Mitsumi electronic IB-1500875(ENG)-E ユーザーズマニュアル

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1. When two or more servomotor axes are connected, do the calculation with the largest rated 

capacity of the servomotor if a value obtained by multiplying the total sum of the servomotor rated 

output by "0.7" is smaller than the largest rated capacity of the servomotors.

Example: HF Series

(1)For "HF903 (9.0kW) + HF104 (1.0kW)", "0.7 x (9.0 + 1.0) =7.0 < 9.0" is applied.

     So, do the calculation with applying "9.0kW" to the total sum of the servomotor's rated output.

(2)For "HF903 (9.0kW) + HF903 (9.0kW)", "0.7 x (9.0 + 9.0) = 12.6 > 9.0" is applied.

     So, do the calculation with applying "12.6kW" to the total sum of the servomotor's rated output.

Example: HF-H Series

(1)For "HF-H903 (9.0kW) + HF-H104 (1.0kW)", "0.7 x (9.0 + 1.0) =7.0 < 9.0" is applied.

     So, do the calculation with applying "9.0kW" to the total sum of the servomotor's rated output.

(2)For "HF-H903 (9.0kW) + HF-H903 (9.0kW)", "0.7 x (9.0 + 9.0) = 12.6 > 9.0" is applied.

     So, do the calculation with applying "12.6kW" to the total sum of the servomotor's rated output.

2. When reducing the time constant replacing the conventional motor with the HF, HP, HF-KP, HF-H, 

HP-H or HC-H Series motor, the power supply capacity may rise because the motor maximum 

momentary output increases more than the conventional motor. Therefore, make sure to check the 

selection with maximum momentary rated capacity.

3. When the large capacity drive unit (MDS-D-SP-400/640, MDS-DH-SP-200/320/450, MDS-DH-V1-

200) is connected to the power supply unit, always install the drive unit proximally in the left side of 

the power supply unit and connect PN terminal with the dedicated DC connection bar.

4. When using two large capacity drive units or more, the power supply unit is required for each drive 

unit.

5. This power supply selection is calculated with the servomotor effective load rate of approximate 

80%. Considering the operation pattern, if the servomotor effective load rate is lower than this, the 

required rated capacity of the power supply can be decreased.