Functiondescription
OperatingManualPNOZms1p
20967EN11
14
4.4.3 Incrementalencoderandproximityswitchononeaxis
Inordertoincreasetheavailability,aproximityswitchandanincrementalencodercanbe
configuredononeaxisforthespeedmonitor.Thatwaythespeedmonitorcanmonitor3
signalsononeaxis:TrackAandtrackBoftheincrementalencoderandtheproximity
switch:
Standstillmonitoring
Standstillisdetectedwhenatleasttwoofthesesignalsfallbelowthestandstillfrequency.
Monitoringforbrokenshearpins
IftheBrokenshearpinmonitoringoptionisactivated,ashearpinbreakisrecognisedif
} bothsignalsoftheincrementalencoderfallbelowthesetstandstillfrequency(stand
still)
and
} theproximityswitchexceedsthesetstandstillfrequency(rotatingshaft).
Therecognisedbrokenshearpinleadstosafecondition(seestatusB2in"Signalstatuses"
tableinChapter8oftheoperatingmanual).Ifindividualormultiplesignalschange,thesafe
conditionisclearedagainasrequired(see"Signalstatuses"table).
Hazardsthatcanarisethroughanautomaticrestartmustbeexcludedwithintheuserpro
gram.