Mitsubishi Electric Melservo MR-J3-100B, Handbook

Page: 208 / 590

Part 5: Review on Replacement of MR-J3-DU_ with MR-J4-DU_
5 - 13
(b) MR-J3-DU_B/MR-J4-DU_B
MR-J3-DU_B MR-J4-DU_B
RA1 RA2
Servo motor
thermal relay
RA3 OFF/ON
Converter
unit trouble
Operation
-ready
Drive
unit trouble
Forced stop EM1
MC
SK
RA4
Controller
forced stop
RA1
MC
(Note 5)
MCCB
RA2
Regenerative
option (Note 1)
Termination
connector
MR-J3-TM
(Option)
L+
L-
MR-J3CDL05M
cable
Converter unit Drive unit
L
1
L
2
L
3
L
11
L
21
3-phase
200 to 230 V AC
50/60 Hz
1
2
MC1
MC2
CN40 CN40A
CN2
OHS1
BW
BV
BU
M
OHS2
Servo
motor
thermal
relay
Encoder
V
U
W
CN40B
V
U
W
(Note 6)
Servo motor
L+
L-
TE2-2 TE2-1
C
P
1
P
2
Power factor improving
DC reactor (Option)
L
11
L
21
G4 G3
C P
G4 G3
C P
S1 R1
G4 G3
P C
Cooling fan
S1 R1 R1 S1
CNP1 CN1
1
5
DICOM
6
DOCOM
DICOM
2
7
ALM
9
EM1
DOCOM
CN3
EM1
3
20
SD
10
15
5
DOCOM
DICOM
Encoder cable
24 V DC
MCCB
Cooling fan
RA3
Power
supply
External
dynamic brake
(Option)
(Note 2)
(Note 3)
(Note 4)
DICOM
ALM
24 V DC
24 V DC
(Note 3)
Cooling fan Cooling fan
Regenerative
option (Note 1)
Regenerative
option (Note 1)
(Note 3)
Plate
RA3 RA1 RA2
Optional
thermal
Operation ready
OFF/ON
Drive unit
malfunction
Emergency stop
switch
MC
SK
RA1
MC
(Note 4)
MCCB
RA2
(Note 1)
Regenerative
option
L+
L-
MR-J3CDL05M
cable
Drive unit
L1
L2
L3
L11
L21
3-phase
200 V AC to
240 V AC
1 MC1
2 MC2
CN40 CN40A
(Note 11)
CN2
External
dynamic brake
( optional )
BV
M
Encoder
V
U
W
V
U
W
Servo motor
(Note 3)
Power
supply
TE2-2
L+
L-
TE2-1
C
P1
P2
Power factor improving
DC reactor ( optional )
(Note 2)
L11
L21
G4 G3
P C
G4 G3
P C
S1 R1
G4 G3
P C
Cooling fan
(Note 1)
Regenerative
option
Cooling fan
(Note 1)
Regenerative
option
Cooling fan
S1 R1 S1 R1
CNP1
CN1
1
DICOM
5
DOCOM
6
DICOM
2
ALM
7 EM1
9
DOCOM
CN3
EM2
3
20
SD Plate
DICOM
10
ALM 15
DOCOM
5
DICOM
(Note 7) Encoder cable
24 V DC
24 V DC
MCCB
BW
BU
Cooling fan
(Note 5)
Main circuit
power supply
(Note 6, 13)
RA3
24 V DC
(Note 10)
Short-circuit connector
(packed with the drive unit)
CN8
(Note 11)
(Note 8)
(Note 12)
(Note 9) (Note 9)
Resistance regeneration
converter unit
Converter unit
malfunction
Note 1. For the MR-RB137. For the MR-RB137, three units are used as one set
(permissible wattage: 3900W).
Note 1. This is for MR-RB137. For the MR-RB137, 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 7.3" for details.
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.
3. For specifications of the cooling fan power supply, refer to "Servo Motor
Instruction Manual (Vol. 3)".
4. For specifications of cooling fan power supply, refer to "MR-J3-_A_ Servo
amplifier instruction manual"
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.
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.
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
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.
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.