Function Block Diagram - Mitsubishi Electric MELSERVO-J3 Series Manual

1. FUNCTIONS AND CONFIGURATION

1.1.2 Function block diagram

The function block diagram of this servo is shown below.
(1) MR-J3-350T or less MR-J3-200T4 or less
Servo amplifier
Diode
stack
NFB MC
L
1
(Note 2)
L
2
Power
supply
L
3
L
11
L
21
Note 1. The built-in regenerative resistor is not provided for the MR-J3-10T (1).
2. For 1-phase 200 to 230VAC, connect the power supply to L
There is no L for 1-phase 100 to 120VAC power supply. Refer to section 1.2 for the power supply specification.
3
3. For the case when 2 stations are occupied. When 1 station is occupied, the point table ends at No.31.
4. Servo amplifiers MR-J3-70T or greater have a cooling fan.
Power factor
improving DC Regenerative
reactor option
P( ) C
P P
1 2
Relay
CHARGE
lamp
(Note 4) Cooling fan
Control
circuit
power
supply
Base
amplifier
Current
control
No. Position
data
1 1000
Speed
2 2000
control
3 4000
4 500
5 1000
6 2000
Position
7 1000
control
8 1000
1000
(Note 3)
255 2000
Position
command
creation
CN6
DI/O Control
Servo on
Start
Failure, etc
N( )
D
(Note 1)
Current
detector
Regene-
rative
TR
Voltage Overcurrent
detection protection
Point table
Acceleration Deceleration
Speed
time time
constant constant
1000 80 80
2000 100 100
2000 70 60
2000 60 70
2000 80 80
1000 80 80
1000 80 80
1000 100 100
1000 100 100
2000 80 80
CN1
Personal
computer
USB
CC-Link
, L and leave L open.
1 2 3
1 - 2
U
V
W
Dynamic
brake
RA
24VDC
Current
detection
Dwell Auxiliary
0 0
0 0
500 1
1000 1
0 0
0 0
0 0
0 0
MR-J3BAT
0 0
0 0
Optional battery
(for absolute position
detection system)
USB RS-422
CN5 CN3
Controller
RS-422
Servo motor
U
V
M
W
Electro-
B1
magnetic
brake
B2
Encoder