Part 5: Review on Replacement of MR-J3-DU_ with MR-J4-DU_
5 - 11
4. SIGNALS AND WIRING
4.1 Comparison of standard connection diagrams
WARNING
Insulate the connections of the power supply terminals. Otherwise, an electric
shock may occur.
CAUTION
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.
4.1.1 When magnetic contactor drive output is enabled (factory setting)
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.
POINT
When using an external dynamic brake, refer to the Servo Amplifier Instruction
Manual.
Summary of Contents for Melservo MR-J3-100B
Page 17: ...8 MEMO ...
Page 18: ...Part 1 Summary of MR J3 MR J3W Replacement 1 1 Part 1 Summary of MR J3 MR J3W Replacement ...
Page 145: ...Part 3 Review on Replacement of MR J3 _B_ with MR J4 _B_ 3 48 MEMO ...
Page 195: ...Part 4 Replacement of MR J3W _B with MR J4W2 _B 4 50 MEMO ...
Page 277: ...Part 5 Review on Replacement of MR J3 DU_ with MR J4 DU_ 5 82 MEMO ...
Page 278: ...Part 6 Common Reference Material 6 1 Part 6 Common Reference Material ...
Page 418: ...Part 7 Review on Replacement of Motor 7 1 Part 7 Review on Replacement of Motor ...
Page 564: ...Part 9 Startup Procedure Manual 9 1 Part 9 Startup Procedure Manual ...
Page 567: ...Part 9 Startup Procedure Manual 9 4 MEMO ...
Page 589: ...L NA 03127ENG C ...