1 - 2 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 RS-422
11000 1000 80 80 0 0
22000 2000 100 100 0 0
34000 2000 70 60 500 1
4 500 2000 60 70 1000 1
52000 80 80 0 0
62000 1000 80 80 0 0
71000 1000 80 80 0 0
81000 1000 100 100 0 0
1000 1000 100 100 0 0
255 2000 2000 80 80 0 0
1000
No. Position
data Speed Acceleration
time
constant
Deceleration
time
constant Dwell Auxiliary
Point table
Current
control
Speed
control
Position
control
Model adaptive control
Position
command
creation
(Note 3)
L1
L2
L3
MCNFB
(Note 4) Cooling fan
Base
amplifier
CN4
N( )
C
Encoder
Current
detection
L11
L21
U
V
W
Power factor
improving DC
reactor Regenerative
option
MR-J3BAT
P1P2
(Note 2)
Power
supply CHARGE
lamp Regene-
rative
TR
Current
detector
Dynamic
brake
Electro-
magnetic
brake
Servo motorServo amplifier
Optional battery
(for absolute position
detection system)
Overcurrent
protection
Voltage
detection
Control
circuit
power
supply
CN2
P( )
U
V
W
M
Diode
stack
Controller
USB
CN3CN5
CC-Link
USB
Personal
computer
DI/O Control
Servo on
Start
Failure, etc
RS-422
CN1CN6
D
(Note 1)
B2
B1
RA
24VDC
Relay
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 L1, L2 and leave L3 open.
There is no L3 for 1-phase 100 to 120VAC power supply. Refer to section 1.2 for the power supply specification.