Instruction manual

23
2
INSTALLATION AND WIRING
4) Sink logic type
•
The sink logic type is a logic where a signal turns on when a current flows out of the corresponding
signal input terminal.
Terminal SD is common to the contact input signals. Terminal SE is common to the open collector output
signals.
•
When using an external power supply for transistor output, use terminal PC as a common to prevent
misoperation caused by undesirable current. (Do not connect terminal SD of the inverter with terminal
0V of the external power supply. When using terminals PC-SD as a 24VDC power supply, do not install
the power supply in parallel outside the inverter. Doing so may cause misoperation due to leakage
current.)
AX40Inverter
R
R
RUN
SE
1
9
24VDC
R
STF
STR
SD
Current
R
9
10
24VDC
SD
PC
24VDC
(SD)
AY40 type
transistor output
module
Inverter
1
2
STR
STF
Current flow