4–22

Using Intelligent Input Terminals

Software Lock

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.

Option

Terminal

Function Name

Input

 

 

 

Description

Code

Symbol

State

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

15

SFT

Software Lock

ON

The keypad and remote programming devices

 

 

 

 

are prevented from changing parameters

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OFF

The parameters may be edited and stored

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Valid for inputs:

C001, C002, C003, C004,

Example (requires input configuration—see

 

 

C005, C006

 

page 3–41):

Required settings:

B031 (excluded from lock)

 

 

 

 

 

SFT

 

 

 

 

 

 

 

 

 

Notes:

 

 

 

 

L

6

5

4

3

2

1

PCS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

•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).

See I/O specs on page 4–6.

 

 

Operations and Monitoring