Explanation Of Power Supply System; Signal Explanations - Mitsubishi Electric Melservo MR-J3-A Instruction Manual

3. SIGNALS AND WIRING

3.3 Explanation of power supply system

3.3.1 Signal explanations

Connection Target
Abbreviation
(Application)
L
1
Main circuit power
L
2
supply
L
3
Power factor
P
1
improving DC
P
2
reactor
P
Regenerative
C
option
D
L Control circuit
11
L power supply
21
U
Servo motor
V
power
W
Return converter
N
Brake unit
Protective
(PE)
POINT
For the layout of connector and terminal block, refer to outline drawings in
chapter 10.
Supply the following power to L
connect the power supply to L
Power supply
3-phase 200V to 230VAC, 50/60Hz
1-phase 200V to 230VAC, 50/60Hz
1-phase 100V to 120VAC, 50/60Hz
Power supply
3-phase 380V to 480VAC, 50/60Hz
1) MR-J3-700A or less
When not using the power factor improving DC reactor, connect P
When using the power factor improving DC reactor, disconnect the wiring across P
connect the power factor improving DC reactor across P
2) MR-J3-11KA(4) to 22KA(4)
MR-J3-11KA(4) to 22KA(4) do not have P
When not using the power factor improving reactor, connect P
When using the power factor improving reactor, connect it across P-P
Refer to section 12.13.
1) MR-J3-350A or less MR-J3-200A4 or less
When using servo amplifier built-in regenerative resistor, connect between P-D terminals.
(Wired by default)
When using regenerative option, disconnect between P-D terminals and connect
regenerative option to P terminal and C terminal.
2) MR-J3-350A4 500A(4) 700A(4)
MR-J3-350A4 500A(4) 700A(4) do not have D terminal.
When using servo amplifier built-in regenerative resistor, connect P terminal and C terminal.
(Wired by default)
When using regenerative option, disconnect P terminal and C terminal and connect
regenerative option to P terminal and C terminal.
3) MR-J3-11KA(4) to 22KA(4)
MR-J3-11KA(4) to 22KA(4) do not have D terminal.
When not using the power supply return converter and the brake unit, make sure to connect
the regenerative option to P terminal and C terminal.
Refer to section 12.2 to 12.5.
Supply the following power to L
Power supply
1-phase 200V to 230VAC, 50/60Hz
1-phase 100V to 120VAC, 50/60Hz
1-phase 380V to 480VAC, 50/60Hz
Connect to the servo motor power supply terminals (U, V, W). During power-on, do not open or
close the motor power line. Otherwise, a malfunction or faulty may occur.
When using return converter/brake unit, connect to P terminal and N terminal.
Do not connect to servo amplifier MR-J3-350A or less.
For details, refer to section 12.3 to 12.5.
earth Connect to the earth terminal of the servo motor and to the protective earth (PE) of the control
box to perform grounding.
Description
, L , L . For the 1-phase 200V to 230VAC power supply,
1 2 3
, L , and keep L open.
1 2 3
Servo amplifier
Servo amplifier
terminal.
2
L
11 21.
Servo amplifier MR-J3-10A
to 22KA
L
11
3 - 14
MR-J3- MR-J3-
10A to 100A to
70A 22KA
L L L
1 2 3
L L
1 2
MR-J3-60A4 to 22KA4
L L L
1 2 3
-P . (Factory-wired.)
1 2
-P .
1 2
-P. (Factory-wired)
1
.
1
MR-J3-10A1 MR-J3-60A4
to 40A1 to 22KA4
L
21
L L
11 21
L
MR-J3-
10A1 to
40A1
L L
1 2
-P and
1 2
L
11 21