sh030051g.pdf - 第373页

13 - 72 13. SERVO AMPLIFIERS WI TH A LARGE CAPACITY ( 30k TO 55kW ) 13.8.4 Inrush currents at po wer-on of main circuit and control circuit The following table ind icates the inrush c urrents (refer ence data) th at will…

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13 - 71
13. SERVO AMPLIFIERS WITH A LARGE CAPACITY
(
30k TO 55kW
)
45
40
35
30
25
20
15
10
5
0
500 1000 15000
2000
HA-LP30K2
HA-LP37K2
Speed [r/min]
Time constant [ms]
45
40
35
30
25
20
15
10
5
0
500 1000 15000
2000
HA-LP45K24
HA-LP55K24
HA-LP37K24
HA-LP30K24
Speed [r/min]
Time constant [ms]
HA-LP2000r/min series
(2) The dynamic brake at the load inertia moment
Use the dynamic brake under the load inertia moment ratio indicated in the following table. If the load inertia
moment is higher than this value, the external dynamic brake may burn. If there is a possibility that the load
inertia moment may exceed the value, contact Mitsubishi.
The values of the load inertia moment ratio in the table are the values at the maximum rotation speed of the
servo motor.
Drive unit
Load inertia moment ratio
[Multiplier (
1)]
MR-J3-DU30KB(4)
MR-J3-DU37KB(4)
10
MR-J3-DU45KB4
MR-J3-DU55KB4
13 - 72
13. SERVO AMPLIFIERS WITH A LARGE CAPACITY
(
30k TO 55kW
)
13.8.4 Inrush currents at power-on of main circuit and control circuit
The following table indicates the inrush currents (reference data) that will flow when the maximum permissible
voltage (200V class: 253VAC, 400V class: 528VAC) is applied at the power supply capacity of 2500kVA and
the wiring length of 1m.
Converter unit Drive unit
Inrush currents (A
0-p)
Main circuit power supply (L
1
, L
2
, L
3
) Control circuit power supply (L
11
, L
21
)
MR-J3-CR55K
MR-J3-DU30KB
163A
(Attenuated to approx. 20A in 180ms)
18A
(Attenuated to approx. 0A in 100ms)
MR-J3-DU37KB
MR-J3-DU30KB4
339A
(Attenuated to approx. 20A in 70ms)
19A
(Attenuated to approx. 0A in 60ms)
MR-J3-CR55K4
MR-J3-DU37KB4
MR-J3-DU45KB4
MR-J3-DU55KB4
Since large inrush currents flow in the power supplies, always use no-fuse breakers and magnetic contactors.
(Refer to section 13.9.5.)
When circuit protectors are used, it is recommended to use the inertia delay type that will not be tripped by an
inrush current.
13.9 Options
WARNING
Before connecting any option or peripheral equipment, turn off the power and wait
for 20 minutes or more until the charge lamp turns off. Then, confirm that the
voltage between L
and L is safe with a voltage tester and others. Otherwise,
an electric shock may occur. In addition, always confirm from the front of the
converter unit whether the charge lamp is off or not.
CAUTION
Use the specified auxiliary equipment and options. Unspecified ones may lead to a
fault or fire.
POINT
Explanations on the following item are the same as those for servo amplifiers
with 22kW or less. Refer to the section below for details.
Cable/connector sets Refer to section 11.1.
Junction terminal block Refer to section 11.7.
MR Configurator Refer to section 11.8.
Battery Refer to section 11.9.
Relays Refer to section 11.15.
Surge absorbers Refer to section 11.16.
Radio noise filter (FR-BIF(-H)) Refer to section 11.17 (2) (e).
13.9.1 Cables and connectors
POINT
Other connectors are the same as those for servo amplifiers with 22kW or
less. Refer to section 11.1.
13 - 73
13. SERVO AMPLIFIERS WITH A LARGE CAPACITY
(
30k TO 55kW
)
(1) Makeup of cables and like
The following shows the cable makeup for connection with the servo motor and other model.
3)
Drive unitConverter unit
4) 5)
6)
Terminal
box
Servo motor
HA-LP
CNP1 CN40
CN1
7)
8)
2)
1)
CN40A
CN40B
CN2
No. Product Model Description Application
1) Protection
coordination
cable
MR-J3CDL
M
Refer to (2) of this
section.
Connector: 10120-3000PE
Shell kit: 10320-52F0-008
(3M or equivalent)
Connector: PCR-S20FS+
Case: PCR-LS20LA1
(Honda Tsushin Kogyo)
2) Connector set MR-J2CN1-A
Refer to (2) of this
section.
Connector: 10120-3000PE
Shell kit: 10320-52F0-008
(3M or equivalent)
Connector: PCR-S20FS+
Shell kit: PCR-LS20LA1
(Honda Tsushin Kogyo)
3) Termination
connector
MR-J3-TM
4) Encoder cable MR-J3ENSCBL M-L
Cable length:
2
5 10 20 30m
IP67
Standard
life
5) Encoder cable MR-J3ENSCBL M-H
Cable length:
2
5 10 20 30
40 50m
For HA-LP series
Refer to section 11.1.2 (4) for details.
IP67
Long flex
life
6) Encoder
connector set
MR-J3SCNS
For HA-LP series
Refer to section 11.1.2 (4) for details.
IP67
7) Magnetic
contactor
wiring
connector
Converter unit side connector
(Phoenix Contact)
Socket: GFKC 2.5/2-STF-7.62
Supplied
with
converter
unit
8) Digital
I/O connector
Converter unit side connector
(DDK)
Connector: 17JE23090-02(D8A)K11-CG