Mitsubishi Electric MELSERVO-J3W Series Instruction Manual page 342

14. USING A DIRECT DRIVE MOTOR
(2) Connection example
MCCB
(Note 9)
Power
supply
(Note 6) Forced stop
(Note 4)
Note 1. Always connect between P
2. Fabricate the encoder cables according to 14.8.1. When you use the cables for the absolute position detection system, absolute
position units are required.
3. If disabling malfunction (ALM-A/ALM-B) output with the parameter, configure up the power supply circuit which switches off the
magnetic contactor after detection of alarm occurrence on the controller side. This example is to continue the operation in another
axis even if an alarm occurs either A-axis or B-axis. When stopping operation of both axes at an alarm occurrence for one axis,
connect RA1 and RA2 in series.
4. This is for sink I/O interface. For source I/O interface, refer to section 3.7.3.
5. Refer to section 14.2 for wiring power lines.
6. Configure up the circuit which shuts off main circuit power with external circuit at forced stop 1 (EM1) off.
7. This connection example is for using a direct drive motor. Turn on SW3.
(Refer to section 3.14.)
8. Use a magnetic contactor with an operation delay time (interval between current being applied to the coil until closure of contacts) of
80ms or less.
9. For 1-phase 200VAC to 230VAC, connect the power supply to L1 and L2. Leave L3 open. Refer to section 1.3 for the power supply
specification.
10. Connecting a servo motor for different axis to the CNP3A or CNP3B connector may cause a malfunction.
(Note 3)
Malfunction
Controller
forced stop
RA1(A-axis)
RA3
RA2(B-axis)
Forced stop
(Note 6)
Servo amplifier
(Note 8)
CNP1
MC
L
1
L
2
L
3
CNP2
P
(Note 1)
C
D
L
11
L
21
CN3
EM1
DOCOM
SW3 (Note 7)
ON
and D terminals. When using the regenerative option, refer to section 11.2.
OFF
ON
MC
MC
SK
(Note 10)
CNP3A
(Note 5)
U
V
W
(Note 2)
CN2A
Encoder cable
PE( )
(Note 10)
CNP3B
(Note 5)
U
V
W
(Note 2)
CN2B
Encoder cable
CN3
24VDC
DOCOM
DICOM
ALM-A
RA1
ALM-B
A-axis RA2
B-axis
14 - 9
A-axis direct drive motor
U
Motor
V
M
W
Encoder
B-axis direct drive motor
U
Motor
V
M
W
Encoder
(Note 4)
A-axis malfunction
(Note 3)
B-axis malfunction
(Note 3)