Sgd7S-470A And -550A - YASKAWA SGD7S Product Manual

2.2.7

SGD7S-470A and -550A

Varistor
L1
Main
circuit
L2
power
supply
L3
1
2
Varistor
L1C
Control
L2C
power
supply
CN11
Option Module
Voltage
Thyristor
sensor
drive
Control
+
power
−
supply
Status display
CN12 CN3
Option Module Digital Operator
2.2.7 SGD7S-470A and -550A
B1/ +
B2
+
−
Overheat/overcurrent
protection
Voltage
Temperature
Gate drive
sensor
sensor
Processor
(PWM control, position/
speed calculations, etc.)
CN7
Computer
2.2 Block Diagrams
Fan 1 Fan 2 Fan 3
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
I/O signals
CN6A
MECHATROLINK-III
I/F
communications
CN6B
CN8
Safety function signals
2
2-15