Signals And Wiring; Comparison Of Standard Connection Diagrams - Mitsubishi Electric MELSERVO-J2S Series Transition Handbook

Part 5: Review on Replacement of MR-J2S-30 kW or Higher Capacity Models with MR-J4-DU_

2. SIGNALS AND WIRING

2.1 Comparison of Standard Connection Diagrams

WARNING
Note
Insulate the connections of the power supply terminals. Failure to do so may
cause electric shock.
Always connect a magnetic contactor between the main circuit power supply and
L1/L2/L3 of the converter unit in order to configure a power supply shut-off on the
power supply side of the converter unit. If a magnetic contactor is not connected,
continuous flow of a large current may cause a fire when the converter unit or
servo amplifier malfunctions.
Generate a fault signal and shut off the power supply. Not doing so may cause a
fire when a regenerative transistor malfunctions or the like may overheat the
regenerative resistor.
To avoid a malfunction of the servo motor, connect the wires to the correct phase
terminals (U/V/W) of the drive unit and the servo motor.
Do not connect the servo motor directly to the 3-phase 200 V power supply or the
3-phase 400 V power supply. Otherwise a malfunction may be caused.
Do not switch the motor power cables while currents are applied to the motor.
Doing so may cause an abnormal operation or a malfunction.
POINT
When using an external dynamic brake, refer to the Servo Amplifier Instruction
Manual.
5 - 10