Hitachi SJ100 - Manual (Page 136)

SJ100 Inverter
Oper
ations
and Monitor
ing
4–19
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, C_06
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).
1 2 3 4 5 6 L P24
Example (requires input configuration—see
page
3–34 ):
See I/O specs on page 4–6 .
SFT