SMC Networks LECSN-T Series - 1.2 Function block diagram

1. FUNCTIONS AND CONFIGURATION
1 - 3
1.2 Function block diagram
The function block diagram of this servo is shown below.
(1) LECSN2-T5, T7, T8
Model position
Current
control
Actual
position
control
Actual
speed
control
Virtual
motor
Virtual
encoder
L11
L21
Cooling fan
(Note 3)
Encoder
N-C D
L3
L2
L1
Dynamic
brake
circuit
Pow er factor improving
DC reactor
Current
detection
Overcurrent
protection
Voltage
detection
(Note 2)
Pow er
supply
MCMCCB
Base
amplifier
STO
circuit
CN5
USB
USB
Personal
computer
D/A
Analog monitor
(2 channels)
Position
command
input
CN3
Servo amplifier
U
V
W
U
V
W
P3 P4
Diode
stack
Relay
P+
+
+
B
RA
24 V DC
B1
B2
Battery
(for absolute position
detection system)
CN4
STO
sw itch
Model speed Model torque
M
CN2
CN8
Control
circuit
pow er
supply
Model
position
control
Model
speed
control
I/F Control
Servo motor
CHARGE
lamp
Regene-
rative
TR
Current
encoder
Digital I/O
control
Regenerative
option
U U
U
Step-
down
circuit
Electromagnetic
brake
(Note 1)
(Note 4)
CN2L
External encoder
Network module
Controller of
other makes
SLOT
driver
lock
LEC-MR-BAT6V1SET-A
Do not use it.
Upper side
card