Toshiba VF-S15 Instruction Manual page 57

 Connection of SINK (Negative) logic/SOURCE (Positive) logic
(When the inverter's internal power supply is used)
Current flowing out turns control input terminals on. These are called sink logic terminals.
The general used method in Europe is source logic in which current flowing into the input terminal turns it
on.
Sink logic is sometimes referred to as negative logic, and source logic is referred to as positive logic.
Each logic is supplied with electricity from either the inverter's internal power supply or an external power
supply, and its connections vary depending on the power supply used.
Sink/source logic can be switched by slide switch SW1.
<Examples of connections when the inverter's internal power supply is used>
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.ctiautomation.net - Email: info@ctiautomation.net
Slide switch SW1 : Sink side
Sink (Negative) logic
24V
Output
F
CC
Common
24V
Common P24
Input
OUT
NO
CC
Note 4
Programmable
Inverter
controller
Note 4: Be sure to connect NO and CC terminals for Sink logic.
Be sure to connect P24 and OUT terminals for Source logic.
Slide switch SW1 : Source side
Source (Positive) logic
DC
Input
DC
Output
Programmable
controller
B-11
E6581611
24V
DC
Common P24 Input
Output F
24V
DC
Output
P24
OUT
Note 4
Input
NO
CC
Common
Inverter
2