Mitsubishi Electric MELSERVO-J3 Series Handbook page 208

Part 5: Review on Replacement of MR-J3-DU_ with MR-J4-DU_
(b) MR-J3-DU_B/MR-J4-DU_B
MR-J3-DU_B
Converter unit
TE2-2
L+
(Note 5)
MCCB MC
L-
L
1
3-phase
CN40
L
200 to 230 V AC
2
50/60 Hz
L
3
L
11
L
21
CNP1 CN1
MC1 1 1
MC2 2 5
Power factor improving
6
DC reactor (Option)
(Note 2) 2
P
1
7
P
2
9
C
P C P C
G3 G4 G3 G4
Regenerative Regenerative
option (Note 1) option (Note 1)
Cooling fan Cooling fan
R1 S1 R1 S1
Drive
Servo motor (Note 3)
unit trouble
thermal relay
Forced stop EM1
RA1 RA2 RA3 RA4 OFF/ON
Converter
Controller Operation
unit trouble
forced stop -ready
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. For specifications of cooling fan power supply, refer to "MR-J3-_A_ Servo
amplifier instruction manual"
5. Be sure to use a magnetic contactor with an operation delay time of 80ms
or less. The operation delay time is the time interval between current
being applied to the coil until closure of contacts.
6. 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.
(Note 6)
Drive unit
External
TE2-1
dynamic brake
L+
(Option)
L-
Servo motor
CN40A
MR-J3CDL05M
cable U
CN40B
U
Termination
V
connector V
MR-J3-TM W
W
(Option)
Encoder cable
CN2
DICOM
MCCB
24 V DC
BU
DOCOM
(Note 4)
BV
Power
DICOM
supply BW
ALM
RA2
EM1
OHS1
(Note 3)
DOCOM
CN3
P C
10
DICOM
G3 G4
15 ALM
RA1
Regenerative
24 V DC
option (Note 1)
5
DICOM
Cooling fan
3
DOCOM
R1 S1
20
EM1
(Note 3)
SD
L Plate
11
L
21 24 V DC
RA3
MC
SK
Converter unit
Drive unit
malfunction
RA1
Resistance regeneration
M
MC1
MC2
(Note 4)
MCCB MC
Encoder
3-phase
200 V AC to
240 V AC
Cooling fan
(Note 9) (Note 9)
OHS2
Servo
Power factor improving
motor
DC reactor (optional)
thermal
relay
RA3
24 V DC
P C
G3 G4
(Note 1)
Regenerative
option
Cooling fan
R1 S1
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. For specifications of the cooling fan power supply, refer to "Servo Motor
Instruction Manual (Vol. 3)".
4. 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.
5. 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.
6. 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".
7. For the encoder cable, use of the option cable is recommended. For
selecting cables, refer to "Servo Motor Instruction Manual (Vol. 3)".
8. This diagram shows sink I/O interface. For source I/O interface, refer to
"MR-CV_/MR-CR55K_/MR-J4-DU_(-RJ) instruction manual".
9. Install an overcurrent protection device (molded-case circuit breaker or
fuse) to protect the branch circuit. (Refer to section 7.3.)
10. When not using the STO function, attach the short-circuit connector
supplied with the drive unit.
11. Do not connect a servo motor of the wrong axis to U, V, W, or CN2 of the
drive unit. Otherwise, a malfunction may occur.
12. For connecting servo motor power wires, refer to "Servo Motor Instruction
Manual (Vol. 3)".
13. 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 - 13
MR-J4-DU_B
Optional
Emergency stop
Operation ready
malfunction
thermal
switch
OFF/ON
RA2 RA3
converter unit Drive unit
TE2-2
TE2-1
CNP1
L+
L+
1
L-
L-
2
CN40A
CN40
MR-J3CDL05M
cable
U
L1
(Note 11) V
L2
W
L3 (Note 7) Encoder cable
CN1 (Note 11)
CN2
1
DICOM
L11
24 V DC
L21 5
DOCOM
6
DICOM
(Note 8)
(Note 2)
ALM
2
RA2
P1
7 EM1
P2
CN8
9
DOCOM
C
CN3
P C P C
10
DICOM
G3 G4 G3 G4
(Note 1) (Note 1)
15 ALM
Regenerative Regenerative
option option
Cooling fan Cooling fan 5
DICOM
R1 S1 R1 S1
3
DOCOM
20 EM2
L11
Plate SD
L21
MC
SK
(Note 6, 13)
External
dynamic brake
(optional)
(Note 12) Servo motor
U
M
V
W
MCCB
BU
Encoder
(Note 3)
BV
Power
supply
BW
Cooling fan
(Note 10)
Short-circuit connector
(packed with the drive unit)
RA1
24 V DC
(Note 5)
Main circuit
power supply