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2. DESIGN
2
−
5
2.3 External Circuit Design
As to the ways to design the external circuits of the motion system, this section
explains the method and instructions for designing the power supply and safety
circuits, etc.
(1) Sample system circuit design for motion control
RST
NFB
A173UHCPU/
A172SHCPUN/
A172SENC
PX0
PX1F
TRA
COM
200VAC
200VAC
FG
LG
EMG
EMG. COM.
BRAKE
OUT
BRAKE
COM
PX0
PX1F
TRA
COM
Ra2
Ra1
EMG
EMG
OFF
ON
MC
MC
SK
+24V
24G
Ra1
A171SHCPUN
3-phase
200/220VAC
24VDC
power
supply
CPU module
Operation Ready
Servo normal output
(ON when servo is
normal, OFF on
occurrence of alarm)
*1
*2
Motion control
input for 8 axes
Yn