Block Diagrams; Sgd7W-1R6A And -2R8A - YASKAWA SERVOPACK Sigma 7W Series Product Manual

2.2

Block Diagrams

This section gives the block diagrams of SERVOPACKs with the HWBB function. For the Σ-7C
SERVOPACKs, a block diagram is given for the Servo Section only.
Parts that are indicated by
2.2.1

SGD7W-1R6A and -2R8A

L1 Vari tor
Main
L2
circuit
power
L
upply
1
2
Voltage
en or
Vari tor
L1C
Control
power
L2C
upply
are unique to the SERVOPACKs with the HWBB function.
B1/ +
B2 B
+
−
CHARGE
Relay
drive
Temperature Voltage
Gate drive
en or en or
Control
+
power
−
upply
tatu di play
CN
Digital Operator Computer

2.2.1 SGD7W-1R6A and -2R8A

Dynamic
brake circuit
Gate drive Gate drive
Current Current
overcurrent overcurrent
en or en or
protection protection
Analog
Proce or
voltage
(PWM control, po ition/
converter
peed calculation , etc.)
CN7
afety function ignal

2.2 Block Diagrams

ervomotor
Fan
for axi A
UA
VA
M
WA
Dynamic
brake circuit
ENC
UB
VB
M
WB
ENC
ervomotor
for axi B
CN2A
CN2B
CN5
Analog monitor
output
CN1
I/O
I/O ignal
CN6A
MECHATROLINK-III
I/F
communication
CN6B
CN8
2
2-7