sh030106u.pdf - 第21页

1. FUNCTI ONS AND CONF IGURATION 1 - 4 Note 1. The bui lt-in re g enerative res istor is not provided for MR-J4-10B ( -RJ ) . 2. For 1-phas e 200 V AC to 240 V AC, connect t he power supply to L1 and L3. Leave L2 open. R…

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1. FUNCTIONS AND CONFIGURATION
1 - 3
1.2 Function block diagram
The function block diagram of this servo is shown below.
POINT
The diagram shows for MR-J4-_B_-RJ as an example. MR-J4-_B_ servo
amplifier does not have CN2L connector.
(1) 200 V class
(a) MR-J4-500B(-RJ) or less
Model position
Current
control
Actual
position
control
Actual
speed
control
Virtual
motor
Virtual
encoder
L11
L21
Cooling fan
(Note 3)
Encoder
(Note 4)
N-CD
L3
L2
L1
Dynamic
brake
circuit
Power factor improving
DC reactor
Current
detection
Overcurrent
protection
Voltage
detection
(Note 2)
Power
supply
MCMCCB
Base
amplifier
STO
circuit
CN5
USB
USB
Personal
computer
Servo system
controller or
servo amplifier
Servo
amplifier
or cap
CN1A CN1B
D/A
Analog monitor
(2 channels)
Position
command
input
CN3
Servo amplifier
U
V
W
U
V
W
P3 P4
Diode
stack
Relay
P+
+
+
B
RA
24 V DC
B1
B2
Battery
(for absolute position
detection system)
CN4
STO
switch
Model speed Model torque
M
CN2
CN8
Control
circuit
power
supply
Model
position
control
Model
speed
control
I/F Control
Servo motor
CHARGE
lamp
Regene-
rative
TR
Current
encoder
Digital I/O
control
Regenerative
option
U U
U
Step-
down
circuit
Electromagnetic
brake
(Note 1)
(Note 5)
(Note 6)
CN2L
External encoder
1. FUNCTIONS AND CONFIGURATION
1 - 4
Note 1. The built-in re
g
enerative resistor is not provided for MR-J4-10B
(
-RJ
)
.
2. For 1-phase 200 V AC to 240 V AC, connect the power supply to L1 and L3. Leave L2 open. Refer to section 1.3 for the power
suppl
y
specifications.
3. Servo amplifiers MR-J4-70B
(
-RJ
)
or more have a coolin
g
fan.
4. MR-J4 servo amplifier has P3 and P4 in the upstream of the inrush current suppression circuit. They are different from P1 and
P2 of MR-J3 servo amplifiers.
5. This is for MR-J4-
_
B-RJ servo amplifier. MR-J4-
_
B servo amplifier does not have CN2L connector.
6. The power factor improving AC reactor can also be used. In this case, the power factor improving DC reactor cannot be used.
When not usin
g
the power factor improvin
g
DC reactor, short P3 and P4.
1. FUNCTIONS AND CONFIGURATION
1 - 5
(b) MR-J4-700B(-RJ)
L11
L21
Cooling fan
N-C
Power factor improving
DC reactor
(Note 1)
Power
supply
MCMCCB
STO
circuit
CN5
USB
USB
CN1A CN1B
D/A
CN3
Servo amplifier
U
V
W
U
V
W
P3 P4
Relay
(Note 2)
P+
+
+
B
RA
B1
B2
CN4
M
CN2
CN8
Control
circuit
power
supply
CHARGE
lamp
Regene-
rative
TR
Regenerative
option
L3
L2
L1
U U
U
Current
detection
Overcurrent
protection
Voltage
detection
Base
amplifier
STO
switch
Current
encoder
Dynamic
brake
circuit
Servo motor
Electromagnetic
brake
24 V DC
Encoder
Model position
Current
control
Actual
position
control
Actual
speed
control
Virtual
motor
Virtual
encoder
Position
command
input
Model speed Model torque
Model
position
control
Model
speed
control
Step-
down
circuit
Battery
(for absolute position
detection system)
I/F Control
Personal
computer
Servo system
controller or
servo amplifier
Servo
amplifier
or cap
Analog monitor
(2 channels)
Digital I/O
control
(Note 3)
(Note 4)
Diode
stack
CN2L
External encoder
Note 1. Refer to section 1.3 for the power suppl
y
specifications.
2. MR-J4 servo amplifier has P3 and P4 in the upstream of the inrush current suppression circuit. They are different from P1 and
P2 of MR-J3 servo amplifiers.
3. This is for MR-J4-
_
B-RJ servo amplifier. MR-J4-
_
B servo amplifier does not have CN2L connector.
4. The power factor improving AC reactor can also be used. In this case, the power factor improving DC reactor cannot be used.
When not usin
g
the power factor improvin
g
DC reactor, short P3 and P4.