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3. SIGNALS AND WIRING
3.5.2 TerminalsThe positions and signal arrangements of the terminal blocks change with the capacity of the servoamplifier. Refer to Section 10.1.
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-10B to
70B
MR-J2S-100B
to 700B
MR-J2S-10B1
to 40B1
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 the following power to L11, L21.
Servo amplifier
Power supply MR-J2S-10B to 700B MR-J2S-10B1 to 40B1
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-350B or less
Wiring is factory-connected across P-D (servo amplifier built-in regenerative
brake resistor).
When using the regenerative brake option, always remove the wiring from
across P-D and connect the regenerative brake option across P-C.
2) MR-J2S-500B MR-J2S-700B
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 12.1.1 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-350B or less.
Refer to Sections 12.1.2 and 12.1.3 for details.
Protective earth (PE) Connect this terminal to the protective earth (PE) terminals of the servo motor
and control box for grounding.