Selection Of Power Supply - Mitsubishi Electric MDS-EX-CVP Series Technical Specification And Instruction Manual

MDS-EX-CVP Series Specifications and Instruction Manual
7. Selection

7.2 Selection of Power Supply

For the power supply capacity, calculate both the required spindle motor rated output and the servo motor rated output,
and select the power supply capacity satisfying them.
(1) Calculation of rated output required for power supply
Rated output required for power supply =
Σ (Spindle motor rated output required for power supply) + 0.3 Σ (servo motor rated output required
for power supply)
Calculate the total sum of "Spindle motor rated output" and "servo motor rated output" required for the power supply
with the above expression.
(2) Calculation of required power supply capacity
Power supply capacity (kVA) = Σ {(Required rated output calculated in the item (1) (kW) / Continuous rated
output of power supply unit (kW)) × Power supply capacity base value (kVA)}
Calculate "the required power supply capacity" with the above expression.
The power supply capacity base value corresponding to the capacity of the power supply unit "MDS-EX-CVP-1100H"
is as the following table.
Refer to the latest version of "MDS-E/EH Series Specifications Manual" (IB-1501226(ENG)) for
calculation method of spindle motor rated output and the servo motor rated output required for power
supply.
Unit MDS-EX-CVP
Power supply capacity base value [kVA]
29
1100H
130
IB-1501587-A