Related code A001: Frequency source setting
A002: Run command source setting
C001 to C008: Terminal [1] to [8] functions
Related code A001: Frequency source setting
A002: Run command source setting
C001 to C008: Terminal [1] to [8] functions
Related code
b031: Software lock mode selection
C001 to C008: Terminal [1] to [8] functions
Chapter 4 Explanation of Functions

4.2.44 Software lock (SFT) function

The software lock function allows you to specify whether to disable rewriting of the data set for functional items. Use this function to protect the data against accidental rewriting.

You can select the functional items to be locked and the method of locking as described below.

When using an intelligent input terminal for this function, assign function "15" (SFT) to one of the terminal [1] to [8] functions (C001 to C008).

Function code

Data

SFT terminal

Description

 

00

ON/OFF

Disabling rewriting of items other than "b031" (when SFT is on) or

 

enabling rewriting (when SFT is off)

 

 

 

 

 

 

Disabling the rewriting of items other than "b031", "F001", "A020",

 

01

ON/OFF

"A220", "A320", "A021" to "A035", and "A038" (when SFT is on) or

b031

 

 

enabling rewriting (when SFT is off)

02

Disabling the rewriting of items other than "b031"

 

 

03

Disabling the rewriting of items other than "b031", "F001", "A020",

 

"A220", "A320", "A021" to "A035", and "A038"

 

 

 

 

10

Disabling rewriting except in the mode allowing changes during

 

operation

 

 

 

4.2.45 Forcible-operation from digital operator (OPE) function

The forcible-operation function allows you to forcibly enable the inverter operation from the digital operator when the digital operator is not selected as the device to input frequency and operation commands. An intelligent input terminal is used to turn this function on and off.

When the intelligent input terminal to which the forcible-operation function is assigned is off, frequency and operation commands are input from the devices selected by functions "A001" and "A002". When the terminal is on, the device to input frequency and operation commands is forcibly switched to the digital operator.

If the input device is switched while the inverter is operating, the current operation command is canceled and the inverter stops the output. When restarting the inverter operation, turn off the operation command that was to be entered from each input device for safety's sake, and then enter a new operation command.

Item

Function code

Data

Description

Terminal function

C001 to C008

31

OPE: Forcible operation

4.2.46 Forcible-operation from terminal (F-TM) function

The forcible-operation function allows you to forcibly enable the inverter operation via control circuit terminals when the control circuit terminal block is not selected as the device to input frequency and operation commands. An intelligent input terminal is used to turn this function on and off.

When the intelligent input terminal to which the forcible-terminal operation function is assigned is off, frequency and operation commands are input from the devices selected by functions "A001" and "A002". When the terminal is on, the device to input frequency and operation commands is forcibly switched to the control circuit terminal block.

If the input device is switched while the inverter is operating, the current operation command is canceled and the inverter stops the output. When restarting the inverter operation, turn off the operation command that was to be entered from each input device for safety's sake, and then enter a new operation command.

Item

Function code

Data

Description

Terminal function

C001 to C008

51

F-TM: Forcible-terminal operation

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Hitachi SJ700-2 instruction manual Software lock SFT function, Forcible-operation from terminal F-TM function