Eaton SC100 - Page 26

SC100 Handbook
20
Copyright © 2008-2011 Eaton Corporation. All Rights Reserved.
IPN 997-00012-63C August 2011
Configuration
Set the following parameters.
Parameter
Description
Where to find:
Voltage
The bus voltage maintained during a Fast Charge. Use
the value recommended by the battery manufacturer.
SC100: Menu >
Configuration > Fast
Charge > Edit
DCTools: Control Processes
> Fast Charge
Voltage Threshold
If the bus voltage drops below this value during an ac
supply failure, then Fast Charge starts when the ac
supply is restored. Fast charge can also be started based
on the Ah Threshold.
DCTools: Control Processes
> Fast Charge
Ah Threshold
If Ah Discharged exceeds this value during an ac supply
failure, then Fast Charge starts when the ac supply is
restored. The threshold is given as a percentage of
installed C10 battery capacity. Fast charge can also be
started based on the Voltage Threshold.
Maximum
Duration
The maximum duration of a Fast Charge. Use the value
recommended by the battery manufacturer.
Recharge
Percentage (%)
The ratio of ampere-hours recharged to the ampere-
hours discharged. Fast Charge stops either when the Ah
recharged equals the Ah discharged x Fast Charge
Recharge Percentage, or after Maximum Duration.
Battery Capacity
Set to the rated 10 hour capacity of the installed battery
strings. Zero means no battery is installed.
SC100: Menu >
Configuration > System >
Edit > Battery Capacity
>Edit
DCTools: Batteries
Reset Battery State
The SC100 monitors battery discharge and maintains a value called Ah Discharged. In a new
SC100 Ah Discharged is set to zero. During operation of the dc power system the value is
increased as the battery is discharged, and reduced as the battery is recharged.
The value of Ah Discharged is used to start the Fast Charge control process. See details on page
19.
► To view current value of Ah Discharged
 In DCTools go to: Batteries.
If a battery or the SC100 is changed, then reset the value of Ah Discharged to zero (when the
battery is fully charged).
► To set the value of Ah Discharged back to zero
 In DCTools go to: Batteries. Click Reset Battery State.
 Any active or pending Fast Charge or Equalize will be cancelled.