01/02 AWB8230-1415GB
Programmable digital inputs
1to8
83
Software protection (SFT)
When you activate the digital input configured as SFT, the confi-
gured parameters cannot be overwritten unintentionally.
X With PNU b031, specify whether software protection will also
apply to the frequency setting under PNU F001.
X Then, program one of the digital inputs 1 to 8 as SFT by setting
the corresponding PNU (C001 to C008) to 15.
Under PNU b031, you can specify whether you want to use the
normal or extended parameter setting features in RUN mode. If
you enter the value 10 under PNU b031, further parameters are
available, which you can modify in RUN mode. These additional
parameters are marked in the “Extended” column with a “j”.
Figure 74: Digital input 3 configured as SFT (software protection)
SFT
FWD
P24FW3
Adjustable in RUN mode
Normal Extended
– j
PNU Name Adjustable in RUN mode Value Function WE
Normal Extended
b031 Software
parameter
protection
– j 00 Software protection through SFT input; all functions
inhibited
01
01 Software protection through SFT input;
input through PNU F001 possible
02 Software protection without SFT input; all functions
inhibited
03 Software protection without SFT input; input through
PNU F001 possible
10 Extended parameters adjustable in RUN mode
h
There is, however, an alternative method of software
protection available which does not require an SFT input.
For this, enter the value 02 or 03 under PNU b031 depen-
ding on whether software protection should also apply to
the frequency setting under PNU F001 or not.
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