Hitachi L100 사용자 설명서

“B” Group: Fine Tuning Functions

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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 permit-
ted 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.

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.

00

OFF

✔

Run mode 

edit access

✔

✔

✘

ON

✘

✘

✘

✔

✘

01

OFF

✔

Run mode 

edit access 

✔

✔

✘

ON

✘

✘

✔

✔

✘

02

(ignored)

✘

✘

✘

✔

✘

03

(ignored)

✘

✘

✔

✔

✘

✘

✔