Software Lock - Hitachi L2002 Instruction Manual

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
Code Symbol
15 SFT
Valid for inputs:
Required settings:
Notes:
•
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).
Input
Function Name
State
Software Lock ON
OFF
C001, C002, C003, C004,
C005
B031 (excluded from lock)
Description
The keypad and remote programming devices
are prevented from changing parameters
The parameters may be edited and stored
Example (requires input configuration—see
page 3–47):
SFT
L 5 4
See I/O specs on page 4–6.
3 2 1 PCS