Toshiba VF-S9 manual Setting of contact input terminal function, Connection with transistor output

E6580757

■Setting of contact input terminal function

Terminal	Title	Function	Adjustment range		Default setting
symbol
-		Always-active function selection		0	(Without assigned
				function)
F		Input terminal selection 1 (F)		2	(Forward run)
R		Input terminal selection 2 (R)	0-51	3 (Reverse run)
			(See Section 11
RST		Input terminal selection 3 (RST)		10 (Reset)
			table of input termi-
S1		Input terminal selection 4 (S1)	nal functions)	6	(Preset-speed 1)
S2		Input terminal selection 5 (S2)		7	(Preset-speed 2)
S3		Input terminal selection 6 (S3)		8	(Preset-speed 3)

Note: The function that has been selected using (always-active function selection parameter) is al- ways activated.

■Connection method

1) A-contact input (Sink logic)

Inverter

Input terminal

CC

A-contact switch

★ This function is activated when the input	6
terminal and CC (common) are short-

circuited. Use this function to specify forward/reverse run or a preset-speed operation.

2) Connection with transistor output

Inverter

Input terminal

Programmable controller

★Operation can be controlled by connecting the input and CC (common) terminals to the output (no-contacts switch) of the programmable controller. Use this function to specify forward/reverse run or a preset- speed operation. Use a transistor that operates at 24Vdc/5mA.

*Interface between programmable controller and inverter

When operation is to be controlled using a programmable controller of the open-collector output type, if the programmable controller is turned off with the inverter on, the difference in control power potential will cause wrong signals to be sent to the inverter as shown in the diagram below. Be sure to provide an interlock so that the programmable controller cannot be turned off when the inverter is on.

F-7