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Using Intelligent Input Terminals
Operations
and Monitoring
4–14
Software Lock
When the terminal [SFT] is turned on, the data of all the parameters and functions except
the output frequency 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 B31 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:
C01, C02, C03, C04, C05
Required settings:
B31 (excluded from lock)
Notes:
•
When the [SFT] terminal is turned on, only the
output frequency can be changed.
•
Software lock can be made possible also for the
output frequency by B31.
•
Software lock by the operator is also possible
without the [SFT] terminal being used (B31).
Example:
FW
SFT
See I/O specs on page 4–5.
P24
123L 45
Technologies Inc.
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