Input Power Supply Circuit - Mitsubishi Electric MELSERVO MR-J4-B-LL Series Instruction Manual

2. SIGNALS AND WIRING
CAUTION
The following items are the same as those for MR-J4-_B_. Refer to the section of the detailed explanation
field for details.
"MR-J4-_B_" means "MR-J4-_B_(-RJ) Servo Amplifier Instruction Manual".
"MR-J4-_DU_" means "MR-J4-DU_(-RJ)/MR-CR55K_ Servo Amplifier Instruction Manual".

2.1 Input power supply circuit

CAUTION
Configure the wiring so that the main circuit power supply is shut off and the servo-on command is turned off
after deceleration to a stop due to an alarm occurrence, an enabled servo forced stop, or an enabled
controller forced stop. A molded-case circuit breaker (MCCB) must be used with the input cables of the main
circuit power supply.
ALM (Malfunction) is not assigned by default. Create a circuit that shuts off the main circuit by being
interlocked with an alarm detected by the controller. When assigning ALM (Malfunction) to the CN3-9 pin, set
[Pr. PD08] to "0003".
Connect the servo amplifier power outputs (U, V, and W) to the servo motor
power inputs (U, V, and W) directly. Do not connect a magnetic contactor and
others between them.
Servo amplifier
U
V
W
Explanation of power supply system
Forced stop deceleration function
Alarm occurrence timing chart
SSCNET III cable connection
Servo motor with an electromagnetic brake
Grounding
ALM (Malfunction) is not assigned by default. Create a circuit that shuts off the
main circuit by being interlocked with an alarm detected by the controller.
POINT
When assigning ALM (Malfunction) to the CN3-9 pin, set [Pr. PD08] to "0003".
Items not mentioned in this section are the same as those for MR-J4-_B_ servo
amplifier. Refer to section 3.1 of "MR-J4-_B_(-RJ) Servo Amplifier Instruction
Manual" and "MR-J4-DU_(-RJ)/MR-CR55K_ Instruction Manual".
Servo motor
Servo amplifier
U
V
M
W
Item
2 - 2
Servo motor
U
U
V
V
M
W
W
Detailed explanation
MR-J4-_B_ section 3.3
MR-J4-_DU_ section 3.2
MR-J4-_B_ section 3.6
MR-J4-_B_ section 3.7
MR-J4-_DU_ section 3.5
MR-J4-_B_ section 3.9
MR-J4-_B_ section 3.10
MR-J4-_B_ section 3.11
MR-J4-_DU_ section 3.7