Instruction manual

18
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.
z 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.)
• Source logic type
Use terminal SD as a common terminal to prevent a
malfunction caused by undesirable current.
RUN
SE
1
9
R
R
24VDC
24VDC
RUN
SE
1
9
R
R
Inverter
DC input (sink type)
<Example : AX40>
Inverter
DC input (source type)
<Example : AX80>
PC
STF
R
STR
R
Source logic
Current
Source
connecto
r
SD
STF
R
STR
R
Sink logic
Current
Sink connector
Current flow concerning the RUN signal
when sink logic is selected
Current flow concerning the RUN signal
when source logic is selected
1
2
9
10
SD
PC
STR
STF
9
24VDC
24VDC
(SD)
Inverter
AY40 type
transistor
output module
Current flow
9
1
2
10
PC
STF
STR
SD
24VDC
(SD)
24VDC
AY80 type
transistor
output module
Inverter
Current flow