6 Local Control Panel
(continued)
C232-302-401/402/403/404-603 / C232/EN M/A23 6-21
Automatic return
The automatic return function prevents the change-enabling function from remaining
activated after a change of settings has been completed. Once the set return time
(menu tree ‘Par/Conf/LOC’) has elapsed, the change-enabling function is automatically
deactivated, and the display switches to a Measured Value Panel corresponding to the
current system condition. The return time is restarted when any of the control keys is
pressed.
Forced return
The return described above can be forced from the local control panel by first pressing
the ‘up’ key and then holding it down while pressing the CLEAR key.
Note: It is important to press the ‘up’ key first and release it last in order to avoid
unintentional deletion of stored data.
Even when the change-enabling function is activated, not all parameters can be
changed. For some settings it is also necessary to disable the protective function (menu
tree: Par/Func/Glob/MAIN, “Protection enabled”). Such settings include the
configuration parameters, by means of which the device interfaces can be adapted to the
system. The following entries in the ”Change” column of the address list (see appendix)
indicate whether values can be changed or not:
"on": The value can be changed even when the protective function is enabled.
"off": The value can only be changed when the protective function is disabled.
"-": The value can be read out but cannot be changed.
The device is factory-set so that the protective function is disabled.
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