Inrush Currents At Power-On Of Main Circuit And Control Circuit - Mitsubishi Electric MR-J2S B Series 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 value) that will flow when the maximum
permissible voltage (253VAC) is applied at the power supply capacity of 2500kVA and the wiring length of
10m.
Servo amplifier
MR-J2S-10B 20B
MR-J2S-40B 60B
MR-J2S-70B 100B
MR-J2S-200B 350B
MR-J2S-500B
MR-J2S-700B
MR-J2S-11KB
MR-J2S-15KB
MR-J2S-22KB
MR-J2S-10B1 20B1
MR-J2S-40B1
Since large inrush currents flow in the power supplies, always use no-fuse breakers and magnetic
contactors. (Refer to section 12.2.2.)
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
30A (Attenuated to approx. 5A 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)
59A (Attenuated to approx. 5A in 4ms)
72A (Attenuated to approx. 5A in 4ms)
Inrush Currents (A
0-p
, L , L ) Control circuit power supply (L
1 2 3
(Attenuated to approx. 0A in 0.5 to 1ms)
(Attenuated to approx. 0A in 0.5 to 1ms)
(Attenuated to approx. 0A in several ms)
(Attenuated to approx. 0A in 0.5 to 1ms)
11 - 8
)
11
70 to 100A
100 to 130A
30A
100 to 130A
, L )
21