Mitsubishi Electric Melservo-J3 Series MR-J3-B Instruction Manual page 64

3. SIGNALS AND WIRING
(8) MR-J3-11KB4 to MR-J3-22KB4
(Note 9)
Stepdown
transformer
NFB
3-phase
380 to
480VAC
Forced stop
(Note 5)
Note 1. Always connect P -P. (Factory-wired.) When using the power factor improving DC reactor, refer to section 11.13.
1
2. When using the regenerative option, refer to section 11.2.
3. For the encoder cable, use of the option cable is recommended. Refer to section 11.1 for selection of the cable.
4. If deactivating output of trouble (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.
5. For the sink I/O interface. For the source I/O interface, refer to section 3.7.3.
6. Refer to section 3.10.
7. Servo amplifiers does not have BW when the cooling fan power supply is 1-phase.
8. For the cooling fan power supply, refer to section 3.10.2 (3) (b).
9. Stepdown transformer is required for coil voltage of magnetic contactor more than 200V class.
(Note 4) Controller
Servo motor
Alarm forced stop
thermal relay
RA1
RA3
MC
Regenerative
resistor
DOCOM
Forced
stop OFF
RA2
Servo amplifier
TE1
L
1
L
U
2
L
V
3
C
W
(Note 2)
P
(Note 1)
P
1
PE
L
11
L
21
CN2
Encoder cable
CN3 CN3
EM1
DOCOM
DICOM
ALM
3 - 9
ON
MC
MC
SK
Servo motor
Dynamic
break
(Option)
U
V
M
W
(Note 6)
(Note 3)
Encoder
Cooling fan
OHS1
24VDC
power supply
RA3
24VDC
RA1 Trouble
(Note 4)
(Note 8)
Cooling fan
power supply
BU
BV
BW (Note 7) (Note 7)
OHS2
Servo motor
thermal relay
(Note 5)