Mitsubishi Electric MELSERVO-J5 MR-J5-G Series, User Manual

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3 SIGNALS AND WIRING
3.1 Example power circuit connections
400 V class
For 3-phase 380 V AC to 480 V AC power supply [G] [A]
*1 P3 and P4 are connected from the factory. If using a power factor improving DC reactor, remove the short-circuit bar between P3 and
P4, then connect the power factor improving DC reactor. Additionally, the power factor improving DC reactor and a power factor
improving AC reactor cannot be used together.

Page 231 Power factor improving DC reactor
*2 Connect P+ and D terminals. P+ and D are connected from the factory. If using a regenerative option, refer to the following.

Page 177 Regenerative option
*3 Option cables are recommended for servo motor power cables and encoder cables. For selecting cables, refer to "Cable/connector sets"
in the following manual.

Rotary Servo Motor User's Manual (HK series)
*4 If ALM (Malfunction) output is disabled with a servo parameter, configure a power circuit which switches off a magnetic contactor after
detection of an alarm occurrence on the controller side.
*5 For connecting servo motor power wires, refer to "CONNECTION OF SERVO AMPLIFIER AND ROTARY SERVO MOTOR" in the
following manual.

Rotary Servo Motor User's Manual (HK series)
*6 Use the magnetic contactor with an operation delay time (interval between current being applied to the coil until closure of contacts) of
80 ms or less. The bus voltage may drop depending on the main circuit power supply voltage and operation pattern, causing a dynamic
brake deceleration during a forced stop deceleration. If dynamic brake deceleration is not required, delay the time to turn off the
magnetic contactor.
*7 If wires used for L11 and L21 are thinner than wires used for L1, L2, and L3, use a molded-case circuit breaker.

Page 219 Molded-case circuit breakers, fuses, magnetic contactors
*8 Connecting the servo motor for an incorrect axis to U, V, W, or CN2 of the servo amplifier may cause a malfunction.
*9 If operating the on switch and off switch of the main circuit power supply with a DC power supply, do not share the 24 V DC power
supply for interface with the magnetic contactor. Use the power supply designed exclusively for the magnetic contactor. Refer to the
following for the magnetic contactors that can be used.

Page 225 Driving on/off of main circuit power supply with DC power supply [G] [A]
Operating the on switch and off switch with the DC power supply meets IEC/EN 60204-1 requirements. Also, change the configuration of
the part inside the dotted line as follows.
P3
P4
P+
L11
L21
L1
L2
L3
N-
D
C
U
V
W
CNP1
CNP3
*8
CNP2
U
V
E
W
CN2
*8
MC
MCCB
MC
*6
MC
SK
M
RA1
*5 *3
*7
*2
*1
*9
Malfunction
*4
OFF
ON
Emergency stop switch
Servo amplifier Servo motor
3-phase
380 V AC to
480 V AC
Motor
Encoder
MC
MC
SK
RA1
24 V DC
Malfunction
OFF
ON
Emergency stop switch