Mitsubishi FR-E540-0.4K-EC Instruction Manual page 37

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. Terminal SE common to the
open collector output signals.
PC
Current
STF
STR
• When using an external power supply for transistor output, use terminal SD as a
common to prevent misoperation caused by undesirable current.
3) Sink logic type
• In this logic, a signal switches on when a current flows out of the corresponding
signal input terminal.
Terminal SD is common to the contact input signals. Terminal SE common to the
open collector output signals.
Current
STF
STR
SD
• Current flow related to
R
R
AY-80
PC
9
STF
1
STR
2
SD
10
• Current flow related
R
R
24
INSTALLATION AND WIRING
RUN signal
Inverter
RUN
SE
24VDC
Inverter
24VDC
(SD)
Inverter
to RUN signal
RUN
SE
24VDC
AX80
1
R
R
9
AX40
1
R
R
9
2