Mitsubishi Electronics MR-J2S- B User Manual
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1. FUNCTIONS AND CONFIGURATION
1.2 Function block diagram
The function block diagram of this servo is shown below.
(1) MR-J2S-350B or less
RS-232C
Servo motor
D
C
P
NFB
MC
L
1
L
2
L
3
L
11
L
21
B2
Actual position
control
Actual speed
control
CN2
CON1
MR-BAT
U
V
W
U
V
W
M
B1
(Note 1)
CN1A
CN1B
D/A
CN3
Servo amplifier
Regenerative
TR
TR
CHARGE
lamp
lamp
Current
detector
detector
Dynamic
brake
Electro-
magnetic
brake
magnetic
brake
Encoder
Control
circuit
power
supply
circuit
power
supply
Model position
control
Model speed
control
Virtual
encoder
Virtual
motor
Model
position
position
Model
torque
torque
Current
control
control
Optional battery
(for absolute position
detection system)
(for absolute position
detection system)
Position command
input
input
I/F Control
Controller
or
Servo amplifier
Servo amplifier
or
termination
connector
Analog monitor
(2 channels)
(2 channels)
Personal computer
Model
speed
speed
Current
detection
Overcurrent
protection
Voltage
detection
Base
amplifier
(Note 3) Cooling fan
(Note 2)
Power
supply
Diode
stack
Relay
Regenerative option
Note 1. The built-in regenerative resistor is not provided for the MR-J2S-10B (1).
2. For 1-phase 230V, connect the power supply to L
2. For 1-phase 230V, connect the power supply to L
1
, L
2
and leave L
3
open.
L
3
is not provided for a 1-phase 100 to120V power supply. Refer to section 1.3 for the power supply specification.
3. Servo amplifiers MR-J2S-200B have a cooling fan.