Mitsubishi Electric Melservo MR-J3-100B, Handbook

Page: 215 / 590

Part 5: Review on Replacement of MR-J3-DU_ with MR-J4-DU_
5 - 20
(b) MR-J3-DU_B4/MR-J4-DU_B4
MR-J3-DU_B4 MR-J4-DU_B4
RA1 RA2 RA3 RA4
MC
RA2
L+
L-
Drive unit
L
1
L
2
L
3
L
11
L
21
MCCB
1 MC1
2 MC2
CN40 CN40A
CN2
OHS1
M
OHS2
V
U
W
CN40B
V
U
W
L+
TE2-2
L-
TE2-1
C
P
1
P
2
L
11
L
21
G4 G3
C P
G4 G3
P C
R400 S400
G4 G3
P C
R400 S400
CNP1 CN1
1
5
6
2
7
9
CN3
3
20
10
15
5
RA3
BW
BV
BU
MCCB
MC
ON
MC
OFF
SK
Converter unit
Servo motor
External
dynamic brake
(optional)
(Note 8)
Encoder cable
MR-J3CDL05M
cable
Termination
connector
MR-J3-TM
(Option)
(Note 7)
(Note 6)
Power
supply
Encoder
Cooling fan
3-phase
380 to 480 V AC
50/60 Hz
Servo
motor
thermal
relay
DICOM
DOCOM
DICOM
ALM
DOCOM
EM1
(Note 5)
Power factor improving
DC reactor (Option)
(Note 2)
(Note 3)
RA1
EM1
SD
ALM
DICOM
DOCOM
DICOM
24 V DC
(Note 3)
Plate
24 V DC
Regenerative
option (Note 1)
Regenerative
option (Note 1)
Regenerative
option (Note 1)
Cooling fan Cooling fan Cooling fan
R400 S400
(Note 4)
Stepdown
transformer
Drive unit
trouble
Converter
unit trouble
Controller
forced stop
Servo motor
thermal relay
Forced stop
(EM1)
(Note 3)
Operation
-ready
BW
BV
BU
(Note 5)
Power
supply
MCCB
Cooling fan
(Note 7)
Main circuit
power supply
RA1
MC
(Note 6)
RA2
L+
L-
MR-J3CDL05M
cable
Drive unit
L1
L2
L3
L11
L21
MCCB
CN40A
(Note 13)
CN2
External
dynamic brake
( optional )
M
Encoder
V
U
W
V
U
W
Servo motor
TE2-2
L+
L-
TE2-1 (Note 15)
C
P1
P2
Power factor improving
DC reactor ( optional )
(Note 2)
L11
L21
G4 G3
P C
G4 G3
P C
S400 R400
G4 G3
P C
S400 R400 S400 R400
CN1
1
DICOM
5
DOCOM
6
DICOM
2 ALM
7 EM1
9
DOCOM
CN3
EM2
3
20
SD
DICOM
10
ALM 15
DOCOM
5
DICOM
(Note 9) Encoder cable
24 V DC
24 V DC
(Note 8, 16)
CN40
1 MC1
2 MC2
CNP1
RA3 RA1 RA2
MC
MC
SK
RA3
24 V DC
(Note 11)
(Note 13)
(Note 12)
Short-circuit connector
(packed with the drive unit)
CN8
(Note 10)
(Note 4)
(Note 14)
(Note 11)
(Note 3)
Step-down
transformer
Optional
thermal
Drive unit
malfunction
Emergency stop
switch
(Note 1)
Regenerative
option
3-phase
380 V AC to
480 V AC
Cooling fan
(Note 1)
Regenerative
option
Cooling fan
(Note 1)
Regenerative
option
Cooling fan
Plate
Operation ready
ON
OFF
Converter unit
Converter unit
malfunction
Note 1. For the MR-RB138-4. For the MR-RB138-4, three units are used as one
set (permissible wattage: 3900W).
Note 1. This is for MR-RB13V-4. For the MR-RB13V-4, three units are used as
one set (permissible regenerative power: 3900 W).
2. When using the Power factor improving DC reactor, disconnect the short
bar across P1 and P2. 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 7.4" for details.
3. Make up a sequence that turns off the drive unit forced stop (EM1) and
the converter unit forced stop (EM1) at the same time.
3. A step-down transformer is required when the coil voltage of the magnetic
contactor is 200 V class. 4. Stepdown transformer is required for coil voltage of magnetic contactor
more than 200 V class. 4. Always connect the magnetic contactor wiring connector to CNP1 of the
converter unit. If the connector is not connected, an electric shock may
occur. 5. Keep the wiring connector for the magnetic contactor connected to CNP1
of the converter unit. Unconnected status may cause an electric shock.
6. For specifications of cooling fan power supply, refer to "MR-J3-_B_ Servo 5. For specifications of the cooling fan power supply, refer to "Servo Motor
Instruction Manual (Vol. 3)". amplifier instruction manual".
7. 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.
6. 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
8. Use an external dynamic brake for the drive unit. Failure to do so will but
cause an accident because the servo motor does not stop immediately
coasts at an emergency stop and such conditions. Ensure the safety in
the entire system.
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.
7. 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.
8. 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, refer to chapter 6.
For wiring of the external dynamic brake, refer to "MR-CV_/MR-
CR55K_/MR-J4-DU_(-RJ) instruction manual".
9. For the encoder cable, use of the option cable is recommended. For
selecting cables, refer to "Servo Motor Instruction Manual (Vol. 3)".
10. This diagram shows sink I/O interface. For source I/O interface, refer to
"MR-CV_/MR-CR55K_/MR-J4-DU_(-RJ) instruction manual".
11. Install an overcurrent protection device (molded-case circuit breaker or
fuse) to protect the branch circuit. (Refer to section 7.3.)
12. When not using the STO function, attach the short-circuit connector
supplied with the drive unit.
13. 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.
14. For connecting servo motor power wires, refer to "Servo Motor Instruction
Manual (Vol. 3)".
15. For the MR-J4-DU30K_4(-RJ) and MR-J4-DU37K_4(-RJ), the terminal
block is TE2.
16. 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.