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13. CHARACTERISTICS
13.2 Power supply equipment capacity and generated loss
(1) Amount of heat generated by the servo amplifier
Table 12.1 indicates servo amplifier's power supply capacities and losses generated under rated load.
For thermal design of an enclosure, use the values in Table 13.1 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 13.1 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
]
HC-KFS053 13 0.3 25 15 0.5 5.4
HC-MFS053 13 0.3 25 15 0.5 5.4
MR-J2S-10CP(1)
HC-UFS13 0.3 25 15 0.5 5.4
HC-KFS23 0.5 25 15 0.5 5.4
HC-MFS23 0.5 25 15 0.5 5.4
MR-J2S-20CP(1)
HC-UFS23 0.5 25 15 0.5 5.4
HC-KFS43 0.9 35 15 0.7 7.5
HC-MFS43 0.9 35 15 0.7 7.5
MR-J2S-40CP(1)
HC-UFS43 0.9 35 15 0.7 7.5
HC-SFS52 1.0 40 15 0.8 8.6
HC-SFS53 1.0 40 15 0.8 8.6
MR-J2S-60CP
HC-LFS52 1.0 40 15 0.8 8.6
HC-KFS73 1.3 50 15 1.0 10.8
HC-MFS73 1.3 50 15 1.0 10.8
MR-J2S-70CP
HC-UFS72
73 1.3 50 15 1.0 10.8
HC-SFS81 1.5 50 15 1.0 10.8
HC-SFS102 103 1.7 50 15 1.0 10.8
MR-J2S-100CP
HC-LFS102 1.7 50 15 1.0 10.8
HC-SFS121 2.1 90 20 1.8 19.4
HC-SFS201 3.5 90 20 1.8 19.4
HC-SFS152 153 2.5 90 20 1.8 19.4
HC-SFS202 203 3.5 90 20 1.8 19.4
HC-RFS103 1.8 50 15 1.0 10.8
HC-RFS153 2.5 90 20 1.8 19.4
HC-UFS152 2.5 90 20 1.8 19.4
MR-J2S-200CP
HC-LFS152 2.5 90 20 1.8 19.4
HC-SFS301 4.8 120 20 2.7 29.1
HC-SFS352 353 5.5 130 20 2.7 29.1
HC-RFS203 3.5 90 20 1.8 19.4
HC-UFS202 3.5 90 20 1.8 19.4
MR-J2S-350CP
HC-LFS202 3.5 90 20 1.8 19.4
HC-SFS502 7.5 195 25 3.9 42.0
HC-RFS353 5.5 135 25 2.7 29.1
HC-RFS503 7.5 195 25 3.9 42.0
HC-UFS352 5.5 195 25 3.9 42.0
HC-UFS502 7.5 195 25 3.9 42.0
HC-LFS302 4.5 120 25 2.4 25.8
MR-J2S-500CP
HA-LFS502 7.5 195 25 3.9 42.0
HC-SFS702 10.0 300 25 6.0 64.6
MR-J2S-700CP
HA-LFS702 10.6 300 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 option, Refer to section 14.1.1.