Mitsubishi Electric FR-A520-0.4K-NA Instruction Manual page 30

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 leakage current. (Do not connect terminal SD of the inverter with terminal 0V of
the external power supply.)
EX. A current flows out of
the corresponding signal RUN
R
R
Inverter
AY40 type
transistor output
module
1
STF
2
STR
3
RH
4
RM
5
RL
6
RES
9
PC
10
SD
DC24V
20
INSTALLATION AND WIRING
DC24V
(SD)
RUN
SE