Mitsubishi Electric FR-V520-1.5K to 55K Instruction Manual page 21

Connection diagram, PLG cable, PU
connector
4) Sink logic type and source logic type
• The sink logic type is a logic where a signal turns 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 sig-
nals.
• The source logic type is a logic where a signal turns 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 col-
lector 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
Using terminal PC as a common terminal prevents 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 undesir-
able current.)
AY40 type
transistor
output module
1
2
3
4
5
6
9
10
24VDC SD
Sink connector
DC input (sink type)
<Example : AX40>
1
R
R
9
24VDC
Inverter
24VDC
STF (SD)
STR
RH
RM
RL
RES
PC
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 to prevent a malfunc-
tion caused by undesirable current.
AY80 type
transistor
output module
9
1
2
10
17
Source
connector
DC input (source type)
<Example : AX80>
1
R
R
9
24VDC
Inverter
PC
24VDC
STF
(SD)
STR
SD