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3. SIGNALS AND WIRING
3 - 5
(2) For 1-phase 200 to 230VAC power supply to MR-J3-20B-RJ080W to MR-J3-70B-RJ080W
DICOM
EM1
L
1
L2
L
3
1-phase
200 to
230VAC
Servo amplifier
ALM
P1
P2
P
DOCOM
L11
L21
N
D
C
U
V
W
(Note 1)
(Note 2)
CNP1
CNP3
PE
CNP2
Direct drive motor
U
V
W
M
Motor
Encoder
CN2
24VDC
Encoder cable
(Note 5)
Malfunction
(Note 3)
DOCOM
(Note 3)
Malfunction
RA1
Controller
forced stop
CN3 CN3
(Note 4)
(Note 4)
Forced stop
(Note 6)
RA1
MC (Note 8)
MCCB
OFF
MC
ON
MC
SK
(Note 6)
Forced stop
RA2
(Note 7)
Note 1. Always connect P1 and P2. (Factory-wired.) When using the power factor improving DC reactor, refer to chapter 11 of the MR-J3-
B Servo Amplifier Instruction Manual. Use either the power factor improving DC reactor or the power factor improving AC reactor.
2. Always connect P and D. (Factory-wired.) When using the regenerative option, refer to chapter 11 of the MR-J3-
B Servo
Amplifier Instruction Manual.
3. If deactivating output of malfunction (ALM) with parameter change, configure up the power supply circuit which switches off the
magnetic contactor after detection of alarm occurrence on the controller side.
4. For sink I/O interface. For source I/O interface, refer to section 3.7.3 of the MR-J3-
B Servo Amplifier Instruction Manual.
5. For details of connection of the servo amplifier and direct drive motor, refer to section 2.5.5.
6. Configure the circuit to shut down the main circuit power supply simultaneously with the turn off of forced stop (EM1) using the
external sequence.
7. This connector detects speed, position and temperature of the direct drive motor. (Refer to chapter 9.)
8. Be sure to use a magnetic contactor with an operation delay time of 80ms or less. The operation delay time is the time interval
between current being applied to the magnetic coil until closure of contacts.