Hitachi SJ300-037HFE 사용자 설명서

SJ300 Inverter

Oper

ati
ons

and Monitor

ing

When the terminal [SFT] is turned ON, the data of all the parameters and functions (except the 
output frequency, depending on the setting of B031) is locked (prohibited from editing). When 
the data is locked, the keypad keys cannot edit inverter parameters. To edit parameters again, 
turn OFF the [SFT] terminal input.

Use parameter B031 to select whether the output frequency is excluded from the lock state or is 
locked as well.

15

SFT

Software Lock

ON

The keypad and remote programming 
devices are prevented from changing 
parameters

OFF

The parameters may be edited and stored

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

B031 (excluded from lock)

Notes: 
• When the [SFT] terminal is turned ON, only 

the output frequency can be changed.

• Software lock can include the output 

frequency by setting B031.

• Software lock by the operator is also possible 

without the [SFT] terminal being used 
(B031).

5

3

1

7

6

4

2

8

FW

TH

PLC

CM1

P24

CM1

See I/O specs on page 

.

Example: (Requires input configuration—
see page 

. Jumper position shown is 

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

.)

SFT