Mitsubishi Electric MELSERVO-J3W Series Instruction Manual page 407

15. MR-J3W-0303BN6 SERVO AMPLIFIER
15.1.1 Function block diagram
The function block diagram of this servo is shown below.
Main circuit power
supply: 48VDC
Circuit
48VDC
RA
protector
24VDC
Main circuit power
supply: 24VDC
Circuit
protector
24VDC
Servo amplifier
PM
CHARGE
0
lamp
24
Control
circuit
power
supply
Base amplifier
Regenerative
Overcurrent
brake
A
Control (A)
Model speed
Model position
control (A)
control (A)
Virtual
motor
Actual position Actual speed
control (A) control (A)
control (A)
I/F
Control
CN1A CN1B
Controller or
Servo amplifier
servo amplifier
or cap
Inverter (A)
Built-in
regenerative
resistor
Regenerative
TR
Inverter (B)
Current
Overcurrent
detection
Overvoltage
A
Virtual
Control (B)
encoder
Model position Model speed
control (B) control (B)
Current
Actual position Actual speed
control (B) control (B)
USB D/A
CN5
Personal
Analog monitor
computer
(2 channels)
USB
15 - 2
Current
detector
Current
detector
Current
detection
B
B
Virtual
encoder
Virtual
motor
Current
control (B)
CN3
Digital I/O
control
A-axis Servo motor
U U
V V
M
W W
B1
RA
Electro-
B
magnetic
24VDC
brake
B2
Encoder
B-axis Servo motor
U U
V V
M
W W
B1
RA
Electro-
B
magnetic
24VDC
brake
B2
Encoder
MR-
J3BAT
Battery + Mounting
attachment
(for absolute position
detection system)