Mitsubishi Electric A800-GF Instruction Manual page 43

Control circuit
NOTE
• Make sure that the jumper connector is installed correctly.
• Never change the control logic while power is ON.
• After changing the jumper connector position, reinstall the control circuit terminal block securely in place.
Sink logic and source logic
• In the 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 the 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 input/output signal
when sink logic is selected
Sink logic
Current
STF
STR
SD
Inverter
• When using an external power supply for transistor output
Sink logic
Use the terminal PC as a common terminal, and perform
wiring as shown below. (Do not connect terminal SD of the
inverter with the terminal 0 V of the external power supply.
When using terminals PC-SD as a 24 VDC power supply,
do not install an external power supply in parallel with the
inverter. Doing so may cause a malfunction in the inverter
due to undesirable currents.)
QY40P type transistor
output unit
Constant
voltage
circuit
42
INSTALLATION AND WIRING
R
R
DC input (sink type)
<Example: QX40>
RUN
TB1
R
R
- TB17
+
SE
24 VDC
Current flow
Inverter
TB1 STF
24 VDC
(SD)
TB2 STR
TB17
PC
TB18
24VDC SD
Current flow
Current flow concerning the input/output signal
when source logic is selected
Source logic
Sink
Current
connector
Inverter
Source logic
Use the terminal SD as a common terminal, and perform
wiring as shown below. (Do not connect terminal PC of the
inverter with the terminal +24 V of the external power
supply. When using terminals PC-SD as a 24 VDC power
supply, do not install an external power supply in parallel
with the inverter. Doing so may cause a malfunction in the
inverter due to undesirable currents.)
QY80 type transistor
output unit
Constant
voltage
circuit
PC
STF
R
STR
R
DC input (source type)
<Example: QX80>
TB1
RUN
R
TB18
-
+
SE
24 VDC
Current flow
Inverter
PC
TB1
STF
TB2 STR
TB17
Fuse
TB18 SD
Current flow
Source
connector
R
24 VDC
(SD)