Mitsubishi Electric 800 Series Hardware Instruction Manual page 51

(The output signals may be used in either the sink or source logic independently of the jumper connector position.)
NOTE
• Make sure that the jumper connector is installed correctly.
• Never change the control logic while power is ON.
 Sink logic and source logic
• In the sink logic, a signal turns ON when a current exits 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 the source logic, a signal turns ON when a current enters 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 input/output signal
when sink logic is selected
Sink logic
Current
Inverter
• When using an external power supply for transistor output
50
2. INSTALLATION AND WIRING
2.6 Control circuit
Jumper connector Jumper connector Jumper connector
STF
R
STR
R
SD
DC input (sink type)
<Example: QX40>
RUN
TB1
R
- + TB17
SE
24 VDC
Current flow
SINK
For sink logic
Current flow concerning the input/output signal
when source logic is selected
Source logic
Sink
Current
connector
R
SOURCE
PC
STF
R
STR
R
Inverter
DC input (source type)
<Example: QX80>
RUN TB1
R
TB18
-
+
SE
24 VDC
Current flow
Source
connector
R