Software Lock - Hitachi L300P Series Instruction Manual

4–24
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.
Opt.
Symbol Function Name
Code
15 SFT Software Lock
C001, C002, C003, C004,
Valid for
C005
inputs:
B031 (excluded from lock)
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
Description
State
ON The keypad and remote programming
devices are prevented from changing
parameters
OFF The parameters may be edited and stored
Example: (Requires input configuration—
see page 3–43. Jumper position shown is
for –xFU/-xFR models; for –xFE models,
see page 4–11.)
TH FW
5
P24 PLC CM1
See I/O specs on page 4–8.
SFT
4 3 2 1