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

2.2 Block Diagrams

2.2.7 SGD7S-470A and -550A

2.2.7

SGD7S-470A and -550A

Main
circuit
power
upply
Control
L2C
power
upply
2-16
Vari tor
L1
L2
L
1
2
Voltage
en or
Vari tor
L1C
+
−
Panel Operator
CN11 CN12
Option Module Option Module
B1/
+
−
Thyri tor
drive
Voltage
en or
Control
power
upply
CN CN7
Digital Operator Computer
+
B2
Fan 1 Fan 2
Overheat/overcurrent
Dynamic
protection
brake circuit
Temperature Current
Gate drive
en or en or
Analog
voltage
converter
Proce or
(PWM control, po ition/
peed calculation , etc.)
A/D
I/O
CN8
afety function ignal
Fan
ervomotor
U
V
M
W
ENC
CN2
CN5
Analog monitor
output
CN1
Reference pul e input
Encoder divided
pul e output
Reference voltage
input
I/O ignal