Instruction manual

Function block diagram Introduction
MELSERVO J2-Super 1 - 3
1.2.2 Servo amplifiers 400V
MR-J2S-200B4 or less
When connecting an optional regeneration brake resistor, always remove the lead from
across the terminals P and D.
S001250C
Fig. 1-2: Block diagram for Servo amplifier MR-J2-Super
L3
L2
L1
PCD
UU
VV
WW
M
I
>
I
>
I
>
CN2CON1
24V DC
EMG
CN1A CN1B
RS-232C
D/A
CN3
24V • L 11
0V • L 21
+
−
Power supply
3-phase, 380–480VAC
Power
supply
24VDC
Fan
Servo amplifier
Regenerative
brake option
Servo motor
Encoder
Electro-
magnetic
brake
Main circuit
Control
circuit
power
supply
Regenerative
brake
Base
amplifier
Voltage
detection
Over-
current
protection
Current
detection
Model position
control
Model speed
control
Actual position
control
Actual speed
control
Current
control
Virtual
motor
Virtual
encoder
I/F Control
Controller
or
servo amplifier
Servo amplifier
or
termination
connector
Analog monitor
(2 channels)
Model torque
Model
position
Model
speed
Personal computer
Optional battery
(for absolute position
detection system)
Position
command
input
MR-BAT