Inrush Currents At Power-On Of Main Circuit And Control Circuit - Mitsubishi Electric MELSERVO MR-J5 Series User Manual

5.5
Inrush currents at power-on of main circuit and
control circuit
A molded-case circuit breaker and magnetic contactor may fail or malfunction due to an inrush current flowing through the
servo amplifier's power lines (input lines) at power on. Therefore, use products with the specifications described on the
following page.
Page 329 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. Even when a 1-phase 200 V
AC power supply is used with MR-J5-10_ to MR-J5-200_, the inrush currents of the main circuit power supply will be the
same.
1-axis servo amplifier
Servo amplifier
MR-J5-10_
MR-J5-20_
MR-J5-40_
MR-J5-60_
MR-J5-70_
MR-J5-100_
MR-J5-200_
MR-J5-350_
MR-J5-500_
MR-J5-700_
Multi-axis servo amplifier
Servo amplifier
MR-J5W2-22_
MR-J5W2-44_
MR-J5W2-77_
MR-J5W2-1010_
MR-J5W3-222_
MR-J5W3-444_
400 V class
The following shows the inrush currents (reference data) that will flow when 480 V AC is applied.
Servo amplifier
MR-J5-60_4_
MR-J5-100_4_
MR-J5-200_4_
MR-J5-350_4_
MR-J5-500_4_
MR-J5-700_4_
5 CHARACTERISTICS
252

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

Inrush currents (A )
0-P
Main circuit power supply (L1/L2/L3)
17 A (attenuated to approx. 3 A in 20 ms)
17 A (attenuated to approx. 7 A in 20 ms)
24 A (attenuated to approx. 11 A in 20 ms)
85 A (attenuated to approx. 10 A in 20 ms)
42 A (attenuated to approx. 20 A in 20 ms)
85 A (attenuated to approx. 20 A in 30 ms)
Inrush currents (A )
0-P
Main circuit power supply (L1/L2/L3)
23 A (attenuated to approx. 9 A in 20 ms)
36 A (attenuated to approx. 13 A in 20 ms)
23 A (attenuated to approx. 6 A in 20 ms)
Inrush currents (A )
0-P
Main circuit power supply (L1/L2/L3)
21 A (attenuated to approx. 4 A in 10 ms)
26 A (attenuated to approx. 10 A in 10 ms)
78 A (attenuated to approx. 10 A in 10 ms)
50 A (attenuated to approx. 3 A in 20 ms)
55 A (attenuated to approx. 16 A in 20 ms)
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)
Control circuit power supply (L11/L21)
20 A to 35 A (attenuated to approx. 3 A in 20 ms)
Control circuit power supply (L11/L21)
40 A to 50 A (attenuated to approx. 0 A in 20 ms)
20 A to 30 A (attenuated to approx. 0 A in 3 ms)