Terminals - Mitsubishi Electric MELSERVO MR-J2S- A Instruction Manual

3. SIGNALS AND WIRING

3.7.2 Terminals

The positions and signal arrangements of the terminal blocks change with the capacity of the servo
amplifier. Refer to Section 11.1.
Connection Target
Symbol
(Application)
L , L , L Main circuit power supply
1 2 3
U, V, W Servo motor output
L , L Control circuit power supply
11 21
P, C, D Regenerative brake option
Return converter
N
Brake unit
Protective earth (PE)
Supply L , L and L with the following power:
1 2 3
For 1-phase 230VAC, connect the power supply to L
Servo amplifier
Power supply
3-phase 200 to 230VAC,
50/60Hz
1-phase 230VAC,
50/60Hz
1-phase 100 to 120VAC,
50/60Hz
Connect to the servo motor power supply terminals (U, V, W).
Supply L and L with the following power.
11 12
Servo amplifier
Power supply
1-phase 200 to 230VAC,
50/60Hz
1-phase 100 to 120VAC,
50/60Hz
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 option, always 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.
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.
Connect this terminal to the protective earth (PE) terminals of the servo motor
and control box for grounding.
3 - 48
Description
/L and leave L
1 2
MR-J2S-10A to MR-J2S-100A
70A to 22kA
L L L
1 2 3
L L
1 2
MR-J2S-10A to 700A MR-J2S-10A1 to 40A1
L L
11 21
open.
3
MR-J2S-10A1
to 40A1
L L
1 2
L L
11 21