Instruction Manual

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10 - 2
10. CHARACTERISTICS
10.2 Power supply equipment 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 enclosure, use the values in Table 10.1 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
maximum 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 heat per servo amplifier at rated output
(Note 2)
Servo amplifier-generated heat[W]
Area required for heat dissipation
Servo amplifier Servo motor
(Note 1)
Power supply
capacity[kVA] At rated torque With servo off [m 2 ] [ft 2 ]
HF-MP053 0.3 25 15 0.5 5.4
HF-MP13 0.3 25 15 0.5 5.4 MR-J3-10B (1)
HF-KP053 13 0.3 25 15 0.5 5.4
HF-MP23 0.5 25 15 0.5 5.4
MR-J3-20B (1)
HF-KP23 0.5 25 15 0.5 5.4
HF-MP43 0.9 35 15 0.7 7.5
MR-J3-40B (1)
HF-KP43 0.9 35 15 0.7 7.5
HF-SP52 1.0 40 15 0.8 8.5
MR-J3-60B
HF-SP51 1.0 40 15 0.8 8.5
HF-MP73 1.3 50 15 1.0 10.8
MR-J3-70B
HF-KP73 1.3 50 15 1.0 10.8
HF-SP102 1.7 50 15 1.0 10.8
MR-J3-100B
HF-SP81 1.5 50 15 1.0 10.8
HF-SP152 2.5 90 20 1.8 19.8
HF-SP202 3.5 90 20 1.8 19.8
HF-SP121 2.1 90 20 1.8 19.8
MR-J3-200B
HF-SP201 3.5 90 20 1.8 19.8
MR-J3-350B HF-SP352 5.5 130 20 2.7 29.1
MR-J3-500B HF-SP502 7.5 195 25 3.9 42
MR-J3-700B HF-SP702 10.0 300 25 6.0 64.6
Note 1. Note that the power supply capacity will vary according to the power supply impedance. This value assumes that the power
factor improving 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 brake option, in Section 11.2.