Mitsubishi Electric FR-E540 K-EC Series Instruction Manual page 33

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. When terminals PC-SD are used as a 24VDC power supply, you cannot
prevent misoperation caused by leakage current.)
(5) How to use the STOP signal
The following connection example shows how to self-hold the start signals (forward
rotation, reverse rotation).
Use Pr. 180 to Pr. 183 (input terminal function selection) to assign the STOP signal.
Stop
Forward
rotation
Reverse
rotation
AY40 type
transistor
output module
Inverter
1
STF
2
STR
3
RH
4
RM
5
RL
6
RES
9
PC
DC24V
10
SD
RL
(STOP)
MRS
RES
SD
AM
PC
STF
STR
(Wiring example for source logic)
25
INSTALLATION AND WIRING
DC24V
(SD)