Run
Mode
Edit
✘
✔

3–26

“B” Group: Fine Tuning Functions

Software Lock Mode

Configuring

Drive Parameters

 

 

The software lock function keeps personnel from accidentally changing parameters in the inverter memory. Use B_31 to select from various protection levels.

The table below lists all combinations of B_31 option codes and the ON/OFF state of the [SFT] input. Each Check ✔ or Ex ✘ indicates whether the corresponding parameter(s) can be edited. The Standard Parameters column below shows access is permitted for some lock modes. These refer to the parameter tables throughout this chapter, each of which includes a column titled Run Mode Edit as shown to the right. The marks (Check ✔ or

Ex ✘) under the “Run Mode Edit” column title indicate whether access applies to each parameter as defined in the table below. In some lock modes, you can edit only F_01 and the Multi-speed parameter group that includes A_20, A220, A_21–A_35, and A_38 (Jog). However, it does not include A_19, Multi-speed operation selection. The editing access to B_31 itself is unique, and is specified in the right-most two columns below.

B_31

[SFT]

Standard Parameters

F_01 and

 

B_31

Multi-Speed

 

Lock

Intelligent

 

 

 

 

 

 

 

 

 

 

 

Mode

Input

Stop

Run

Stop & Run

Stop

 

Run

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

00

OFF

✔

Run mode

✔

✔

 

✘

 

 

 

edit access

 

 

 

 

 

 

 

 

 

 

 

 

 

ON

✘

✘

✘

✔

 

✘

 

 

 

 

 

 

 

 

01

OFF

✔

Run mode

✔

✔

 

✘

 

 

 

edit access

 

 

 

 

 

 

 

 

 

 

 

 

 

ON

✘

✘

✔

✔

 

✘

 

 

 

 

 

 

 

 

02

(ignored)

✘

✘

✘

✔

 

✘

 

 

 

 

 

 

 

 

03

(ignored)

✘

✘

✔

✔

 

✘

 

 

 

 

 

 

 

 

NOTE: Since the software lock function B_31 is always accessible, this feature is not the same as password protection used in other industrial control devices.