Mitsubishi Electronics MR-J2S- CL User Manual
13 - 2
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 amplifiers' 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.
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
At 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-10CL (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-20CL (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-40CL (1)
HC-UFS43
0.9
35
15
0.7
7.5
HC-SFS52
1.0
40
15
0.8
8.6
MR-J2S-60CL
HC-SFS53
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-70CL
HC-UFS72 73
1.3
50
15
1.0
10.8
HC-SFS81
1.5
50
15
1.0
10.8
MR-J2S-100CL
HC-SFS102 103
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
1.7
50
15
1.0
10.8
HC-RFS153
2.5
90
20
1.8
19.4
MR-J2S-200CL
HC-UFS152
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
MR-J2S-350CL
HC-UFS202
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
MR-J2S-500CL
HC-UFS502
7.5
195
25
3.9
42.0
MR-J2S-700CL
HC-SFS702
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, use Equation 14.1 in Section 14.1.1.