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3. SIGNALS AND WIRING
3.7.2 TerminalsThe positions and signal arrangements of the terminal blocks change with the capacity of the servoamplifier. Refer to Section 11.1.
Symbol Connection Target
(Application) Description
Supply L1, L2 and L3 with the following power:
For 1-phase 230VAC, connect the power supply to L1/L2 and leave L3 open.
Servo amplifier
Power supply
MR-J2S-10A to
70A
MR-J2S-100A
to 22kA
MR-J2S-10A1
to 40A1
3-phase 200 to 230VAC,
50/60Hz L1L2L3
1-phase 230VAC,
50/60Hz L1L2
1-phase 100 to 120VAC,
50/60Hz L1L2
L1, L2, L3Main circuit power supply
U, V, W Servo motor output Connect to the servo motor power supply terminals (U, V, W).
Supply L11 and L12 with the following power.
Servo amplifier
Power supply MR-J2S-10A to 700A MR-J2S-10A1 to 40A1
1-phase 200 to 230VAC,
50/60Hz L11 L21
1-phase 100 to 120VAC,
50/60Hz L11 L21
L11, L21 Control circuit power supply
P, C, D Regenerative brake option
1) MR-J2S-350A or less
Wiring is factory-connected across P-D (servo amplifier built-in regenerative
brake resistor).
When using the regenerative brake opti on , al wa y s remove the wiring from
across P-D and connect the regenerative brake option across P-C.
2) MR-J2S-500A 700A
Wiring is factory-connected across P-C (servo amplifier built-in regenerative
brake resistor).
When using the regenerative brake option, always remove the wiring from
across P-C and connect the regenerative brake option across P-C.
Refer to Section 13.1.1 for details.
NReturn converter
Brake unit
When using the return converter or brake unit, connect it across P-N.
Do not connect it to the servo amplifier of MR-J2S-350A or less.
Refer to Sections 13.1.2 and 13.1.3 for details.
Protective earth (PE) Connect this terminal to the protective earth (PE) terminals of the servo motor
and control box for grounding.