MITSUBISHI ELECTRIC MR-E- A/AG - Manual (Page 19)

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1. FUNCTIONS AND CONFIGURATION
1.2 Function block diagram
The function block diagram of this servo is shown below.
Regenerative brake option
Servo amplifier
Current
detector
CHARGE
lamp
Servo motor
Regenerative
TR
(Note 1)
Regenerative brake Base amplifier Voltage
detection
Overcurrent
protection
Encoder
Dynamic
brake
Control
power
supply
Fan
(MR-E-200A only) Electro-
magnetic
brake
Current
detection
Model position
control
Model speed
control
Pulse
input
Model
position
Actual position
control
Actual speed
control
Current
control
Model torque
Virtual
motor
Virtual
encoder
Model
speed
D I/O control
Servo on
Start
Failure, etc.
Controller
Analog monitor
(2 channels)
RA DS
D C P
NFB MC
L 1
L
2
L
3
CN1 CN3
RS-232C
E2
I/F
CN2
U
V
W
U
V
W
SM
E1
RS-232C D/A
Power
supply
3-phase
200 to
230VAC,
1-phase
230VAC
(Note 2)
(Note 3)
(Note 3)
(Note 3)
(Note 3)
(Note 3) (Note 3)
Note:1. The built-in regenerative brake resistor is not provided for the MR-E-10A/20A.
2. The single-phase 230VAC can be used for MR-E-70A or smaller servo amplifier.
Connect the power supply cables to L
1 and L 2 while leaving L 3 open.
3. The control circuit connectors (CN1, CN2 and CN3) are safely isolated from main circuit terminals
(L
1 , L 2 , L 3 , U, V, W, P, C and D).