EnerSys Alpha Cordex CXC HP - Watchdog Alarm; Typical System Configuration

Cordex®CXCHPControllerSoftwareManual|3-Introduction
• Fourcurrentsensors
•
12FormCrelayoutputs
SeetheReference sectionforafulllistofpowerandADIOmodulesthataresupportedbythecontroller.
3.2.2. Watchdog alarm
TheSystem Fail Relay activates(de-energized)whenthereisamajorinternalfailureifthecontrolleris
notrunningproperly.Theunitwouldattempttoreset.
Therelayisenergizedwhenthecontrollersoftwarestartsup.Therelayremainsenergizedduringnormal
operation.Ifthecontrollerlosespower,orreboots,therelayisde-energized,whichcanbeusedto
indicateanalarmcondition.
Whenthehardwarewatchdogtimerisnotupdatedbythecontrollersoftwareformorethan30seconds,
thecontrollerisdeterminedtobenotrunningnormally.After30seconds,therelaywillbede-energized,
andtheunitwouldreset.
3.2.3. Typical system configuration
Thecontrollerisascalablesoftwareplatformthatallowsmultiplesystemstobecreatedandmanagedby
onecontroller.Theuserinterfaceisorganizedaroundsysteminventorysoyouonlyseethesystemsthat
youhavecreatedandyoucanmanagethemindependently.BoththewebinterfaceandtheLCDprovide
asummaryofallsystemsmonitoredbythecontrolleraswellascontrollerandalarminformation.
ThefigurebelowshowsaspecificDCpowersystemwiththefollowingelements:
0350058-J0 Rev AL Page 33