Mitsubishi Electric MELSERVO-J4 Series Instruction Manual page 27

400 V class
■MR-J4-350GF4(-RJ) or less
Servo amplifier
MCCB MC
L1
U
L2
Power
supply *1
U U
L3
L11
L21
STO
switch
Position
command
CN1A
Controller or
servo amplifier
*1 Refer to the following for the power supply specification.
Page 30 Servo amplifier standard specifications
*2 Servo amplifiers MR-J4-200GF4(-RJ) or more have a cooling fan.
*3 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 MR-
J3 servo amplifiers.
*4 This is for MR-J4-_GF4-RJ servo amplifier. MR-J4-_GF4 servo amplifier does not have CN2L connector.
*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.
Power factor improving Regenerative
DC reactor *5 option
P3 P4 *3 P+
Diode
stack
Relay
+
Charge
lamp
*2
Cooling fan
Control
+
circuit
power
STO
supply
circuit
Base
amplifier
Model Model
input
position speed
control control
Model position Model speed Model torque
Actual Actual
position speed
control control
I/F Control
CN1B
Controller or
servo amplifier
C D N-
Dynamic
brake
circuit
Current
Regene-
detector
rative
TR
Voltage Current
Overcurrent
detection detection
protection
Virtual
encoder
Virtual
motor
Current
control
USB D/A
CN5
Personal
Analog monitor
computer
(2 channels)
USB
1 FUNCTIONS AND CONFIGURATION
Servo motor
U U
V V
M
W W
B1
RA
Electromagnetic
B
24 V DC
brake
B2
Encoder
Step-
down
circuit
Battery
(For absolute position
detection system)
External encoder
*4
CN3
Digital I/O
control
1.2 Function block diagram
1
25