Hitachi L2002 Software Lock Mode

Run

Mode

Edit

Lo Hi

✘ ✔

3–39

L2002 Inverter

Software Lock Mode

The software lock function keeps personnel from accidentally changing parameters in the inverter memory. Use B031 to select from various protection levels.

The table below lists all combinations of B031 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 lists Low and High level access 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 two marks (Check ✔ or Ex ✘) under the “Lo Hi” subtitle indicate whether Low-level and/or High-level access applies to each parameter as defined in the table below. In some lock modes, you can edit only F001 and the Multi-speed parameter group that includes A020, A220, A021–A035, and A038 (Jog). However, it does not include A019, Multi-speed operation selection. The editing access to B031 itself is unique, and is specified in the right-most two columns below.

B031	[SFT]	Standard Parameters		F001 and		B031
				Multi-Speed
Lock	Intelligent
Mode	Input	Stop	Run	Stop & Run	Stop		Run	Configuring ParametersDrive
00	ON	✘	✘	✔	✔		✘
	OFF	✔	Run mode	✔	✔		✘
			edit access
	ON	✘	✘	✘	✔		✘
01	OFF	✔	Run mode	✔	✔		✘
			edit access
02	(ignored)	✘	✘	✘	✔		✘
03	(ignored)	✘	✘	✔	✔		✘
10	(ignored)	✔	High-level	✔	✔		✔

NOTE: Since the software lock function B031 is always accessible, this feature is not the same as password protection used in other industrial control devices.