Eaton SC300 - Reverse Battery Detection

System Operation
Copyright © 2007-2018 Eaton Corporation. All Rights Reserved.
IPN 997-00012-03 B2 Issue B2 July 2018
77
Reverse Battery Detection
If Reverse Battery Detection is enabled and a battery is connected with the incorrect polarity, the
SC300 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 an
IOBGP Input / Output board. Any of the mid-point monitoring analog inputs used for Reverse
Battery Detection are not available for MPM or QPM (see details on page 70).
► To enable Reverse Battery Detection
1 Before the batteries are connected to the dc power system, connect the mid-point monitoring
sense wires to the battery sides of the battery fuses/disconnect devices (leave the
fuses/disconnect devices open). Refer to the dc power system Installation and Operation
Guide.
 There are four mid-point monitoring analog inputs on an IOBGP Input / Output board (for four
battery fuses/disconnect devices). Up to 20 additional battery fuses/disconnect devices can be
connected if additional IOBGP Input / Output boards are connected. Refer to the dc power system
Installation and Operation Guide for details on how to connect additional IOBGP Input / Output
boards 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 Setting
Status 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 online
help for details.
3 On DCTools/web, go to Alarms > Alarm States table, and check the Wrong Battery Polarity
alarm is enabled.
4 If necessary, expand the table and enable the Wrong Battery Polarity alarm.
Wrong Battery Polarity Alarm
If Reverse Battery Detection is connected and enabled, the SC300 will activate a Wrong Battery Polarity
alarm if it detects that one or more of the batteries are connected with the wrong polarity.