Instruction manual

11 - 2
11. CHARACTERISTICS
11.2 Power supply equipment capacity and generated loss
(1) Amount of heat generated by the servo amplifier
Table 11.1 indicates servo amplifiers' power supply capacities and losses generated under rated load. For
thermal design of an enclosure, use the values in Table 11.1 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 11.1 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 5.4MR-J3-10A (1)
HF-KP053
13 0.3 25 15 0.5 5.4
HF-MP23 0.5 25 15 0.5 5.4
MR-J3-20A (1)
HF-KP23 0.5 25 15 0.5 5.4
HF-MP43 0.9 35 15 0.7 7.5
MR-J3-40A (1)
HF-KP43 0.9 35 15 0.7 7.5
HF-SP52 1.0 40 15 0.8 8.5
MR-J3-60A
HF-SP51 1.0 40 15 0.8 8.5
HF-MP73 1.3 50 15 1.0 10.8
MR-J3-70A
HF-KP73 1.3 50 15 1.0 10.8
HF-SP102 1.7 50 15 1.0 10.8
MR-J3-100A
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-J3-200A
HF-SP201 3.5 90 20 1.8 19.8
MR-J3-350A HF-SP352 5.5 130 20 2.7 29.1
MR-J3-500A HF-SP502 7.5 195 25 3.9 42
MR-J3-700A 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 12.2.