Inrush Currents At Power-On Of Main Circuit And Control Circuit - Mitsubishi Electric MELSERVO MR-J2S- A Instruction Manual

12. CHARACTERISTICS

12.5 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
1m.
Servo Amplifier
MR-J2S-10A 20A
MR-J2S-40A 60A
MR-J2S-70A 100A
MR-J2S-200A 350A
MR-J2S-500A
MR-J2S-700A
MR-J2S-11KA
MR-J2S-15KA
MR-J2S-22KA
MR-J2S-10A1 20A1
MR-J2S-40A1
Since large inrush currents flow in the power supplies, always use no-fuse breakers and magnetic
contactors. (Refer to Section 13.2.2.)
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)
12 - 8
)
11
70 to 100A
100 to 130A
30A
100 to 130A
, L )
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