Functions And Configuration; Function Block Diagram - Mitsubishi Electric MELSERVO-J4 series Instruction Manual

1. FUNCTIONS AND CONFIGURATION

1.2 Function block diagram

The function block diagram of this servo is shown below.
(1) 200 V class
(a) MR-J4-500B(-RJ) or less
Servo amplifier
MCCB MC
L1
(Note 2)
U
L2
Power
supply
U U
L3
L11
L21
STO
switch
command
Servo system
controller or
servo amplifier
POINT
The diagram shows for MR-J4-_B_-RJ as an example. MR-J4-_B_ servo
amplifier does not have CN2L connector.
(Note 6)
Power factor improving Regenerative
DC reactor
(Note 4)
P3 P4
Diode
stack
Relay
+
CHARGE
Cooling fan
lamp
(Note 3)
Control
+
circuit
power
STO
supply
circuit
Base
amplifier
Position
Model
input
position
control
Model position
Actual
position
control
I/F Control
CN1A CN1B
Servo
amplifier
or cap
option
P+ C D N-
(Note 1)
Regene-
rative
TR
Voltage
Overcurrent
detection
protection
Virtual
encoder
Model
speed
control
Virtual
motor
Model speed Model torque
Actual
Current
speed
control
control
USB
CN5
Personal
Analog monitor
computer
(2 channels)
USB
1 - 3
Dynamic
brake
circuit
U U
V V
Current
encoder
W W
RA
24 V DC
Current
detection
Step-
down
circuit
Battery
(for absolute position
detection system)
External encoder
(Note 5)
D/A
CN3
Digital I/O
control
Servo motor
M
B1
Electromagnetic
B
brake
B2
Encoder