2.2
Block Diagrams
2.2.1
SGD7S-R70A, -R90A, and -1R6A
L1
Varistor
Main
circuit
L2
power
L3
supply
-
1
-
2
-
L1C
Varistor
Control
power
L2C
supply
2.2.2
SGD7S-2R8A
L1
Varistor
Main
circuit
L2
power
L3
supply
-
1
-
2
-
L1C
Varistor
Control
power
L2C
supply
Voltage
Relay
sensor
drive
Control
+
power
−
supply
Status display
CN3
Digital Operator
Relay
Voltage
drive
sensor
Control
+
power
−
supply
Status display
CN3
Digital Operator
2.2.1 SGD7S-R70A, -R90A, and -1R6A
B1/
+
B2
B3
+
−
Temperature
Gate drive
Voltage
Gate drive
sensor
overcurrent protection
sensor
Processor
(PWM control, position/
speed calculations, etc.)
CN7
Computer
Safety function signals
B1/
+
B2
B3
+
−
Temperature
Gate drive
Voltage
Gate drive
sensor
overcurrent protection
sensor
Processor
(PWM control, position/
speed calculations, etc.)
CN7
Computer
Safety function signals
2.2 Block Diagrams
Servomotor
U
V
M
W
Dynamic
brake circuit
Current
sensor
ENC
CN2
CN5
Analog monitor
Analog
voltage
output
converter
CN1
Encoder divided
pulse output
I/O signals
I/O
DeviceNet
Module
Feedback
Module
CN8
Servomotor
U
V
M
W
Dynamic
brake circuit
Current
sensor
ENC
CN2
CN5
Analog
Analog monitor
voltage
output
converter
CN1
Encoder divided
pulse output
I/O
I/O signals
DeviceNet
Module
Feedback
Module
CN8
2-11
2