Hitachi SJ300-037HFE 사용자 설명서

Using Intelligent Input Terminals

Oper

ations

a

nd Moni

tor

ing

The [AT] terminal operates in conjunction with parameter setting A005 to determine the analog 
input terminals that are enabled for current or voltage input. Setting A006 determines whether 
the signal will be bipolar, allowing for a reverse direction range. Note that current input signal 
cannot be bipolar and cannot reverse direction (must use [FW] and [RV] command with current 
input operation). The following table shows the basic operation of the [AT] intelligent input. 
Please refer to 

 for more information on bipolar input 

configuration, and the operating characteristics of analog inputs.

16

AT

Analog Input 
Voltage/current 
Select

ON

• With A005 = 00, [AT] will enable 

terminals [OI]–[L] for current input,
4 to 20mA

• With A005=01, [AT] will enable termi-

nals [O2]–[L] for voltage input

OFF

Terminals [O]–[L] are enabled for voltage 
input (A005 may be equal to 00 or 01) in 
this case

C001, C002, C003, C004, 
C005, C006, C007, C008

A001 = 01
A005 = 00 / 01
A006 = 00 / 01 / 02

Notes: 
• Be sure to set the frequency source setting 

A001=01 to select the analog input terminals.

5

3

1

7

6

4

2

8

FW

TH

PLC

CM1

P24

CM1

See I/O specs on page 

Example: (Default input configuration 
shown—see page 

. Jumper position 

shown is for –xFU/-xFR models; for –xFE 
models, see page 

.)

AT