Hitachi L100 Benutzerhandbuch

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L100 Inverter
Oper
ations
and Monitor
ing
4–17
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 B_31) 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 B_31 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:
C_01, C_02, C_03, C_04, 
C_05
Required settings:
B_31 (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 B_31.
Software lock by the operator is also possible 
without the [SFT] terminal being used (B_31).
Example (requires input configuration— 
see page 
):
See I/O specs on page 
1
2
3
4
5
L
P24
SFT