
3. SIGNALS AND WIRING
3 - 6
(3) MR-J4-500B
ALM
DICOM
DOCOM
CN3
RA1
L1
L2
L3
L11
L21
P3
C
N-
P+
P4
U
V
W
TE1
TE4
PE
TE3
TE2
U
V
W
CN2
MC
MC
SK
CN3
EM2
DOCOM
CN8
D
TE4
3-phase
200 V AC to
240 V AC
MC
(Note 7)
(Note 5)
24 V DC
Malfunction (Note 4)
Servo amplifier
(Note 1)
(Note 10)
(Note 2)
Servo motor
M
Motor
Encoder
(Note 3)
Encoder
cable
(Note 6)
(Note 4)
Malfunction
RA1
OFF
ON
EMG stop switch
(Note 5) Forced stop 2
(Note 9)
Short-circuit connector
(Packed with the servo amplifier)
(Note 8)
Main circuit power supply
MCCB
Note 1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Always connect P3 and P4 terminals. (factory-wired) When using the power factor improving DC reactor, refer to section
11.1. Use either the power factor improving DC reactor or the power factor improving AC reactor.
Always connect P+ and D. (factory-wired) When using the regenerative option, refer to section 11.2.
For the encoder cable, use of the option cable is recommended. For connecting servo motor power wires, refer to Servo
Motor Instruction Manual (Vol. 3).
If disabling ALM (Malfunction) 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 diagram is for sink I/O interface. For source I/O interface, refer to section 3.8.3.
For connecting servo motor power wires, refer to each Servo Motor Instruction Manual (Vol. 3).
Use a magnetic contactor with an operation delay time (interval between current being applied to the coil until closure of
contacts) of 80 ms or less. Depending on the main circuit voltage and operation pattern, bus voltage decreases, and that
may cause the forced stop deceleration to shift to the dynamic brake deceleration. When dynamic brake deceleration is not
required, slow the time to turn off the magnetic contactor.
Configure up a circuit to turn off EM2 when the main circuit power is turned off to prevent an unexpected restart of the servo
amplifier.
When not using the STO function, attach a short-circuit connector supplied with a servo amplifier.
When wires used for L11 and L21 are thinner than wires used for L1, L2, and L3, use a molded case circuit breaker. (Refer
to section 11.10.)
Comments to this Manuals