Hitachi SJ300-037HFE 用户手册

SJ300 Inverter

Oper

ati
ons

and Monitor

ing

Intelligent terminals [1], [2], [3], [4], [5], [6], [7], and [8] are identical, programmable inputs 
for general use. The input circuits can use the inverter’s internal (isolated) +24V field supply 
(P24) to power the inputs. The input circuits connect internally to [PLC] as a common point. To 
use the internal supply to power the inputs, use the jumper as shown. Remove the jumper to use 
an external supply, or to interface to a PLC system (or other) that has solid state outputs. If you 
use an external supply or PLC system, its power return must connect to the [PLC] terminal on 
the inverter to complete the input circuit.

The following four input configurations are available to interface the inverter inputs to switches 
or the outputs of another system, such as a PLC.

5

3

1

7

6

4

2

8

Input circuits

+ –

24VDC

common

SJ300 inverter

5

3

1

PLC

CM1

7

6

4

2

8

Input circuits

+ –

24VDC

common

SJ300 inverter

5

3

1

7

6

4

2

8

Input circuits

+ –

24VDC

common

External

 power supply

SJ300 inverter

5

3

1

7

6

4

2

8

Input circuits

+ –

24VDC

common

SJ300 inverter

External

 power supply

P24

PLC

CM1

P24

PLC

CM1

P24

PLC

CM1

P24

+

–

+

–

Jumpered for sinking 

inputs (default for

–xFE models)

Jumpered for sourcing 

inputs (default for

–xFU/–xFR models)