Omron OMNUC G User Manual page 28

1-4 System Block Diagrams
1
R88D-GN20H-ML2
Terminals
L1
L2
L3
FUSE
L1C
L2C
15V
GR
G1
VCC1
E5V
±VCC
G2
Cooling fan
1-7
~
+
~
~
−
+
~
~
−
SW power
Relay
supply
Main circuit
drive
control
Internal
control
MPU & ASIC
power
supply
Position, speed, and torque processor,
PWM control
Control I/O interface
CN1 control I/O connector
Regene-
Voltage
Gate drive
rative
detection
control
MECHATROLINK-II
interface
CN6A CN6B
connector connector
MECHATROLINK-II
communications line
Terminals
B1
B3
Internal regeneration resistor
B2
TH
Current
detection
Display/
setting circuits
±S
Encoder RS
communications
485
interface
+ E5V
EG
RS-232
+ BAT
interface
G
CN3
connector
RS-232
computer
U
V
W
GR