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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 12.
Abbreviation
Connection target
(Application)
Description
L
1
L
2
L
3
Main circuit power
supply
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
Servo amplifier
Power supply
MR-J3-
60T4 to
22KT4
3-phase 380V to 480VAC, 50/60Hz
L
1
L
2
L
3
P
1
P
2
Power factor
improving DC
reactor
1) MR-J3-700T(4) or less
When not using the power factor improving DC reactor, connect P
1
and P
2
. (Factory-wired.)
When using the power factor improving DC reactor, disconnect P
1
and P
2
, and connect the
power factor improving DC reactor to P
1
and P
2
.
2) MR-J3-11KT(4) to 22KT(4)
MR-J3-11KT(4) to 22KT(4) do not have P
2
.
When not using the power factor improving reactor, connect P
1
and P. (Factory-wired)
When using the power factor improving reactor, connect it to P
1
and P.
Refer to section 14.11.
P
C
D
Regenerative
option
1) MR-J3-350T or less MR-J3-200T4 or less
When using servo amplifier built-in regenerative resistor, connect P( ) and D. (Factory-wired)
When using regenerative option, disconnect P( ) and D, and connect regenerative option to
P and C.
2) MR-J3-350T4 500T(4) 700T(4)
MR-J3-350T4 500T(4) and 700T(4) do not have D.
When using servo amplifier built-in regenerative resistor, connect P and C. (Factory-wired)
When using regenerative option, disconnect P and C, and connect regenerative option to P
and C.
3) MR-J3-11KT(4) to 22KT(4)
MR-J3-11KT(4) to 22KT(4) do not have D.
When not using the power regenerative converter and the brake unit, make sure to connect
the regenerative option to P and C.
Refer to section 14.2 to 14.5.
L
11
L
21
Control circuit
power supply
Supply the following power to L
11
L
21.
Servo amplifier
Power supply
MR-J3-
10T to
22KT
MR-J3-
10T1 to
40T1
MR-J3-
60T4 to
22KT4
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
U
V
W
Servo motor power
output
Connect to the servo motor power supply terminals (U, V, W). Connect the servo amplifier power
output (U, V and W) to the servo motor power input (U, V and W) directly. Do not let a magnetic
contactor, etc. intervene. Otherwise, a malfunction or fault may occur.
N
Regenerative
converter
Brake unit
When using the power regenerative converter/brake unit, connect it to P and N.
Do not connect to servo amplifier MR-J3-350T(4) 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.
Содержание Melservo-J3 Series MR-J3-B
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