System Operation
Copyright © 2008-2011 Eaton Corporation. All Rights Reserved.
IPN 997-00012-63C August 2011
39
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
3
Check that all battery parameters are set to the correct values. See Batteries Configuration
on page
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
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:
Enabled
End Voltage:
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
).
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
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
) 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
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
Содержание SC100
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