36 SM-Applications Modules & Motion Processors User Guide
Issue Number: 4
Setting this parameter to 1 will initiate an immediate save of all non-volatile Second
Processor data. This consists of the P/Q/T/U PLC register sets and optionally menu 20
(depending upon the setting of Pr
81.21)
Setting this parameter to 1 signals that all non-volatile data of the Second Processor will
be automatically saved upon an under voltage (UU) trip of the drive
If set to 1, menu 20 will be saved/restored along with other non-volatile parameters
upon a save request (Pr
xx.19=1) or power-down save (Pr xx.20=1). If menu 20 is to be
restored on power-up the user must ensure that this parameter is saved in the drive
before powering down.
Since menu 20 is a global drive menu, only one option fitted to the drive should be used
to store and restore menu 20, therefore if more than one Second Processor is fitted to
the drive
only one should have this parameter set otherwise menu 20 will not be
restored correctly on power-up.
Pr 81.19 Save Request
Access RW Range 0/1
Default 0 Update Rate 100ms
Apps Apps Lite Apps Plus Lite V2 ST Plus ST Indexer
Note that this will also cause a reset of the module and this parameter will return back to
zero automatically. Also if the drive is tripped, it will be reset. Menu 81 will not be saved.
Pr 81.20 Enable “UU trip” Save
Access RW Range 0/1
Default 0 Update Rate Immediate
Apps Apps Lite Apps Plus Lite V2 ST Plus ST Indexer
Note that when a ‘UU’ save occurs the Second Processor will be reset.
Apps Apps Lite Apps Plus Lite V2 ST Plus ST Indexer
Pr 81.21 Enable menu 20 save and restore
Access RW Range 0/1
Default 0 Update Rate Immediate
Apps Apps Lite Apps Plus Lite V2 ST Plus ST Indexer
Unlike other setup parameters, parameters Pr
81.20 and Pr 82.21 are not cached,
which means a change to the parameter takes immediate effect.
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