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Message ID: 2040     Entry time: Friday, January 03, 2020, 13:15 Author: Adam Newsome  Category: Crane  Type: Repair  Module:   Target/Number:   Subject: Target Hall Crane PLC Module/Battery Replacement

The Target Hall Crane bridge and trolley motion was lost after a period of the crane having power disconnected over winter holidays. This is reported in the following e-log: https://elog.triumf.ca/TIS/RH-ISAC/2039. This issue is a duplicate of what happened in 2019 at this time: https://elog.triumf.ca/TIS/RH-ISAC/1845 It was determined from troubleshooting via PLC indicator lights that the memory battery had died during the power-off time, and because of this, the program stored was lost. Note that this is an anomaly - the battery should have lasted much longer than the shutoff duration of ~2 weeks. The SLC500 module was replaced with a spare, which contained a new battery. The old SLC500 module is still functioning but the battery has been removed (spares will be ordered) - this module is stored in a cabinet drawer in the control room. It will need to be re-programmed if re-installed as the program was lost. The original program titled TargetHallCrane.RSS was downloaded to the module. The crane was tested in local mode and determined to be functioning. The following links are resources for resolving this issue: https://isaccontrols.wiki.triumf.ca/index.php/ISAC_Target_Hall_Crane https://isaccontrols.wiki.triumf.ca/index.php/SHUTDOWN_2015_Tasks#ISAC_Target_Hall_Crane_Controls_DM_-_Completed

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