SC300 Handbook
74
Copyright © 2007-2018 Eaton Corporation. All Rights Reserved.
IPN 997-00012-03 B2 Issue B2 July 2018
5
From the Web go to
Batteries
>
Battery Time Remaining,
or use the SC300 keypad to go to
Battery
. Set
End Voltage
to the voltage per cell when the battery is regarded as fully discharged.
In general set the end voltage to the same value as for the LVD Disconnect Voltage (see LVD
Configuration on page 52). End Voltage must be at least 0.02V/Cell above the Minimum System
Voltage (per cell). The Minimum System Voltage is viewable on the web at Control Processes. It
is not configurable from web.
6
Enable
Battery Current Limit
(see details on page 28).
► To Characterize the Battery
1
Either:
•
Manually start a Characterization:
On the SC300 go to:
Battery
>
Characterize
>
Start
.
On DCTools/web go to:
Battery
>
Battery Time Remaining.
Click
Characterize
.
If "Characterize" is not present on the SC300 or the "Characterize" button is inactive in Web,
then check all configuration settings. In Web, the hover text will indicate why the characterization
cannot start.
•
Or, use
Automatic Characterization to start a characterization automatically when all
conditions are correct and stable
:
On the web, to:
Battery
>
Battery Time Remaining.
Set
Automatic Characterization
to
Enabled
and set
Automatic Characterization
Delay
to the required time that the conditions must be stable.
2
The characterization process will take at least 10 hours, depending on the load current.
During characterization the rectifier output voltage is varied to maintain a constant power
discharge.
3
When the characterization has finished, the
Characterization Result
will be
Updated
.
If any other Characterization Result is shown, refer to BTR Operation on page 75.
4
The rectifiers will return to float voltage and the battery will start to recharge. If required, start
a manual Equalize (see details on page 31) to reduce the battery recharge time.
5
Restore any changed LVD operation back to the original settings. If no longer required, disable
Battery Current Limit
.
Battery Time Remaining
is now operational. During any battery discharge an estimate of time
remaining will be displayed.