Mr-J2S- A4 Servo Amplifier; Function Block Diagram - Mitsubishi Electric MELSERVO-J2-Super Series Supplementary Instructions Manual

2. MR-J2S- A4 SERVO AMPLIFIER
2.MR-J2S- A4 SERVO AMPLIFIER

2.1 Function block diagram

The function block diagram of this servo is shown below.
(1) MR-J2S-200A4 or less
Servo amplifier
NFB MC
L
Power
supply
L
3-phase
380 to
L
480VAC
Circuit
protector
24
24VDC
power
supply
0V
Analog
(2 channels)
Regenerative option
P
Diode
Thyristor
stack
1
Regene-
2
rative TR
CHARGE
3
lamp
Cooling fan
L
11 Control
power
supply
L
21
Base
amplifier
Position
command
input
Model position
control
Model
position
Actual position
control
A/D
I/F
CN1A CN1B
D I/O control
Servo on
Start
Failure, etc.
C D
Current
detector
Voltage
Overcurrent
detection
protection
Virtual
motor
Model speed
control
Model
Model torque
speed
Actual speed Current
control control
RS-232C
RS-422 D/A
CN3 CN
Controller
RS-422/RS-232C
2 - 1
U
V
W
Dynamic brake
option
Current
detection
Virtual
encoder
MR-BAT
Optional battery
(for absolute position
detection system)
Analog monitor
(2 channels)
Servo motor
U
V
M
W
B1
Electro-
magnetic
B2
brake
Encoder