Power Supply Equipment Capacity And Generated Loss - Mitsubishi Electric MR-J2M-P8B Instruction Manual

11. CHARACTERISTICS

11.2 Power supply equipment capacity and generated loss

(1) Amount of heat generated by the drive unit
Table 11.1 indicates drive unit's 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
generated heat will not change.
Table 11.1 Power supply capacity and generated heat at rated output
Unit Servo motor
HC-KFS053 13
MR-J2M-10DU
HC-MFS053 13
HC-UFS13
HC-KFS23
MR-J2M-20DU
HC-MFS23
HC-UFS23
HC-KFS43
MR-J2M-40DU
HC-MFS43
HC-KFS73
MR-J2M-70DU HC-MFS73
HC-UFS73
MR-J2M-P8B
MR-J2M-BU4
MR-J2M-BU6
MR-J2M-BU8
Note 1. Note that the power supply capacity will vary according to the power supply impedance.
This value applies to the case where the power factor improving reactor is not used.
2. Heat generated during regeneration is not included in generated heat. To calculate heat generated by the regenerative brake
option, use Equation 12.1 in Section 12.1.1.
(Note 1)
Power supply
capacity[kVA]
At rated torque
0.3 11
0.3 11
0.3 11
0.5 14
0.5 14
0.5 14
0.9 20
0.9 20
1.3 40
1.3 40
1.3 40
0.1 9
0 4
0 4
0 4
11 - 2
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(Note 2)
Generated heat[W]
At servo off
6
6
6
6
6
6
6
6
6
6
6
9
4
4
4
Area required for heat dissipation
[m 2 ] [ft 2 ]
0.2 2.16
0.2 2.16
0.2 2.16
0.3 3.24
0.3 3.24
0.3 3.24
0.4 4.32
0.4 4.32
0.7 7.54
0.7 7.54
0.7 7.54
0.2 2.16
0.1 1.08
0.1 1.08
0.1 1.08