System Operation
Copyright © 2008-2011 Eaton Corporation. All Rights Reserved.
IPN 997-00012-63C August 2011
2 Check that all battery strings are fully charged.
When a battery is fully charged, the Battery Charge State will be Float and Ah Discharged
will be zero. See Batteries on page 36.
3 Check that all battery parameters are set to the correct values. See Batteries Configuration
on page 37.
4 Check that the load current is at least 2% of the C10 capacity of the batteries (Battery
Capacity) and 150% of the Battery State Threshold. See Batteries Configuration on page 37.
If the load current is less than 10% of the C10 capacity of the batteries, then Battery
Characterization will take longer than 10 hours.
5 In DCTools go to: Control Processes > Battery Characterization. Set the following parameters:
Battery Characterization
Enable:
Set to the voltage per cell when the battery is regarded
as fully discharged.
In general, use the same value as for the LVD Disconnect
Voltage (see LVD Configuration on page 29). End Voltage
must be at least 0.02V/Cell above the Minimum System
Voltage per cell.
The Minimum System Voltage is viewable in DCTools
at Control Processes > Voltage Control. It is not
configurable.
1 Enable Battery Current Limit (see details on page 15).
2 Click Battery Characterize Start to start a characterization. A Characterizing Battery alarm and
an In Discharge alarm will be displayed. The Maximum Remaining Time field will show the
approximate time to the end of the characterization (initially the value will be N/A).
If the "Battery Characterize Start" button is inactive in DCTools, then check all
configuration settings. The hover text will indicate why the characterization cannot start.
The characterization process will take approximately 10 hours, depending on the load current
and battery condition. During characterization the rectifier output voltage is varied to
maintain a constant power discharge.
3 When the characterization has finished successfully:
the Characterization state will change to Enabled (But Battery Not Charged)
the Battery Characterization Table will show the characterization data (percentage
capacity against cell voltage).
the rectifiers will return to float voltage and the battery will start to recharge. If
required, start a manual Equalize (see details on page 18) to reduce the battery recharge
time.
If the characterization was not successful a Battery Characterization Fail or a Battery
Characterization Error alarm will be active. See Alarm Descriptions on page 63.
4 Restore any changed LVD operation back to the original settings. If no longer required,
disable Battery Current Limit.
During any subsequent battery discharge the SC100 will display an estimate of the Battery Time
Remaining and the State of Charge (SOC). See Battery Time Remaining on page 37.
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