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

10. CHARACTERISTICS

10.5 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 (200V class: 253VAC, 400V class: 528VAC) is applied at the power supply capacity of 2500kVA and
the wiring length of 1m (3.28ft).
Servo Amplifier
MR-J3-10B1 to 40B1
MR-J3-10B to 60B
MR-J3-70B 100B
MR-J3-200B 350B
MR-J3-500B
MR-J3-700B
MR-J3-11KB
MR-J3-15KB
MR-J3-22KB
MR-J3-60B4 100B4
MR-J3-200B4
MR-J3-350B4 500B4
MR-J3-700B4
MR-J3-11KB4
MR-J3-15KB4
MR-J3-22KB4
Since large inrush currents flow in the power supplies, always use no-fuse breakers and magnetic contactors.
(Refer to section 11.12.)
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)
10 - 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