Hitachi SJ700-2 instruction manual External analog input setting O, OI, and O2, Related code

Chapter 4 Explanation of Functions

4.2.11 External analog input setting (O, OI, and O2)

The inverter has the following three types of external analog input terminals:

O-L terminal: 0 to 10 V

OI-L terminal: 4 to 20 mA

O2-L terminal: -10 to 10 V

Related code

A005: [AT] selection

A006: [O2] selection

C001 to C008: Terminal [1] to [8] functions

The table below lists the settings of the external analog input terminals.

Item	Function	Data		Description
	code
		00	Switching between the O and OI	Turning on the AT terminal enables the OI-L terminal.
			terminals with the AT terminal	Turning on the AT terminal enables the O-L terminal.
		01	Switching between the O and O2	Turning on the AT terminal enables the O2-L terminal.
			terminals with the AT terminal	Turning on the AT terminal enables the O-L terminal.
		(02)	(Valid only when the OPE-SR is used)	Turning on the AT terminal enables the pot on
[AT]	A005		Switching between the O terminal and	OPE-SR terminal.
			the control with the AT terminal	Turning on the AT terminal enables the O-L terminal.
selection
		(03)	(Valid only when the OPE-SR is used)	Turning on the AT terminal enables the pot on
			Switching between the OI terminal and	OPE-SR terminal.
			the control with the AT terminal	Turning on the AT terminal enables the OI-L terminal.
		(04)	(Valid only when the OPE-SR is used)	Turning on the AT terminal enables the pot on
			Switching between the O2 terminal	OPE-SR terminal.
			and the control with the AT terminal	Turning on the AT terminal enables the O2-L terminal.
		00	Using the O2 terminal independently
		01	Using the O2 terminal for auxiliary frequency command (nonreversible) in addition to the O and
[O2]	A006		OI terminals
selection		02	Using the O2 terminal for auxiliary frequency command (reversible) in addition to the O and OI
			terminals
		03	Disabling the O2 terminal

Note that whether frequency commands are input to the O2-L terminal and whether the motor operation is reversible depend on the combination of settings of functions "A005" and "A006" and whether function "16" (AT) is assigned to an intelligent input terminal as shown in the table below.

When the motor operation is reversible, the inverter operates the motor in a reverse direction if the sum of the frequencies specified by the main frequency and auxiliary frequency commands is less than 0 (even when the forward operation [FW] terminal is on). Even when no wire is connected to the 02 terminal, reverse operation of the motor may occur and prolong the acceleration time if the output voltage fluctuates near 0 V.

			AT		Whether to input an auxiliary	Reversible/
	A006	A005		Main frequency command	frequency command
			terminal			nonreversible
					(via the O2-L terminal)
		00	OFF	O-L terminal	No input	Nonreversible
	00,03		ON	OI-L terminal	No input
		01	OFF	O-L terminal	No input
When the AT			ON	O2-L terminal	No input	Reversible
		00	OFF	O-L terminal	Input
function is
		(Example 1)	ON	OI-L terminal	Input	Nonreversible
assigned to an	01
			OFF	O-L terminal	Input
intelligent input		01
			ON	O2-L terminal	No input	Reversible
terminal
		00	OFF	O-L terminal	Input
	02	(Example 2)	ON	OI-L terminal	Input	Reversible
		01	OFF	O-L terminal	Input
			ON	O2-L terminal	No input
When the AT	00	－	－	O2-L terminal	No input	Reversible
	01	－	－	Addition of signals on O-L and	Input	Nonreversible
function is not				OI-L terminals
assigned to any	02	－	－	Addition of signals on O-L and	Input	Reversible
intelligent input				OI-L terminals
terminal
	03	－	－	Addition of signals on O-L and	No input	Nonreversible
				OI-L terminals

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