Eaton RM3-400-0330 Installation And Operation Manual

Contents

RM3-400/410/420 Series Installation and Operation Guide56 Copyright © 2007-2010 Eaton Corporation. All Rights Reserved.IPN 997-00012-62E June 20104 SC200 only: In DCTools/Web go to: RXP. Copy the I/O board serial number fromthe RXP Devices table to the I/O Board to Serial Number Mapping table to map anIOB Number to the I/O board (overwrite existing serial number). All alarms will clear.Procedure completeBattery Mid-point Monitoring (String Fail) Alarm (SC200 only)Use the following procedure if a String Fail alarm is generated.Step 1 - Identify the faulty battery string1 Press any button on the SC200 to silence the alarm.2 Connect to the SC200 using DCTools/Web. Go to Batteries > Mid-point Monitoring.3 Click + to expand the Mid-point Monitoring table to identify which battery stringhas failed.Step 2 - Check cell/monobloc voltages1 Use a suitable voltmeter to measure the individual cell/monobloc voltages.Measure on the cable lugs and inter-connecting bars so that loose connectionswill also be detected.2 The faulty or poorly connected cell/monobloc has the voltage with the greatestdeviation from the average.Step 3 - Check cell/monobloc terminals1 Check the terminal connections of the cell/monobloc are correctly tightened andclean. Refer to the battery manufacturer's instructions for correct terminal torquesettings.2 In DCTools/Web go to Batteries > Mid-point Monitoring. Click Clear String Fail.3 If the alarm clears then the fault is fixed. No further action is required.Step 4 - Service or replace faulty cell/monobloc (if required)1 If the alarm is still present then follow the battery manufacturer’s instructions onservicing or replacing the faulty cell/monobloc.2 After the faulty cell/monobloc has been serviced or replaced clear the alarm (seeStep 3).Procedure complete