10. CHARACTERISTICS
10 - 14
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-J4-10B(-RJ) to MR-J4-200B(-RJ), 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/L3)
Control circuit power supply (L11/L21)
MR-J4-10B(-RJ)
MR-J4-20B(-RJ)
MR-J4-40B(-RJ)
MR-J4-60B(-RJ)
30 A (attenuated to approx. 3 A in 20 ms)
20 A to 30 A
(attenuated to approx. 1 A in 20 ms)
MR-J4-70B(-RJ)
MR-J4-100B(-RJ)
34 A (attenuated to approx. 7 A in 20 ms)
MR-J4-200B(-RJ)
MR-J4-350B(-RJ)
113 A (attenuated to approx. 12 A in 20 ms)
MR-J4-500B(-RJ)
42 A (attenuated to approx. 20 A in 20 ms)
34 A
(attenuated to approx. 2 A in 20 ms)
MR-J4-700B(-RJ)
85 A (attenuated to approx. 20 A in 30 ms)
MR-J4-11KB(-RJ)
226 A (attenuated to approx. 30 A in 30 ms)
42 A
(attenuated to approx. 2 A in 30 ms)
MR-J4-15KB(-RJ)
226 A (attenuated to approx. 50 A in 30 ms)
MR-J4-22KB(-RJ)
226 A (attenuated to approx. 70 A in 30 ms)
(2) 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 of 2500 kVA and the wiring length of 1 m.
Servo amplifier
Inrush currents (A
0-P
)
Main circuit power supply (L1/L2/L3)
Control circuit power supply (L11/L21)
MR-J4-60B4(-RJ)
MR-J4-100B4(-RJ)
65 A
(attenuated to approx. 5 A in 10 ms)
40 A to 50 A
(attenuated to approx. 0 A in 2 ms)
MR-J4-200B4(-RJ)
80 A
(attenuated to approx. 5 A in 10 ms)
MR-J4-350B4(-RJ)
100 A
(attenuated to approx. 20 A in 10 ms)
MR-J4-500B4(-RJ)
65 A
(attenuated to approx. 9 A in 20 ms)
41 A
(attenuated to approx. 0 A in 3 ms)
MR-J4-700B4(-RJ)
68 A
(attenuated to approx. 34 A in 20 ms)
MR-J4-11KB4(-RJ)
339 A
(attenuated to approx. 10 A in 30 ms)
38 A
(attenuated to approx. 1 A in 30 ms)
MR-J4-15KB4(-RJ)
339 A
(attenuated to approx. 15 A in 30 ms)
MR-J4-22KB4(-RJ)
339 A
(attenuated to approx. 20 A in 30 ms)
Summary of Contents for MR-J4-100B(-RJ)
Page 17: ...8 MEMO ...
Page 143: ...4 STARTUP 4 20 MEMO ...
Page 199: ...5 PARAMETERS 5 56 MEMO ...
Page 227: ...6 NORMAL GAIN ADJUSTMENT 6 28 MEMO ...
Page 281: ...8 TROUBLESHOOTING 8 16 MEMO ...
Page 303: ...9 DIMENSIONS 9 22 MEMO ...
Page 319: ...10 CHARACTERISTICS 10 16 MEMO ...
Page 429: ...11 OPTIONS AND PERIPHERAL EQUIPMENT 11 110 MEMO ...
Page 435: ...12 ABSOLUTE POSITION DETECTION SYSTEM 12 6 MEMO ...
Page 483: ...14 USING A LINEAR SERVO MOTOR 14 34 MEMO ...
Page 531: ...16 FULLY CLOSED LOOP SYSTEM 16 26 MEMO ...
Page 613: ...17 APPLICATION OF FUNCTIONS 17 82 MEMO ...
Page 654: ...APPENDIX App 41 ...