Toshiba Tosvert VF-S15 Instruction Manual page 58

 SINK (Negative)/ SOURCE (Positive) logic connection
(When an external power supply is used)
The P24 terminal is used to connect to an external power supply or to separate a terminal from other input
or output terminals.
<Examples of connections when an external power supply is used>
Slide switch SW1 : PLC side
Sink (Negative) logic
2
24V
DC
Common
Output
24V
DC
Input
Common
Programmable
controller
Note 5) Do not shut down the external power supply on ahead when VIA terminal is used as logic input
24V
DC
P24
SW1:PLC side
F
OUT
NO
Inverter
terminal by external power supply in SINK logic connection. It could cause unexpected result as
VIA terminal is ON status.
Slide switch SW1 : PLC side
Source (Positive) logic
24V
Input DC
Output
Common
24V
DC
Output
Common
Input
Programmable
controller
B-12
E6581926
F
SW1:PLC side
24V
DC
P24
OUT
NO
Inverter
Input
Output