Input Power Supply Circuit - Mitsubishi Electric MELSERVO-J3 Series Manual

4. SIGNALS AND WIRING

4.1 Input power supply circuit

CAUTION
Wire the power supply and main circuit as shown below so that the servo-on (RYn0) turns off as soon as alarm
occurrence is detected and power is shut off.
A no-fuse breaker (NFB) must be used with the input cables of the power supply.
(1) For 3-phase 200 to 230VAC power supply to MR-J3-10T to MR-J3-350T
NFB
3-phase
200 to
230VAC
(Note 4)
Note 1. Always connect P and P
1
2. Always connect P( ) and D. (Factory-wired.) When using the regenerative option, refer to section 14.2.
3. For encoder cable, use of the option cable is recommended. Refer to section 14.1 for selection of the cable.
4. For the sink I/O interface. For the source I/O interface, refer to section 4.8.3.
5. Refer to section 4.10.
Always connect a magnetic contactor (MC) between the main circuit power supply
and L L and L of the servo amplifier, and configure the wiring to be able to shut
, ,
1 2 3
down the power supply on the side of the servo amplifier's power supply. If a
magnetic contactor (MC) is not connected, continuous flow of a large current may
cause a fire when the servo amplifier malfunctions.
Use the trouble (ALM) to switch power off. Otherwise, a regenerative transistor
fault or the like may overheat the regenerative resistor, causing a fire.
Forced
stop
RA
MC
(Note 1)
(Note 2)
Forced stop
. (Factory-wired.) When using the power factor improving DC reactor, refer to section 14.11.
2
ON
OFF
MC
MC
SK
Servo amplifier
CNP1
L
1
CNP3
L U
2
L V
3
N( ) W
P
1
P
2
PE
CNP2
P( )
C
D
CN2
L
11
L
21
CN6 CN6
EMG
DOCOM
DOCOM
DICOM
ALM
4 - 2
Servo motor
(Note 5)
U 2
Motor
V 3
W 4
1
(Note 3)
Encoder
Encoder cable
24VDC
RA Trouble
M
(Note 4)