Inrush Currents At Power-On Of Main Circuit And Control Circuit - Mitsubishi Electric MELSERVO-J4 Series Instruction Manual

10.5
Inrush currents at power-on of main circuit and
control circuit
For a servo amplifier of 600 W or less, the inrush current values can change depending on frequency of
turning on/off the power and ambient temperature.
Since large inrush currents flow in the power supplies, always use molded-case circuit breakers and magnetic contactors.
Page 404 Molded-case circuit breakers, fuses, magnetic contactors
When circuit protectors are used, it is recommended that the inertia delay type, which is not tripped by an inrush current, be
used.
200 V class
The following shows the inrush currents (reference data) that will flow when 240 V AC is applied at the power supply capacity.
Even when you use a 1-phase 200 V AC power supply with MR-J4-10GF(-RJ) to MR-J4-200GF(-RJ), the inrush currents of
the main circuit power supply is the same.
Servo amplifier
MR-J4-10GF(-RJ)
MR-J4-20GF(-RJ)
MR-J4-40GF(-RJ)
MR-J4-60GF(-RJ)
MR-J4-70GF(-RJ)
MR-J4-100GF(-RJ)
MR-J4-200GF(-RJ)
MR-J4-350GF(-RJ)
MR-J4-500GF(-RJ)
MR-J4-700GF(-RJ)
MR-J4-11KGF(-RJ)
MR-J4-15KGF(-RJ)
MR-J4-22KGF(-RJ)
400 V class
The following shows the inrush currents (reference data) that will flow when 480 V AC is applied at the power supply capacity.
Servo amplifier
MR-J4-60GF4(-RJ)
MR-J4-100GF4(-RJ)
MR-J4-200GF4(-RJ)
MR-J4-350GF4(-RJ)
MR-J4-500GF4(-RJ)
MR-J4-700GF4(-RJ)
MR-J4-11KGF4(-RJ)
MR-J4-15KGF4(-RJ)
MR-J4-22KGF4(-RJ)
Inrush currents (A )
0-P
Main circuit power supply (L1/L2/L3)
30 A (attenuated to approx. 3 A in 20 ms)
34 A (attenuated to approx. 7 A in 20 ms)
113 A (attenuated to approx. 12 A in 20 ms)
42 A (attenuated to approx. 20 A in 20 ms)
85 A (attenuated to approx. 20 A in 30 ms)
226 A (attenuated to approx. 30 A in 30 ms)
226 A (attenuated to approx. 50 A in 30 ms)
226 A (attenuated to approx. 70 A in 30 ms)
Inrush currents (A )
0-P
Main circuit power supply (L1/L2/L3)
65 A (attenuated to approx. 5 A in 10 ms)
80 A (attenuated to approx. 5 A in 10 ms)
100 A (attenuated to approx. 20 A in 10 ms)
65 A (attenuated to approx. 9 A in 20 ms)
68 A (attenuated to approx. 34 A in 20 ms)
339 A (attenuated to approx. 10 A in 30 ms)
339 A (attenuated to approx. 15 A in 30 ms)
339 A (attenuated to approx. 20 A in 30 ms)

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

Control circuit power supply (L11/L21)
20 A to 30 A (attenuated to approx. 1 A in 20 ms)
34 A (attenuated to approx. 2 A in 20 ms)
42 A (attenuated to approx. 2 A in 30 ms)
Control circuit power supply (L11/L21)
40 A to 50 A (attenuated to approx. 0 A in 2 ms)
41 A (attenuated to approx. 0 A in 3 ms)
38 A (attenuated to approx. 1 A in 30 ms)
10 CHARACTERISTICS
10
325