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How to use the control circuit terminals
2) Source logic type
• In this logic, a signal switches on when a current flows into the corresponding signal
input terminal.
Terminal PC is common to the contact input signals. For the open collector output
signals, terminal SE is a positive external power supply terminal.
• Connecting the 0V terminal of the
external power supply for transistor
output to terminal SD prevents a
malfunction caused by an undesirable
current.
Power
supply
STF
STR
PC
AX80
24VDC
RUN
SE
1
9
R
R
Inverter
R
R
AY80
transistor
output module
9
1
2
10
PC
STF
STR
SD
Inverter
24VDC
(SD)
24VDC
Current flow