26
1 FUNCTIONS AND CONFIGURATION
1.2 Function block diagram
■
MR-J4-500GF4(-RJ)/MR-J4-700GF4(-RJ)
*1 Refer to the following for the power supply specification.
Page 30 Servo amplifier standard 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-_GF4-RJ servo amplifier. MR-J4-_GF4 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
using the power factor improving DC reactor, short P3 and P4.
Dynamic
brake
circuit
Current
detector
Virtual
motor
Virtual
encoder
L11
L21
Cooling fan
Encoder
N-
C
Current
detection
Overcurrent
protection
Voltage
detection
Power
supply
*1
MC
MCCB
Base
amplifier
STO
circuit
CN5
USB
USB
CN1A
CN1B
D/A
Position
command
input
CN3
Servo amplifier
Diode
stack
U
V
W
U
V
W
P3
P4
*2
Relay
P+
+
+
B
RA
24 V DC
B1
B2
Battery
(For absolute position
detection system)
CN4
STO
switch
M
CN2
CN8
Control
circuit
power
supply
Model
position
control
Model
speed
control
Servo motor
Regenerative
option
L3
L2
L1
U
U
U
Step-
down
circuit
Power factor improving
DC reactor
*4
Charge
lamp
Regene-
rative
TR
Electromagnetic
brake
Model position Model speed Model torque
Current
control
Actual
position
control
Actual
speed
control
I/F Control
Personal
computer
Analog monitor
(2 channels)
Digital I/O
control
CN2L
External encoder
Controller or
servo amplifier
Controller or
servo amplifier
*3
Содержание MELSERVO-J4 series
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