Mitsubishi MR-J4-10A Instruction Manual page 22

1. FUNCTIONS AND CONFIGURATION
(c) MR-J4-11KA(-RJ)/MR-J4-15KA(-RJ)/MR-J4-22KA(-RJ)
Servo amplifier
MCCB MC
L1
(Note 1)
U
L2
Power
supply
U U
L3
L11
L21
STO
switch
command
Analog
(two channel)
Note 1. For the power supply specifications, refer to section 1.3.
2. The MR-J4 servo amplifier has P3 and P4 in the upstream of the inrush current suppression circuit. They are different from P1
and P2 of the MR-J3 servo amplifiers.
3. This is for the MR-J4-_A-RJ servo amplifier. The MR-J4-_A servo amplifier does not have the CN2L connector.
4. Use an external dynamic brake for this servo amplifier. Failure to do so will cause an accident because the servo motor dose
not stop immediately but coasts at an alarm occurrence for which the servo motor does not decelerate to stop. Ensure the
safety in the entire equipment. For alarms for which the servo motor does not decelerate to stop, refer to chapter 8.
5. The power factor improving AC reactor can also be used. In this case, the power factor improving DC reactor cannot be used.
When not using the power factor improving DC reactor, short P3 and P4.
(Note 5) External regenerative
Power factor improving
regenerative option
DC reactor
(Note 2)
P3 P4
Diode
stack Thyristor
+
CHARGE
lamp
Cooling fan
Control
+
circuit
STO
power
circuit
Base
amplifier
Position
Model
input
position
control
Model position
Actual
position
control
A/D
I/F
CN1
DI/O control
Servo-on
Personal
Input command pulse.
computer
Start
Malfunction, etc
resistor or
P+ C N-
Regene-
rative
TR
Voltage
Overcurrent
detection
protection
Virtual
encoder
Model
speed
control
Virtual
motor
Model speed Model torque
Actual
Current
speed
control
control
USB RS-422
CN5 CN3
Controller
Analog monitor
(two channel)
USB RS-422
1 - 5
(Note 4)
External dynamic
brake (optional)
U U
V
Current
encoder
W W
RA
24 V DC
Current
detection
Step-
down
circuit
Optional battery
(for absolute position
detection system)
External encoder
(Note 3)
D/A
CN6
Servo motor
V
M
B1
Electromagnetic
B
brake
B2
Encoder