Mitsubishi Electric Melservo MR-J3- 350B4, Instruction Manual

Page: 326 / 408

13 - 29
13. SERVO AMPLIFIERS WITH A LARGE CAPACITY (30k TO 55kW)
(2) When magnetic contactor control connector (CNP1) is made invalid
POINT
The converter unit controls the main circuit magnetic contactor.
When making CNP1 invalid, set "0000" in parameter No.PA02.
(Refer to section 13.5.)
Always connect a protection coordination cable (MR-J3CDL05M) and a
termination connector (MR-J3-TM). When they are not connected properly,
the servo-on may not be turned ON.
For the control power supplies of the converter unit and the drive unit, always
turn ON or OFF at the same time.
(a) 200V class (MR-J3-DU30KB MR-J3-DU37KB)
(Note 5)
Power
supply
Regenerative
option(Note 1)
Regenerative
option(Note 1)
Regenerative
option(Note 1)
MC
(Note 3)
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
NFB
1 MC1
2 MC2
CN40 CN40A
CN2
Dynamic
brake
(Option)
Servo
motor
thermal
relay
OHS1
BW
BV
BU
M
OHS2
V
U
W
CN40B
24VDC
power supply
V
U
W
Servo motor
NFB
TE2-2
L
L
TE2-1
C
P
1
P
2
Power factor improving
DC reactor (Option)
(Note 2)
L
11
L
21
G4 G3
P C
G4 G3
P C
S R
G4 G3
P C
Cooling fan Cooling fan Cooling fan
S R S R
CNP1 CN1
1
DICOM
5
DOCOM
6
DICOM
RA2 2 ALM
7 EM1
9
DOCOM
CN3
EM1
3
20
SD Plate
DICOM
10
ALM 15
DOCOM
5
DICOM
RA1
RA3 RA1 RA2
EM1
SK
Converter
unit
Motor
thermal relay
Operation
-ready
Drive
unit
RA4
Controller
forced stop
(Note 3)
Forced stop
MC
Cooling fan
Encoder cable
(Note 3)
24VDC
24VDC
3-phase
200 to 230VAC
50/60Hz
Encoder
OFF
ON
MC
MC
SK
(Note 4)
RA3
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 P
1
-P
2
.
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.
4. Attach connector for magnetic contactor control (CNP1) on the converter unit. Unattached state may cause an electric shock.
5. For specifications of cooling fan power supply, refer to section 13.3.8.