SC200 Handbook
Copyright © 2007-2011 Eaton Corporation. All Rights Reserved.
IPN 997-00012-50H November 2011
Configuration
It will take at least 10 hours to characterize a battery.
When a battery is characterized it is discharged. The bus voltage will gradually
reduce to the battery end voltage. Ensure that this will not affect the operation of
any equipment connected to the dc power system.
Use the following procedure to configure Battery Time Remaining for the first time, or if a
previously characterized battery is changed.
Battery Characterization is not necessary if a previously saved battery characterization data file is
available. Refer to Characterization Data Management on page 63. Only use characterization data
for an identical type and size of battery.
► To configure Battery Time Remaining
1 Check that all battery strings are connected and all LVD contactors (if any) are connected.
During a battery characterization, LVD contactor disconnection is inhibited. If any LVD
contactor is configured to connect during a battery discharge then set it to Manual Connect to
prevent operation during the battery characterization.
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 56.
3 Check that all battery parameters are set to the correct values. See Batteries Configuration
on page 56.
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 56.
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 Either, in DCTools/Web go to Batteries > Battery Time Remaining, or use the SC200 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 41). End Voltage must be at least 0.02V/Cell above the Minimum
System Voltage (per cell). The Minimum System Voltage is viewable in DCTools/Web at
Control Processes. It is not configurable.
6 Enable Battery Current Limit (see details on page 23).
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