Inrush Currents At Power-On Of Main Circuit And Control Circuit - Mitsubishi Electric Melservo MR-J3-A Instruction Manual

11. CHARACTERISTICS

11.5 Inrush currents at power-on of main circuit and control circuit

The following table indicates the inrush currents (reference data) that will flow when the maximum permissible
voltage (200VAC class: 253VAC, 400VAC class: 528VAC) is applied at the power supply capacity of 2500kVA
and the wiring length of 1m.
Servo Amplifier
MR-J3-10A1 to 40A1
MR-J3-10A to 60A
MR-J3-70A 100A
MR-J3-200A 350A
MR-J3-500A
MR-J3-700A
MR-J3-11KA
MR-J3-15KA
MR-J3-22KA
MR-J3-60A4 100A4
MR-J3-200A4
MR-J3-350A4 500A4
MR-J3-700A4
MR-J3-11KA4
MR-J3-15KA4
MR-J3-22KA4
Since large inrush currents flow in the power supplies, always use no-fuse breakers and magnetic contactors.
(Refer to section 12.12.)
When circuit protectors are used, it is recommended to use the inertia delay type that will not be tripped by an
inrush current.
Main circuit power supply (L
38A (Attenuated to approx. 14A in 10ms)
30A (Attenuated to approx. 5A in 10ms)
54A (Attenuated to approx. 12A in 10ms)
120A (Attenuated to approx. 12A in 20ms)
44A (Attenuated to approx. 20A in 20ms)
88A (Attenuated to approx. 20A in 20ms)
235A (Attenuated to approx. 20A in 20ms)
100A (Attenuated to approx. 5A in 10ms)
120A (Attenuated to approx. 12A in 20ms)
66A (Attenuated to approx. 10A in 20ms)
67A (Attenuated to approx. 34A in 20ms)
325A (Attenuated to approx. 20A in 20ms)
11 - 10
Inrush Currents (A - )
0 p
, L , L ) Control circuit power supply (L
1 2 3
(Attenuated to approx. 0A in 1 to 2ms)
30A (Attenuated to approx. 0A in 3ms)
(Attenuated to approx. 0A in 2ms)
41A (Attenuated to approx. 0A in 3ms)
45A (Attenuated to approx. 0A in 3ms)
, L )
11 21
20 to 30A
40 to 50A