Mitsubishi Electric MR-J4 Instruction Manual page 659

18. MR-J4-03A6 SERVO AMPLIFIER
Configure the wirings so that the main circuit power supply is shut off and SON (Servo-on) is turned off after
deceleration to a stop due to an alarm occurring, enabled servo forced stop, etc.
48 V DC main circuit power supply
24 V DC
(Note 1)
48 V DC
(Note 1)
24 V DC main circuit power supply
24 V DC
(Note 1)
Forced stop 2
(Note 3)
Servo-on
Note 1. Use reinforced insulating type for 24 V DC and 48 V DC power supply.
2. For the encoder cable, use of the option cable is recommended. For selecting cables, refer to "Servo Motor
Instruction Manual (Vol. 3)".
3. This is for the sink I/O interface. For source I/O interface, refer to section 3.9.3.
4. For connecting servo motor power wires, refer to "Servo Motor Instruction Manual (Vol. 3)".
5. Configure a circuit to turn off EM2 when the main circuit power is turned off to prevent an unexpected restart of the
servo amplifier.
6. Connecting a servo motor of the wrong axis to U, V, W, or CN2 of the servo amplifier may cause a malfunction.
7. The illustration of the 24 V DC power supply is divided between input signal, output signal, and external emergency
stop circuit for convenience. However, they can be configured by one. For 24 V DC power for I/O signal, use power
other than 24 V DC power of servo amplifier control circuit power supply.
8. The noiseless grounding (
from the noiseless grounding (
9. Circuit protectors are required for protection of power supplies, wires, servo amplifiers and others. When not using
a circuit protector, configure an external protective circuit such as a power supply with protection function.
Malfunction
RA1
24 V DC (Note 7)
Circuit
(Note 9)
protector
RA2
Circuit
(Note 9)
protector
(Note 5)
Main circuit power supply
24 V DC (Note 7)
) terminals and E terminals are connected in the servo amplifier. Be sure to ground
) terminal of CNP1 to the grounding terminal of the cabinet.
OFF
ON
RA2
Emergency stop switch
Servo amplifier
CNP1 CNP1
U
24
V
0
W
PM
(Note 8)
E
(Note 6)
CN2
CN1 CN1
EM2
DOCOM
SON
ALM
DICOM
18 - 18
RA2
Servo motor
(Note 4)
U
Motor
V
M
W
(Note 2)
Encoder
Encoder cable
24 V DC (Note 7)
Malfunction
RA1
(Note 3)