SC300 Handbook
92
Copyright © 2007-2018 Eaton Corporation. All Rights Reserved.
IPN 997-00012-03 B2 Issue B2 July 2018
Parameter Setting
Control State Set to Automatic.
Status Set to Enabled.
Name Type the name of the output.
IOB Number The number of the I/O board (or SiteSure-3G module). Do not change.
IOB DO Number The number of the DO on the I/O board (or SiteSure-3G module). Do not
change.
Active State Select the state of the output when the DO is active*.
Group Set to 0 unless using Groups in PowerManagerII. See PowerManagerII online
help for details.
4 * One digital output is also used as the Monitor Fail alarm relay. Refer to the I/O Board
(IOBGP-xx) Connector Pin-outs on page 138 for the output number. This output will de-
energize if the I/O board loses power or loses communication with the SC300.
Alternative Energy Input Metering
The SC300 can meter currents supplied to the DC bus from alternative energy sources such as solar
or wind. This means that it can calculate currents to and from the DC bus correctly, even when
both rectifiers and alternative energy sources are providing power.
Currents from Eaton Solar Chargers (ASC48-ES) are automatically measured.
► To set up alternative energy input metering
• For each alternative energy source, connect a current sensor from the energy source to a
current shunt input or analog input.
• On DCTools/web, go to: Analog Inputs.
• Configure the selected Analog Inputs and set Function to Alternative Energy Source Current.
The Alternative Source current is calculated as the sum of the currents of all analog inputs
configured as Alternative Energy Source Current, plus the total current from all solar chargers
controlled by the SC300.
Smart Alarms based on System Value Sources can be used to configure alarms based on the
Alternative Energy Source Current.
See Smart Alarms on page 60 for details of how to set Smart Alarms.
The System Schematic shown in the SC300 web page displays the source current values (rectifiers
and alternative energy sources) and load current values (load and batteries). If one of these values
is not available, it is calculated from the other system current values. DCTools does not show solar
/ alternative energy sources on its system view, but the values are available in the analogue inputs
page.
Energy Metering
The SC300 can be configured with up to 20 energy meters.
Each energy meter can meter energy, power, minimum power, and maximum power.
The meters can measure load currents, alternative energy inputs, system values, and any other
energy flow that can be connected to the SC300s through the IOBGP or IOBSS IO boards.
Power is calculated as voltage multiplied by current, except where power is directly measured by
the solar charger, in which case that power value is used.
Energy is calculated as power continuously multiplied by time.
Several energy sources can be combined into a single meter. For example, this can be used to meter
both individual loads and total load.
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