3.3 Block Diagrams
L1
B1/
B2
B3
L2
L3
1
2
L1C
L2C
U
V
W
CN502
CN11
CN12
CN7
CN2
ENC
CN5
M
CHARGE
-
+
-
-
CN8
I/O
I/F
CN1
CN6A
CN6B
Processor
(PWM control, position/
speed calculations, etc.)
Control
power
supply
Digital Operator
Computer
Option Module
Option Module
Current
sensor
Dynamic
brake circuit
Servomotor
Gate drive
Analog
voltage
converter
Encoder divided
pulse output
Analog monitor
output
I/O signals
Voltage
sensor
Voltage
sensor
Varistor
Varistor
Relay
drive
Gate drive
overcurrent protection
Temperature
sensor
Safety function signals
Main
circuit
power
supply
Control
power
supply
Fieldbus
communications
Status display
+
-
+
-
Fig. 17: Block Diagram - SGD7S-R70A, -R90A, and -1R6A
L1
B1/
B2
B3
L2
L3
1
2
L1C
L2C
U
V
W
CN502
CN11
CN12
CN7
CN2
ENC
CN5
M
CHARGE
-
+
-
-
CN8
I/O
I/F
CN1
CN6A
CN6B
Processor
(PWM control, position/
speed calculations, etc.)
Control
power
supply
Digital Operator
Computer
Option Module
Option Module
Current
sensor
Dynamic
brake circuit
Servomotor
Gate drive
Analog
voltage
converter
Encoder divided
pulse output
Analog monitor
output
I/O signals
Voltage
sensor
Voltage
sensor
Varistor
Varistor
Relay
drive
Gate drive
overcurrent protection
Temperature
sensor
Safety function signals
Main
circuit
power
supply
Control
power
supply
Fieldbus
communications
Status display
+
-
+
-
Fig. 18: Block Diagram - SGD7S-2R8A
SGD7S-R70A, -R90A, and
-1R6A
SGD7S-2R8A
Sigma-7 Series SERVOPACKs
Selecting a SERVOPACK
Block Diagrams
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