Mitsubishi Electric FR-F500 Series Instruction Manual page 31

4) 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 is common to the open collector
output signals.
Current
STF
STR
SD
• 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 undesirable
current.)
R
R
AY40 type Inverter
transistor
output module
1 STF
STR
2
9
PC
9
10
SD
24VDC
Current flow
20
INSTALLATION AND WIRING
Inverter AX40
RUN 1
SE 9
24VDC
24VDC
(SD)
R
R
2