Mitsubishi Electric FR-V500 Series Instruction Manual page 21

Connection diagram, encoder cable,
PU connector
4) Sink logic type and source logic type
• In sink logic, a signal switches on when a current flows from the corresponding signal input terminal.
Terminal SD is common to the contact input signals. Terminal SE is common to the open collector output
signals.
• In source 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 is common to the open collector output
signals.
Current flow concerning the RUN signal
when sink logic is selected
Sink logic
Current
STF
R
STR
R
SD
Inverter
RUN
SE
When using an external power supply for transistor output
• Sink logic type
Use terminal PC as a common terminal to prevent a
malfunction 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 a
power supply in parallel in the outside of the inverter.
Doing so may cause a malfunction due to
undesirable current.)
AY40 type
transistor
output module
STF
1
STR
2
9
9
10
24VDC
Sink connector
DC input (sink type)
<Example : AX40>
1
R
R
9
24VDC
Inverter
24VDC
(SD)
PC
SD
Current flow
Current flow concerning the RUN signal
when source logic is selected
Source logic
PC
Current
STF
R
STR
R
Inverter
RUN
SE
• Source logic type
Use terminal SD as a common terminal to prevent a
malfunction caused by undesirable current.
AY80 type
transistor
output module
9
1
2
10
18
Source
connector
DC input (source type)
<Example : AX80>
1
R
R
9
24VDC
Inverter
PC
24VDC
STF
(SD)
STR
SD
Current flow