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4. SIGNALS AND WIRING
4.3 Explanation of power supply system
4.3.1 Signal explanations
POINT
For the layout of connector and terminal block, refer to outline drawings in
chapter 10.
Abbreviation
Connection Target
(Application)
Description
Supply the following power to L
1
, L
2
, L
3
. For the 1-phase 200V to 230VAC power supply,
connect the power supply to L
1
, L
2
, and keep L
3
open.
Servo amplifier
Power supply
MR-J3-
10T to
70T
MR-J3-
100T to
22KT
MR-J3-
10T1 to
40T1
3-phase 200V to 230VAC, 50/60Hz
L
1
L
2
L
3
1-phase 200V to 230VAC, 50/60Hz
L
1
L
2
1-phase 100V to 120VAC, 50/60Hz
L
1
L
2
L
1
L
2
L
3
Main circuit power
supply
P
1
P
2
Power factor
improving DC
reactor
1) MR-J3-700T or less
When not using the power factor improving DC reactor, connect P
1
-P
2
. (Factory-wired.)
When using the power factor improving DC reactor, disconnect the wiring across P
1
-P
2
and
connect the power factor improving DC reactor across P
1
-P
2
.
2) MR-J3-11KT to 22KT
MR-J3-11KT to 22KT do not have P
2
terminal.
When not using the power factor improving reactor, connect P
1
-P. (Factory-wired)
When using the power factor improving reactor, connect it across P-P
1
.
Refer to section 14.11.
P
C
D
Regenerative
option
1) MR-J3-350T 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-J3-500T 700T
MR-J3-500T and 700T 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-J3-11KT to 22KT
MR-J3-11KT to 22KT 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 14.2 to 14.5.
Supply the following power to L
11
L
21.
Servo amplifier
Power supply
MR-J3-10T
to 22KT
MR-J3-10T1
to 40T1
1-phase 200V to 230VAC, 50/60Hz
L
11
L
21
1-phase 100V to 120VAC, 50/60Hz
L
11
L
21
L
11
L
21
Control circuit
power supply
U
V
W
Servo motor
power
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.
N
Return converter
Brake unit
When using return converter/brake unit, connect to P terminal and N terminal.
Do not connect to servo amplifier MR-J3-350T or less.
For details, refer to section 14.3 to 14.5.
Protective earth
(PE)
Connect to the earth terminal of the servo motor and to the protective earth (PE) of the control
box to perform grounding.
Summary of Contents for MELSERVO MR-J3-xT
Page 22: ...8 MEMO ...
Page 156: ...4 46 4 SIGNALS AND WIRING MEMO ...
Page 276: ...7 26 7 MR Configurator MEMO ...
Page 324: ...10 16 10 SPECIAL ADJUSTMENT FUNCTIONS MEMO ...
Page 418: ...14 66 14 OPTIONS AND AUXILIARY EQUIPMENT MEMO ...