Circuit Protector; Function Block Diagram - Mitsubishi Electric MR-J4W2-0303B6 Instruction Manual

18. MR-J4W2-0303B6 SERVO AMPLIFIER

18.1.2 Function block diagram

The function block diagram of this servo is shown below.
48 V DC main circuit
power supply
Circuit
48 V DC
RA
protector
24 V DC
24 V DC main circuit
power supply
Circuit
protector
24 V DC
Servo amplifier
PM
Built-in
regenerative
resistor
+
CHARGE
lamp
0
24
Control
+
circuit
power
supply
Base amplifier
Overcurrent
Regenerative
brake (A)
Control (A)
Model position Model speed
control (A) control (A)
Virtual
motor
Current
Actual position Actual speed
control (A)
control (A) control (A)
I/F
Control
CN1A CN1B
Servo system Servo
controller or amplifier
servo amplifier or cap
Inverter (A)
Current
detector
Regene-
rative
TR
Inverter (B)
Current
detector
Current
Overcurrent
detection Overvoltage
(B)
(A)
Virtual Control (B)
encoder
Model position Model speed
control (B) control (B)
Actual position Actual speed
control (B) control (B)
USB D/A
CN5
Personal
Analog monitor
computer
(two channels)
USB
18 - 2
A-axis servo motor
U1
V1
W1
E1
RA
24 V DC
B-axis servo motor
U2
V2
W2
E2
RA
24 V DC
Current
detection
(B)
Step-
down
circuit
Virtual
encoder
MR-BAT6V1SET-A
Virtual
motor Battery
(absolute position
detection system)
Current
control (B)
CN3
Digital
I/O control
U
V
M
W
B1
Electro-
magnetic
B
brake
B2
Encoder
U
V
M
W
B1
Electro-
magnetic
B
brake
B2
Encoder