3 - 12
3. SIGNALS AND WIRING
3.3 Explanation of power supply system
3.3.1 Signal explanations
POINT
For the layout of connector and terminal block, refer to outline drawings in
chapter 9.
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-
10B to 70B
MR-J3-
100B to
22KB
MR-J3-
10B1 to
40B1
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
Servo amplifier
Power supply
MR-J3-60B4 to 22KB4
3-phase 380V to 480VAC, 50/60Hz
L
1
L
2
L
3
L
1
L
2
L
3
Main circuit power
supply
P
1
P
2
Power factor
improving DC
reactor
1) MR-J3-700B(4) 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-J3-11KB(4) to 22KB(4)
MR-J3-11KB(4) to 22KB(4) 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
1
-P.
Refer to section 11.13.
P
C
D
Regenerative
option
1) MR-J3-350B or less MR-J3-200B4 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-J3-350B4 500B(4) 700B(4)
MR-J3-350B4 500B(4) and 700B(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-J3-11KB(4) to 22KB(4)
MR-J3-11KB(4) to 22KB(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 14.2 to 14.5.
Supply the following power to L
11
L
21
.
Servo amplifier
Power supply
MR-J3-10B to
22KB
MR-J3-10B1 to
40B1
MR-J3-60B4 to
22KB4
1-phase 200V to 230VAC, 50/60Hz
L
11
L
21
1-phase 100V to 120VAC, 50/60Hz
L
11
L
21
1-phase 380V to 480VAC, 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-J3-350B(4) or less.
For details, refer to section 11.3 to 11.5.
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- 350B4
Page 15: ...A 14 MEMO ...
Page 21: ...6 MEMO ...
Page 107: ...3 52 3 SIGNALS AND WIRING MEMO ...
Page 171: ...7 16 7 SPECIAL ADJUSTMENT FUNCTIONS MEMO ...
Page 181: ...8 10 8 TROUBLESHOOTING MEMO ...
Page 193: ...9 12 9 OUTLINE DRAWINGS MEMO ...
Page 297: ...12 6 12 ABSOLUTE POSITION DETECTION SYSTEM MEMO ...
Page 397: ...13 100 13 SERVO AMPLIFIERS WITH A LARGE CAPACITY 30k TO 55kW MEMO ...