>> P.330
TechnicalInformationAlarmfunctions1.Detectionofdetectordisconnectionandshort-circuiterrorsDisconnectionofandshortcircuitsto0VofthephaseAandphaseBsignallinesfromthelinearscaleaswellasothersimilarerrorsaredetected.2.Detectionofexcessresponsespeedofdetectorfeed(over-speed)Thefeedspeedofthelinearscale(detector)exceedingthemaximumfeedspeedaswellasothersimilarerrorsaredetected.3.DetectionofinputsignalerrorsTheamplitudevoltage,DCvoltage,orphasedifferenceofthephaseAandphaseBsignalsfromthelinearscalebeingoutsideofthecorrespondingallowablerangeaswellasothersimilarerrorsaredetected.4.DropinlinevoltageThelinevoltagesuppliedtothelinearscale,PSU,andotherdevices(particularlydevicesthatuseaDCpowersupply)droppingbelowtheallowablerangeisdetectedasanerror.5.DetectionofmomentarypowerfailuresAmomentarypowerfailureorvoltagedropgreaterthantheallowablerangeoccurringinthepowersupplythatisbeingsuppliedtothePSU,counter,orotherdevice(devicesthatuseanACpowersupply)isdetectedasanerror.6.DetectionofscaleerrorsErrorsthatoccurinsidethelinearscalearedetected.7.DetectionofdetectorcircuiterrorsErrorscausedbytheincrementalcountorabsolutecountinabsolutelinearscalesaredetected.8.DetectionofCPUerrors(detectionofinternalerrors)Forlinearscales,counters,andotherdevicesthatuseCPUs,theCPUstoppingoperatingnormallyisdetectedasanerror.Thealarmfunctionsvaryaccordingtotheproduct.Fordetails,seethealarmfunctionsavailablewitheachproduct.Alsonotethattheallowablerangesusedtodetectalarmsvaryaccordingtotheproduct.7-53
| < 
| 
> | 
>>
