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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
Function Name 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
Valid for inputs: C001~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).
Example (requires input configuration—
see page 3–49):
See I/O specs on page 4–6.
5 4 3 2 1 L
PCS
P24
SFT
4
−
21
Operations and
Monitoring