EnerSys Alpha Cordex CXC HP User Manual

Cordex®CXCHPControllerSoftwareManual|20-Maintainingthecontroller
isundergoingmaintenance,andcanalsobeusedtoinhibitthealarmsummaryrelaysduringthe
maintenance.
Atitssimplest,Maintenance Mode providesanalarm,whichhasthebehaviorinherenttocontroller
alarms.Itcanbemappedtoarelay,ormonitoredviathewebinterface,LCD,orSNMP.Thiscanbeused
tosignalotherusersthatsomemaintenanceisbeingperformedonthesystem.UsingtherelayorSNMP
interfaces,externalsystemscanbenotifiedofthemaintenance.
Maintenance Mode alsoprovidesanoptiontoInhibit Alarm Summary Relays During Maintenance.
Ifauserchoosestoenablethisfeature,anyrelayswhichareinuseasAlarmSummaryRelayswillbe
inhibitedduringmaintenance.Thisallowsausertodomaintenancewhichmaycausealarmswithoutthe
AlarmSummaryRelaysbeingactivated.RelaysthatarenotmappedtoAlarmSummaryRelayswillnot
beaffectedandwillbehaveasusual.OnecaveatisthatifthesamerelayismappedtobothanAlarm
SummaryRelayandtheMaintenanceModealarmitself,thatparticularrelaywillnotbeinhibited,asitis
possiblethatexternalsystemswouldbeusingthisrelaytodeterminewhetherthemaintenancemodeis
active.
WhilethesystemisnotinMaintenanceMode,theStatus ofthefeaturewillbeInactive.Userscanhave
themaintenancemodetriggeredautomatically,ortheycanstartitmanuallybyabuttonpress.Touse
theautomatictrigger,theTrigger Source mustbemappedtoadigitalinput,customdatavalue,orother
booleansystemvalue.IfMaintenanceModeisstartedautomaticallyusingthistrigger,thestatusofthe
featurewillbeStarted by Trigger Alternatively,theusercanselectManually Start Maintenance Mode
tostartthemodemanually.
MaintenanceModemustbestoppedinthesamewayitwasstarted.Ifitwasstartedbytrigger,Manually
Stop Maintenance Mode willbedisableduntilthetriggerisfalseandMaintenanceModeisonceagain
Inactive.IfMaintenanceModeisstartedmanuallyviabuttonpress,thestatuswillbeManually Started.
NotethatifMaintenanceModeisalreadystartedbythetrigger,thebuttontostartitmanuallywillbe
disabled.Similarly,ifMaintenanceModeisstartedmanually,anychangestothetriggerstatuswhile
MaintenanceModeisManually Started willbeignoreduntilthemodehasbeenmanuallystoppedvia
buttonpress.
OntheMaintenance Mode page,thereisatabletitledRelay Behavior During Maintenance.Thistable
willshowalltherelaysinthesystemandtheirexpectedbehaviorwhenMaintenanceModeisactive.If
Inhibit Alarm Summary Relays During Maintenance issettoNo,allrelaysinthistableshouldshow
Not Inhibited (Inhibit Disabled).Iftheuserdoeswantrelaystobeinhibitedduringmaintenance,setthe
Inhibit Alarm Summary Relays During Maintenance optiontoYes.Oncethatisdone,therelaytable
willbeupdatedtoshowhowthisaffectseachrelayinthesystem.Mostrelayswillstillbehavenormally,
andsotheirentryinthistablewillreadNot Inhibited.TherelaysthataremappedtotheAlarmSummary
RelayswillreadInhibited (Alarm Summary Relay).IfarelayhasbeenmappedtotheMaintenance
Mode Active alarm,theentrywillreadNot Inhibited (Maintenance Mode Relay).Thesameinformation
isavailableoneachindividualrelaypage.
20.4. Working with logs
Thissectioncoversthefollowing:
0350058-J0 Rev AL Page 191

EnerSys Alpha Cordex CXC HP Specifications

General

Brand	EnerSys
Model	Alpha Cordex CXC HP
Category	Controller
Language	English