Hitachi CONVENTION 14 instruction manual 4 21

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
Code
Terminal
Symbol FunctionName State Description
ON The keypad and remote programming devices are
prevented from changing parameters
15 SFT Software Lock
OFF The parameters may be edited and stored
Validfor inputs:C001~C005
Requiredsettings B031(excluded from lock)
Notes:
xWhen the [SFT] terminal is turned ON, only the
output frequency can be changed.
xSoftware lock can include the output frequency
by setting B031.
xSoftware lock by the operator is also possible
without the [SFT] terminal being used (B031).
Example (requires input configuration—
seepage 3–49):
See I/O specs on page 4–6.
5 4 3 2 1 L
PCS P24
SFT
421
Operations and
Monitoring
4 21
Operations and
Monitoring