General-Purpose Analog Input Terminal (O Terminal); General-Purpose Analog Input Terminal (Oi Terminal); General-Purpose Analog Input Terminal (O2 Terminal) - Hitachi NT2021XA Instruction Manual

(4) General-purpose analog input terminal (O terminal)

You can use the O terminal as a general-purpose analog input terminal. By referencing the data stored in variable "XA (0)", the data
(ranging from 0 to 10000) input via the O terminal can be fetched.
Switching the O terminal to a general-purpose analog input terminal does not require any special setting. Even when the O terminal is
used to input frequency commands, the O terminal can also function as a general-purpose analog input terminal. Note that the
handling of data fetched via the O terminal depends on the settings made by the [O]-[L] input functions (A011 to A015).
The figure below shows the relationship between the input voltage and the value to be fetched (when the settings of functions "A011" to
"A015" are the defaults).

(5) General-purpose analog input terminal (OI terminal)

You can use the OI terminal as a general-purpose analog input terminal. By referencing the data stored in variable "XA (1)", the data
(ranging from 0 to 10000) input via the O terminal can be fetched.
Switching the OI terminal to a general-purpose analog input terminal does not require any special setting. Even when the OI terminal is
used to input frequency commands, the OI terminal can also function as a general-purpose analog input terminal. Note that the
handling of data fetched via the OI terminal depends on the settings made by the [OI]-[L] input functions (A101 to A105).
The figure below shows the relationship between the input current and the value to be fetched (when the settings of functions "A101" to
"A105" are the defaults).

(6) General-purpose analog input terminal (O2 terminal)

This terminal function is available for only SJ700/L700/SJ700B series. WJ200 series does not correspond.
You can use the O2 terminal as a general-purpose analog input terminal. By referencing the data stored in variable "XA (2)", the data
(ranging from -10000 to 10000) input via the O2 terminal can be fetched.
Switching the O2 terminal to a general-purpose analog input terminal does not require any special setting. Even when the O2 terminal
is used to input frequency commands, the O2 terminal can also function as a general-purpose analog input terminal. Note that the
handling of data fetched via the O2 terminal depends on the settings made by the [O2]-[L] input functions (A111 to A115).
The figure below shows the relationship between the input voltage and the value to be fetched (when the settings of functions "A111" to
"A115" are the defaults).
Chapter 3
10000
XA (0)
0
0
10000
XA (1)
0
0 4
XA (2)
10000
-10
0
-10000
3-5
Interface with the Inverter
Input voltage (V) across
10
O and L terminals
Input current (mA) across
OI and L terminals
20
Input voltage (V) across
O2 and L terminals
10