2.2 Block Diagrams
2.2.1 SERVOPACKs without Built-in Servomotor Brake Control
2-8
2.2
Block Diagrams
This section provides a block diagram of the interior of the SERVOPACKs.
2.2.1
SERVOPACKs without Built-in Servomotor Brake Control
SGD7S-1R9D, -3R5D, -5R4D, -8R4D, -120D, and -170D
*
If using these terminals, contact your YASKAWA representative.
Servomotor
Fan
L1
B1
B2
B3
L2
L3
24 V
24 V
0 V
0 V
1
2
U
V
W
D1
D2
D3
CN3
CN11
CN12
CN7
CN2
ENC
CN5
M
CHARGE
-
+
+
-
-
-
Overheat protector
Overcurrent protector
CN8
±12 V
I/O
I/F
CN1
CN6A
CN6B
Dynamic
brake circuit
Processor
(PWM control, position/
speed calculations, etc.)
Control
power
supply
Digital Operator
Computer
Option Module
Option Module
Current
sensor
Gate drive
Analog
voltage
converter
Encoder divided
pulse output
Analog monitor
output
Voltage
sensor
Voltage
sensor
Varistor
Relay
drive
Safety function signals
Main
circuit
power
supply
Control
power
supply
+
−
EtherCAT
communications
I/O signals
Status display
The DC power supply (24 VDC)
is not provided by Yaskawa.
+
−
+
−
CN101
CN101
CN103
CN102
CN115
CN201
*