System Operation
Copyright © 2007-2011 Eaton Corporation. All Rights Reserved.
IPN 997-00012-50H November 2011
Analog System Values
The SC200 provides access to the following system analog values.
The average of all analog inputs configured as Bus
Voltage. Otherwise, the system bus voltage is
determined from the rectifier output voltages.
SC200: Analogs
DCTools/Web:
Analog Inputs >
System Values
The sum of any analog inputs configured as Load
Current. Otherwise, if Battery Current is available, the
Load Current is calculated as Rectifier Current - Battery
Current. Otherwise it is unavailable.
The sum of any analog inputs configured as Battery
Current. Otherwise, if Load Current is available, the
Battery Current is calculated as Rectifier Current - Load
Current. Otherwise it is unavailable. If positive, the
battery is being charged.
The average of all analog inputs configured as Battery
Temperature.
The sum of any analog inputs configured as Rectifier
Current. Otherwise, if there are Battery and Load
Currents, the Rectifier Current is calculated as Battery
Current + Load Current. Otherwise, Rectifier Current is
determined as the sum of all reported rectifier output
currents.
The power being supplied to the load. Load Current x
Bus Voltage.
The output power of the system as a percentage of
the total nominal power of the registered rectifiers.
The average of the ac voltage measured by single-
phase rectifiers.
Or, if 3-phase rectifiers are fitted then the average of
the ac phase voltages is shown.
Analog Inputs
The analog inputs (AI) monitor variable dc voltages (bus voltage sense, general purpose analog
inputs, current sensors or temperature sensors). See Specifications on page 105 for details.
Generally, the system analog inputs (as indicated by the "Function" field) are configured at the
factory and do not need to be changed.
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