Specifications
9.CHARACTERISTICS
9– 4
9-2 Losses generated in the servo amplifier
(1) Amount of heat generated by the servo amplifier
Table 9-1 indicates servo amplifiers' power supply capacities and losses generated under rated
load. For thermal design of an enclosure, use the values in Table 9-1 in consideration for the
worst operating conditions. The actual amount of generated heat will be intermediate between
values at rated torque and zero torque 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 9-1 Power Supply Capacity and Generated Heat Per Servo Amplifier at Rated Output
Servo Amplifier Servo Motor
(Note 1) Power
Supply
Capacity [kVA]
(Note 2) Servo Amplifier-Generated Heat
Area Required for
Heat Dissipation
At rated torque
[W]
With servo off
[W]
HC-MF053·13
HA-FF053·13
HC-UF13
HC-MF23
HA-FF23
HC-UF23
HC-MF43
HA-FF33
HA-FF43
HC-UF43
HA-FF63
0.3
0.3
0.3
0.5
0.5
0.5
0.9
0.7
0.9
0.9
1.1
1.0
1.0
1.3
1.3
1.7
1.7
2.1
3.5
2.5
3.5
1.7
2.5
2.5
4.8
5.5
3.5
3.5
MR-J2-10A(1)
MR-J2-20A(1)
MR-J2-40A(1)
MR-J2-60A
HC-SF52
HC-SF53
HC-MF73
HC-UF72·73
MR-J2-70A
HC-SF81
HC-SF102·103
MR-J2-100A
HC-SF121
HC-SF201
HC-SF152·153
HC-SF202·203
HC-RF103
HC-RF153
HC-UF152
MR-J2-200A
HC-SF301
HC-SF352·353
HC-RF203
HC-UF202
MR-J2-350A
25
25
25
25
25
25
35
35
35
35
40
40
40
50
50
50
50
90
90
90
90
90
90
90
120
130
90
90
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
20
20
20
20
20
20
20
20
20
20
20
0.5
0.5
0.5
0.5
0.5
0.5
0.7
0.7
0.7
0.7
0.8
0.8
1.0
1.0
1.0
1.0
1.0
1.8
1.8
1.8
1.8
1.8
1.8
1.8
2.7
2.7
1.8
1.8
[m
2
] [ft
2
]
5.4
5.4
5.4
5.4
5.4
5.4
7.5
7.5
7.5
7.5
8.6
8.6
10.8
10.8
10.8
10.8
10.8
19.4
19.4
19.4
19.4
19.4
19.4
19.4
29.1
29.1
19.4
19.4
Note: 1. Note that the power supply capacity will vary according to the power supply impedance.
2. Heat generated during regeneration is not included in the servo amplifier-generated heat.
To calculate heat generated by the regenerative brake option, use Equation 6-1 in Sec-
tion 6-1-1.