Mitsubishi Electric MELSERVO-J3 Series Handbook page 212

Part 5: Review on Replacement of MR-J3-DU_ with MR-J4-DU_
(1) 200 V class
(a) MR-J3-DU_A/MR-J4-DU_A
MR-J3-DU_A
Converter unit
(Note 6)
MCCB MC
3-phase
200 to 230VAC
50/60Hz
(Note 4)
MC1
MC2
Power factor improving
DC reactor (Option)
P C P
G3 G4 G3
Regenerative Regenerative
option(Note 1) option(Note 1)
Cooling fan Cooling fan
R1 S1 R1
Drive Servo motor
unit trouble thermal relay
RA1 RA2 RA3
Converter Emergency stop
unit trouble (EMG/EM1)
(Note 3)
Note 1. For the MR-RB137. For the MR-RB137, three units are used as one set
(permissible wattage: 3900W).
2. When using the Power factor improving DC reactor, disconnect the short
bar across P1 and P2.
3. Make up a sequence that will concurrently turn off the Emergency stop
(EMG) of the drive unit and the Forced stop (EM1) of the converter unit,
and shut off the main circuit power supply by the external sequence.
4. Keep the wiring connector for the magnetic contactor connected to CNP1
of the converter unit. Unconnected status may cause an electric shock.
5. For specifications of cooling fan power supply, refer to "MR-J3-_A_ Servo
amplifier instruction manual".
6. Be sure to use a magnetic contactor with an operation delay time of 80
ms or less. The operation delay time is the time interval between current
being applied to the coil until closure of contacts.
7. Use an external dynamic brake for the drive unit. Failure to do so will
cause an accident because the servo motor does not stop immediately
but coasts at an emergency stop and such conditions. Ensure the safety
in the entire system.
Drive unit (Note 7)
External
TE2-2 TE2-1
dynamic brake
L L
(Option)
L L
L
1
CN40 CN40A
L
2
MR-J3CDL05M
cable
L U
3
CN40B U
Termination
L V
11 connector
V
MR-J3-TM
L W
21
(Option)
W
Encoder cable
CNP1 CN1
CN2
1 1 DICOM
MCCB
24 V DC
BU
2 5
DOCOM
(Note 5)
BV
Power
6 DICOM
supply
BW
(Note 2)
2 ALM RA2
P
1
7 EM1
P
OHS1
2
(Note 3)
9
DOCOM
C
CN1
C P C
21 DICOM
G4 G3 G4
Regenerative
48 ALM RA1
option(Note 1)
24 V DC
Cooling fan
20 DICOM
S1 R1 S1
46 DOCOM
42 EMG
L
11
15 SON
L
21
Operation
Plate SD
-ready
24 V DC
OFF ON
R A3
MC
MC
SK
Drive unit
malfunction
RA1
Servo motor
M
MCCB
3-phase
200 V AC to
240 V AC
Encoder
Cooling fan
OHS2
Servo
Power factor improving
motor
DC reactor (optional)
thermal
relay
24 V DC
(No te 3)
Note 1. This is for MR-RB137. For the MR-RB137, three units are used as one set
(permissible regenerative power: 3900 W).
2. P1 and P2 are connected by default. When using the power factor
improving DC reactor, connect P1 and P2 after removing
the short bar across them. Refer to "Part 8: section 7.3" for details.
3. Always connect the magnetic contactor wiring connector to CNP1 of the
resistance regeneration converter unit. If the connector is not connected,
Aan electric shock may occur.
4. For specifications of the cooling fan power supply, refer to "Servo Motor
Instruction Manual (Vol. 3)".
5. 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.
The bus voltage decreases depending on the main circuit voltage and
operation pattern, which 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.
6. To prevent an unexpected restart of the drive unit, configure a circuit to
turn off EM2 in the drive unit when the main circuit power is turned off.
7. Use an external dynamic brake for the drive unit. Failure to do so will
cause an accident because the servo motor does not stop immediately but
coasts at an alarm occurrence for which the servo motor does not
decelerate to stop. Ensure the safety in the entire equipment. For alarms
for which the servo motor does not decelerate to stop and for wiring of the
external dynamic brake, refer to "MR-CV_/MR-CR55K_/MR-J4-DU_(-RJ)
instruction manual".
8. For the encoder cable, use of the option cable is recommended. For
selecting cables, refer to "Servo Motor Instruction Manual (Vol. 3)".
9. This diagram shows sink I/O interface. For source I/O interface, refer to
"MR-CV_/MR-CR55K_/MR-J4-DU_(-RJ) instruction manual".
10. Install an overcurrent protection device (molded-case circuit breaker or
fuse) to protect the branch circuit. (Refer to section 7.3.)
11. When not using the STO function, attach the short-circuit connector
supplied with the drive unit.
12. Do not connect the servo motor of a wrong axis to U, V, W, or CN2 of the
drive unit. Otherwise, a malfunction may occur.
13. For connecting servo motor power wires, refer to "Servo Motor Instruction
Manual (Vol. 3)".
14. The external dynamic brake cannot be used for compliance with SEMI-
F47 standard. Do not assign DB. Failure to do so will cause the drive unit
to become servo-off when an instantaneous power failure occurs.
5 - 17
MR-J4-DU_A
Converter unit
Optional Operation ready
Emergency stop
malfunction thermal
switch
OFF
RA2 RA3
Resistance regeneration
converter unit Drive unit
TE2-2
TE2-1
(Note 5)
L+
L+
MC
L1 L-
L-
L2 CN40 CN40A
MR-J3CDL05M
L3
cable
L11
(Note 12)
L21
(Note 10) (Note 10)
(Note 3)
CNP1 CN1
(Note 12)
MC1 1 1
DICOM
24 V DC
5
MC2 2
DOCOM
6
DICOM
(Note 9)
(Note 2) 2 ALM
RA3 RA2
P1
7 EM1
P2
9
DOCOM
C
P C P C P C
G3 G4 G3 G4 G3 G4
(Note 1) (Note 1) (Note 1)
Regenerative Regenerative Regenerative
option option option
Cooling fan Cooling fan Cooling fan
R1 S1 R1 S1 R1 S1
L11
L21
ON
MC
MC
SK
(Note 7, 14)
External
dynamic brake
(optional)
Servo motor
(Note 13)
U
U
M
V
V
W
W
(Note 8) Encoder cable
CN2
MCCB
BU
Encoder
(Note 4)
BV
Power
supply
BW
Cooling fan
CN8
(Note 11)
Short-circuit connector
(packed with the drive unit)
CN1
24 V DC
46
DOCOM
ALM
48
RA1
EM2
42
(Note 5)
Main circuit power supply
SON
15
24 V DC
21 DICOM