10 - 10
10. CHARACTERISTICS
10.4 Cable flexing life
The flexing life of the cables is shown bel ow. This graph calculated values. Since they are not guaranteed
values, provide a little allowance for thes e values.
1 107
5 107
1 108
5 106
1 106
5 105
1 105
5 104
1 104
5 103
1 103
a
b
Flexing life [times]
4 7 10 20 40 70 100 200
Flexing radius [mm]
a : Long flex life encoder cable
Long flex life motor power cable
Long flex life motor brake cable
SSCNET cable using long distance cable
b : Standard encoder cable
Standard motor power cable
Standard motor brake cable
SSCNET cable using inside panel standard cord
SSCNET cable using outside panel standard cable
10.5 Inrush currents at power-on of main circuit and control circuit
The following table indicates the inrush curren ts (reference data) that will flow when the maximum permiss ible
voltage (200V class: 253VAC, 400V class: 528VAC) is applied at the power supply capacity of 2500kVA and
the wiring length of 1m (3.28ft).
Inrush currents (A0-p)
Servo amplifier Main circuit power supply (L1, L2, L3) Control circuit power supply (L11, L21)
MR-J3-10B1 to 40B1 38A (Attenuated to approx. 14A in 10ms)
MR-J3-10B to 60B 30A (Attenuated to approx. 5A in 10ms)
MR-J3-70B 100B 54A (Attenuated to approx. 12A in 10ms)
MR-J3-200B 350B 120A (Attenuated to approx. 12A in 20ms)
20 to 30A
(Attenuated to approx. 0A in 1 to 2ms)
MR-J3-500B 44A (Attenuated to approx. 20A in 20ms)
MR-J3-700B 88A (Attenuated to approx. 20A in 20ms)
MR-J3-11KB
MR-J3-15KB
MR-J3-22KB
235A (Attenuated to approx. 20A in 20ms)
30A (Attenuated to approx. 0A in 3ms)
MR-J3-60B4 100B4 100A (Attenuated to approx. 5A in 10ms)
MR-J3-200B4 120A (Attenuated to approx. 12A in 20ms)
40 to 50A
(Attenuated to approx. 0A in 2ms)
MR-J3-350B4 500B4 66A (Attenuated to approx. 10A in 20ms)
MR-J3-700B4 67A (Attenuated to approx. 34A in 20ms) 41A (Attenuated to approx. 0A in 3ms)
MR-J3-11KB4
MR-J3-15KB4
MR-J3-22KB4
325A (Attenuated to approx. 20A in 20ms) 45A (Attenuated to approx. 0A in 3ms)
Since large inrush currents flow in the pow er supplies, always use no-fuse breakers and magnetic c ontactors.
(Refer to section 11.12.)
When circuit protectors are used, it is recommended to us e the inertia delay type that will not be tripped by an
inrush current.