Mitsubishi Electric MR-J4 TM Series, Instruction Manual

Page: 326 / 594

10. CHARACTERISTICS
10 - 13
10.5 Inrush currents at power-on of main circuit and control circuit
POINT
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. (Refer to section 11.10.)
When circuit protectors are used, it is recommended that the inertia delay type, which is not tripped by an
inrush current, be used.
(1) 200 V class
The following shows the inrush currents (reference data) that will flow when 240 V AC servo amplifier) is
applied at the power supply capacity of 2500 kVA and the wiring length of 1 m. Even when you use a 1-
phase 200 V AC power supply with MR-J4-10TM to MR-J4-200TM, the inrush currents of the main
circuit power supply is the same.
Servo amplifier
Inrush currents (A
0-P
)
Main circuit power supply (L1, L2, and L3) Control circuit power supply (L11 and L21)
MR-J4-10TM
MR-J4-20TM
MR-J4-40TM
MR-J4-60TM
30 A (attenuated to approx. 3 A in 20 ms)
20 A to 30 A
(attenuated to approx. 1 A in 20 ms) MR-J4-70TM
MR-J4-100TM
34 A (attenuated to approx. 7 A in 20 ms)
MR-J4-200TM
MR-J4-350TM
113 A (attenuated to approx. 12 A in 20 ms)
MR-J4-500TM 42 A (attenuated to approx. 20 A in 20 ms)
34 A
(attenuated to approx. 2 A in 20 ms)
MR-J4-700TM 85 A (attenuated to approx. 20 A in 30 ms)
MR-J4-11KTM 226 A (attenuated to approx. 30 A in 30 ms)
42 A
(attenuated to approx. 2 A in 30 ms)
MR-J4-15KTM 226 A (attenuated to approx. 50 A in 30 ms)
MR-J4-22KTM 226 A (attenuated to approx. 70 A in 30 ms)