Software lock – Hitachi L300P User Manual
Page 154
Using Intelligent Input Terminals
Oper
ations
a
nd Moni
tor
ing
4–24
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.
Code
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:
C001, C002, C003, C004,
C005
Required
settings:
B031 (excluded from lock)
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).
5
3
1
4
2
FW
TH
PLC
P24
CM1
See I/O specs on page
.
SFT
Example (requires input configuration—
see page