Signals And Wiring; Comparison Of Standard Connection Diagrams; When Magnetic Contactor Drive Output Is Enabled (Factory Setting) - Mitsubishi Electric MELSERVO-J3 Series Handbook

Part 5: Review on Replacement of MR-J3-DU_ with MR-J4-DU_

4. SIGNALS AND WIRING

4.1 Comparison of standard connection diagrams

WARNING
CAUTION

4.1.1 When magnetic contactor drive output is enabled (factory setting)

Insulate the connections of the power supply terminals. Otherwise, an electric
shock may occur.
Be sure to connect a magnetic contactor between the power supply and the main
circuit power supply (L1/L2/L3) of the power regeneration converter unit, in order
to configure a circuit that shuts off the power supply by the magnetic contactor. If
the magnetic contactor is not connected, a large current keeps flowing and may
cause a fire when the power regeneration converter unit or the drive unit
malfunctions.
Use ALM (Malfunction) to shut the power off. Not doing so may cause a fire when
the power regeneration converter unit malfunctions and causes the AC reactor to
overheat.
Connect the wires to the correct phase terminals (U/V/W) of the servo amplifier and
servo motor. Not doing so may cause unexpected operation.
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.
During power-on, do not open or close the motor power line. Otherwise, a
malfunction or faulty may occur.
POINT
When using an external dynamic brake, refer to the Servo Amplifier Instruction
Manual.
POINT
The converter unit controls the magnetic contactor.
Connect the converter unit and the drive unit with MR-J3CDL05M protection
coordination cable. (For MR-J3-DU_, always connect a terminal connector (MR-
J3-TM) as well.)
Always turn on or off the control circuit power supplies of the converter unit and
the drive unit simultaneously.
5 - 11