Function Block Diagram - Mitsubishi Electric MELSERVO MR-J2S- A Instruction Manual

1. FUNCTIONS AND CONFIGURATION

1.2 Function block diagram

The function block diagram of this servo is shown below.
(1) MR-J2S-350A or less
Servo amplifier
(Note2)
Power NFB MC
L
1
supply
3-phase
L
2
200 to
L
3
230VAC,
1-phase
230VAC or
1-phase
100to120VAC
L
11
L
21
Note 1. The built-in regenerative brake resistor is not provided for the MR-J2S-10A(1).
Regenerative brake option
P
DS RA
CHARGE
Fan
(MR-J2S-200A or more)
Control
circuit
power
supply
Regenerative
brake
Base amplifier
Pulse
input
Model position
control
Model
position
Actual position
control
A/D
CN1A CN1B
D I/O control
Analog
Servo on
(2 channels)
Start
Failure, etc.
2. For 1-phase 230VAC, connect the power supply to L
L is not provided for a 1-phase 100 to120VAC power supply.
3
C D
(Note1)
Current
detector
Regene-
lamp
rative
TR
Voltage
Overcurrent
detection protection
Model speed
control
Virtual
motor
Model
speed
Actual speed Current
control control
RS-232C
RS-422 D/A
I/F
CN3
1 - 2
Dynamic
brake
Current
detection
Virtual
encoder
Model
torque
Analog monitor
(2 channels)
Controller
RS-422/RS-232C
,L and leave L open.
1 2 3
Servo motor
U U
V V
M
W W
B1
Electro-
magnetic
B2
brake
Encoder
MR-BAT
Optional battery
(for absolute position
detection system)