Hitachi WJ Series

Chapter 9 Inverter Functions
9-2-6
■ (Example 3) Using the [AT] terminal to switch between [Ai1] voltage input and
the remote operator potentiometer [POT]
■ (Example 4) Using the [AT] terminal to switch between [Ai2] current input and
the remote operator potentiometer [POT]
.
Potentiometer [POT]
Remote operator with potentiometer
OPE-SR/OPE-SRmini
Potentiometer (1 to 2 kΩ)
Control circuit terminal block
L
Ai2
H
Ai1
AT
 Connect a device such as an analog output module with a voltage
operating range of 0 to 10 VDC to [Ai1].
 Assign the [AT] input terminal to one of the input terminals [1] to
[7] and set the "[AT] selection [A005]" parameter to "02".
[A005]
02
Any parameter from
[C001] to [C007]
16
[AT] terminal
OFF: [Ai1] voltage input
ON: Remote operator
potentiometer [POT]
 The default state is 0 to 10 VDC to represent values from zero to
the maximum frequency (Hz).

For more details regarding how to change the relationship
between the analog input value and the frequency command
value, refer to "9.15.3 Adjusting the Analog Input".
 Connect a device such as an analog output module with a
current operating range of 4 to 20 mA to [Ai2].
 Assign the [AT] input terminal to one of the input terminals [1]
to [7] and set the "[AT] selection [A005]" parameter to "03".
[A005]
03
Any parameter from
[C001] to [C007]
16
[AT] terminal
OFF: [Ai1] current input
ON: Remote operator
potentiometer [POT]
 The default state is 4 to 20 mA to represent values from zero to
the maximum frequency (Hz).

For more details regarding how to change the relationship
between the analog input value and the frequency command
value, refer to "9.15.3 Adjusting the Analog Input".
.
Potentiometer [POT]
Remote operator with potentiometer
OPE-SR/OPE-SRmini
Control circuit terminal block
L
Ai2
H
Ai1
AT