Function Block Diagram - Mitsubishi Electric MELSERVO-J3W Series Instruction Manual

1. FUNCTIONS AND CONFIGURATION

1.2 Function block diagram

The function block diagram of this servo is shown below.
Servo amplifier
MCCB MC
(Note 2)
Power
supply
Controller or
servo amplifier
Regenerative
option
P
Diode
Relay
stack
L
1
L
2
L
3
CHARGE
lamp
Cooling fan
(Note 1)
L
11 Control
circuit
power
L
21
supply
Base amplifier
Overcurrent
Regenerative
A
brake
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 amplifier
or cap
C D
CNP2
Built-in regenerative resistor
TRM(A)
Regene-
rative
TR
TRM(B)
Current
detection Overvoltage
A
Control (B)
Virtual
encoder
Model position Model speed
control (B) control (B)
Actual position Actual speed
control (B) control (B)
D/A
USB
CN5
Personal
Analog monitor
computer
(2 channels)
USB
1 - 2
Current
detector
Dynamic
brake circuit
(A)
Current
detector
Dynamic
brake circuit
(B)
Current
Overcurrent
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-
magnetic
B
24VDC
brake
B2
Encoder
B-axis Servo motor
U U
V V
M
W W
B1
RA
Electro-
magnetic
B
24VDC
brake
B2
Encoder
MR
-
BTCASE
Optional battery
Case Battey
(for absolute position
detection system)