Eaton SC300 Operation Handbook

Contents

System OperationCopyright © 2007-2018 Eaton Corporation. All Rights Reserved.IPN 997-00012-03 B2 Issue B2 July 2018 77Reverse Battery DetectionIf Reverse Battery Detection is enabled and a battery is connected with the incorrect polarity, theSC300 will:• Activate a Wrong Battery Polarity alarm, and• Prevent any LVD from connecting. Reverse Battery Detection uses the battery mid-point monitoring (MPM) analog inputs on anIOBGP Input / Output board. Any of the mid-point monitoring analog inputs used for ReverseBattery Detection are not available for MPM or QPM (see details on page 70).► To enable Reverse Battery Detection1 Before the batteries are connected to the dc power system, connect the mid-point monitoringsense wires to the battery sides of the battery fuses/disconnect devices (leave thefuses/disconnect devices open). Refer to the dc power system Installation and OperationGuide. There are four mid-point monitoring analog inputs on an IOBGP Input / Output board (for fourbattery fuses/disconnect devices). Up to 20 additional battery fuses/disconnect devices can beconnected if additional IOBGP Input / Output boards are connected. Refer to the dc power systemInstallation and Operation Guide for details on how to connect additional IOBGP Input / Outputboards to the SC300.2 On DCTools/web, go to Analog Inputs and for each mid-point monitoring analog inputs used(one per battery fuses/disconnect devices) set the following parameters. To change a setting, double-click and select from drop down list or edit the text.Parameter SettingStatus Set to Enable.Name Set to: Battery Polarity Detect 1, Battery Polarity Detect 2, ...Function Set to Reverse Battery Detect.Units Set to Volts.IOB Number Set to 1 for battery fuses/disconnect devices 1-4.Set to 2 for battery fuses/disconnect devices 5-8....IOB AI Number Set to 2 for battery fuses/disconnect devices 1, 5, 9 ...Set to 3 for battery fuses/disconnect devices 2, 6, 10 ......Gain Set to 1.Offset Set to 0.Group Set to 0 unless using Groups in PowerManagerII. See PowerManagerII onlinehelp for details.3 On DCTools/web, go to Alarms > Alarm States table, and check the Wrong Battery Polarityalarm is enabled.4 If necessary, expand the table and enable the Wrong Battery Polarity alarm.Wrong Battery Polarity AlarmIf Reverse Battery Detection is connected and enabled, the SC300 will activate a Wrong Battery Polarityalarm if it detects that one or more of the batteries are connected with the wrong polarity.