sh030051g.pdf - 第328页

13 - 27 13. SERVO AMPLIFIERS WI TH A LARGE CAPACITY ( 30k TO 55kW ) (1) When magnetic contactor control connecto r (CNP1) is made valid (factor y-set) POINT The converter unit controls the main circuit magneti c contacto…

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13 - 26
13. SERVO AMPLIFIERS WITH A LARGE CAPACITY
(
30k TO 55kW
)
13.3.2 Input power supply circuit
WARNING
Insulate the connections of the power supply terminals. Not doing so can cause an
electric shock.
Magnetic contactor wiring connector on the converter unit CNP1.
Unattached state may cause an electric shock.
CAUTION
Always, connect the magnetic contactor (MC) between the main circuit power
supply and L
1, L2, and L3 of the converter unit, and configure to shut off the power
supply on the side of the converter unit power supply. If the magnetic contactor
(MC) is not connected, a large current keeps flowing and may cause a fire when
the converter unit or the drive unit malfunctions.
Use the trouble signal to switch power off. Otherwise, a regenerative transistor fault
or the like may overheat the regenerative resistor, causing a fire.
Connect the power supply phases (U, V, W) of the servo amplifier and servo motor
correctly. Not doing so can cause the servo motor to run abnormally.
Do not connect a 3-phase 200V power supply or a 3-phase 400V power supply
directly to the servo motor. Doing so can cause a failure.
POINT
Magnetic contactor control connector (CNP1) of the converter unit can be
made valid or invalid with parameter No.PA02 of the converter unit. Refer to
section 13.3.1 and 13.3.6 for details of CNP1 and section 13.5 for the
parameter settings.
When using the external dynamic brake, refer to section 11.6 and 13.9.3.
13 - 27
13. SERVO AMPLIFIERS WITH A LARGE CAPACITY
(
30k TO 55kW
)
(1) When magnetic contactor control connector (CNP1) is made valid (factory-set)
POINT
The converter unit controls the main circuit magnetic contactor.
Refer to section 13.3.7 (1) for the power circuit timing chart, section 13.3.7 (2)
for the alarm occurrence timing chart, section 13.3.7 (3) for the forced stop
(EM1) timing chart.
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 4)
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
L1
L
2
L
3
L11
L
21
NFB
1MC1
2MC2
CN40 CN40A
CN2
Dynamic
brake
(Option)
Servo
motor
thermal
relay
RA3
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
L21
G4G3
PC
G4G3
PC
SR
G4
G3
PC
Cooling fan Cooling fan Cooling fan
SRSR
CNP1
CN1
1
DICOM
5
DOCOM
6
DICOM
RA22ALM
7EM1
9
DOCOM
CN3
EM1
3
20
SDPlate
DICOM
10
ALM15
DOCOM
5
DICOM
RA1
RA3RA1 RA2
EM1 OFF/ON
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
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 turns off the drive unit forced stop (EM1) and the converter unit forced stop (EM1) at the same time.
4. For specifications of cooling fan power supply, refer to section 13.3.8.
13 - 28
13. SERVO AMPLIFIERS WITH A LARGE CAPACITY
(
30k TO 55kW
)
(b) 400V class (MR-J3-DU30KB4 to MR-J3-DU55KB4)
Termination
connector
MR-J3-TM
(Option)
L
L
Encoder cable
Converter unit Drive unit
MC
L
1
L
2
L
3
L11
L
21
NFB
3-phase
380 to 480VAC
50/60Hz
1MC1
2MC2
CN40 CN40A
CN2
Servo motor
thermal relay
RA3
OHS1
BW
BV
BU
M
OHS2
Encoder
V
U
W
CN40B
24VDC
power supply
V
U
W
Servo motor
NFB
(Note 5)
Power
supply
TE2-2
L
L
TE2-1
C
P
1
P2
Power factor improving
DC reactor (Option)
(Note 2)
L
11
L
21
G4G3
PC
G4G3
PC
S400R400
G4
G3
PC
Regenerative
option(Note 1)
S400R400 S400R400
CNP1
CN1
1
DICOM
5
DOCOM
6
DICOM
RA22ALM
7EM1
9
DOCOM
CN3
EM1
3
20
SDPlate
DICOM
10
ALM15
DOCOM
5
DICOM
RA1
Regenerative
option(Note 1)
Regenerative
option(Note 1)
RA1 RA2 RA3
Converter
unit
Motor
thermal relay
Operation
-ready
Drive
unit
EM1 OFF/ON
SK
RA4
Controller
forced stop
MC
(Note 3)
Forced stop
(Note 3)
(Note 3)
Cooling fan Cooling fan Cooling fan
Cooling fan
(Note 4)
Stepdown
transformer
MR-J3CDL05M
cable
24VDC
Dynamic
brake
(Option)
Dynamic
brake
(Option)
24VDC
Note 1. For the MR-RB138-4. For the MR-RB138-4, 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 turns off the drive unit forced stop (EM1) and the converter unit forced stop (EM1) at the same time.
4. Stepdown transformer is required for coil voltage of magnetic contactor more than 200V class.
5. For specifications of cooling fan power supply, refer to section 13.3.8.