Sgd7S-590A And -780A; Sgd7S-R70F, -R90F, And -2R1F - YASKAWA SGD7S Product Manual

2.2.8

SGD7S-590A and -780A

Varistor
L1
Main
circuit L2
power
supply
L3
1
2
Varistor
L1C
Control
L2C
power
supply
CN11
Option Module
2.2.9

SGD7S-R70F, -R90F, and -2R1F

Main Varistor
L1
circuit
L2
power
supply
Varistor
L1C
Control
L2C
power
supply
CN11
Option Module
Voltage Thyristor
sensor drive
Control
+
power
−
supply
Panel Operator
CN12
Option Module Digital Operator
Voltage Relay
sensor drive
+ Control
power
−
supply
Panel Operator
CN12
Option Module Digital Operator
B1/ +
B2
+
−
Overheat/overcurrent
protection
Voltage
Temperature
Gate drive
sensor
sensor
Processor
(PWM control, position/
speed calculations, etc.)
CN3 CN7
Computer
B1/ + B2
+
−
+
−
Voltage Gate Temperature
sensor drive sensor
Processor
(PWM control, position/
speed calculations, etc.)
CN3 CN7
Computer
2.2 Block Diagrams
2.2.8 SGD7S-590A and -780A
Fan 1 Fan 2 Fan 3 Fan 4
Servomotor
U
V
W
Dynamic
brake circuit
Current
sensor
CN2
CN5
Analog monitor
Analog
voltage
output
CN1
converter
Reference pulse input
Encoder divided
pulse output
Reference voltage
A/D
input
I/O
I/O signals
CN8
Safety function signals
Servomotor
U
V
W
Dynamic
brake circuit
Gate drive Current
overcurrent sensor
protection
CN2
CN5
Analog
Analog monitor
voltage
output
converter
CN1
Reference pulse
input
Encoder divided
pulse output
Reference
A/D
voltage input
I/O
I/O signals
CN8
Safety function signals
M
ENC
2
M
ENC
2-17