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Hitachi L100 User Manual

Page 105

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Using Intelligent Input Terminals

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4–14

Software Lock

When the terminal [SFT] is turned on, the data of all the parameters and functions except
the output frequency 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 B31 to select whether the output frequency is excluded from the lock
state or is locked as well.

Option

Code

Terminal

Symbol

Function Name

Input

State

Description

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:

C01, C02, C03, C04, C05

Required settings:

B31 (excluded from lock)

Notes:

When the [SFT] terminal is turned on, only the
output frequency can be changed.

Software lock can be made possible also for the
output frequency by B31.

Software lock by the operator is also possible
without the [SFT] terminal being used (B31).

Example:

FW

SFT

See I/O specs on page 4–5.

P24

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Technologies Inc.

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