Mitsubishi Electric EZMOTION MR-E Super MR-E-70A-QW003 - Encoder Cable Flexing Life; Inrush Currents at Power-On of Main Circuit and Control Circuit

12 - 4
12. CHARACTERISTICS
12.4 Encoder cable flexing life
The flexing life of the cables is shown below. This graph calculated values. Since they are not guaranteed
values, provide a little allowance for these values.
1 10
7
5 10
7
1 10
8
5 10
6
1 10
6
5 10
5
1 10
5
5 10
4
1 10
4
5 10
3
1 10
3
a
b
F
l
e
x
i
n
g
l
i
f
e
[
t
i
m
e
s
]
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
b : Standard encoder cable
Standard motor power cable
Standard motor brake cable
12.5 Inrush currents at power-on of main circuit and control circuit
The following table indicates the inrush currents (reference value) that will flow when the maximum permissible
voltage (253VAC) is applied at the power supply capacity of 2500kVA and the wiring length of 1m.
Inrush currents (A
0-p
)
Servo amplifier
Main circuit power supply (L
1
, L
2
, L
3
)
MR-E-10A-QW003
MR-E-20A-QW003
MR-E-40A-QW003
50A (Attenuated to approx. 10A in 10ms)
MR-E-70A-QW003
MR-E-100A-QW003
70A (Attenuated to approx. 20A in 10ms)
MR-E-200A-QW003 110A (Attenuated to approx. 20A in 10ms)
Since large inrush currents flow in the power supplies, always use circuit breakers and magnetic contactors.
(Refer to section 13.2.2.)
When circuit protectors are used, it is recommended to use the inertia delay type that will not be tripped by an
inrush current.
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