15 - 29
15. SERVO AMPLIFIERS WITH A LARGE CAPACITY
30k TO 55kW
(2) When magnetic contactor control connector (CNP1) is made invalid
POINT
When making CNP1 invalid, set "0000" in parameter No.PA02.
(Refer to section 15.5.)
Make sure to 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, make sure
to turn ON or OFF at the same time.
(a) 200V class (MR-J3-DU30KA
MR-J3-DU37KA)
Emergency stop
(EMG EM1)
(Note 3)
MC
ON
MC
NFB
MC
(Note 6)
(Note 3)
NFB
RA2
L
L
L
1
L
2
L3
L11
L
21
3-phase
200 to 230VAC
50/60Hz
1MC1
2MC2
CN40 CN40A
CN2
BW
BV
BU
M
V
U
W
CN40B
V
U
W
TE2-2
L
L
TE2-1
C
L
11
L
21
PC PC
S1R1
PC
S1R1 S1R1
CNP1
CN1
EMG
46
42
SON
DICOM
21
ALM48
DOCOM
20
DICOM
SDPlate
15
(Note 3)
CN1
1
DICOM
5
DOCOM
6
DICOM
2ALM
7EM1
9
DOCOM
P1
P
2
(Note 2)
(Note 4)
24VDC
24VDC
RA1
OHS1
OHS2
24VDC
RA3
RA3RA1 RA2
OFF
SK
Power factor improving
DC reactor (Option)
(Note 5)
Power
supply
Servo
motor
thermal
relay
External
dynamic brake
(Option)
Converter unit Drive unit
Servo motor
Regenerative
option(Note 1)
G4G3
Cooling fan
Termination
connector
MR-J3-TM
(Option)
MR-J3CDL05M
cable
Converter
unit trouble
Servo motor
thermal relay
Operation
-ready
Drive
unit trouble
Encoder
Cooling fan
Encoder cable
Regenerative
option(Note 1)
G4G3
Cooling fan
Regenerative
option(Note 1)
G4G3
Cooling fan
(Note 7)
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-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 section 15.3.8.
6. 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.
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.
