EC500 Controller Handbook
Copyright © 2019 Eaton Corporation. All Rights Reserved.
Issue A March 2019
Page 60 of 107
ENERGY METERING
EC500 provides following built-in energy meters.
•
1x for Total Battery (Bus Voltage & battery discharge current)
•
5 x for individual Battery, if individual current monitoring is configured
•
4x for Load (Bus Voltage & load current)
•
1x for AC Mains (AC voltage & current from Rectifiers)
•
1x for DG (AC voltage & current from Rectifiers, DG running)
•
1x for Solar (Energy from Solar Charger)
The Energy Logger records the energy readings for energy meters, cumulative at a specific interval and once in
a full day at midnight. The user can also view per day energy consumption.
DC voltage and current for energy meters are read from respective mapped analogue channels i.e. bus voltage,
battery current, load currents etc. and no additional mapping is required. AC voltage and ac currents are
measured by rectifiers. Solar energy is measured by respective solar chargers.
The EC500 supports internal and external energy meter option.
The EC500 also supports predefined external Modbus based energy meters. Contact Eaton for more details
and availability.
➢
To configure an Energy Meter
•
In AC configuration, set the status of AC energy meter to enabled.
•
Select the type of energy meter using in system, Internal energy meter or External energy
meter. The configuration set for AC that must be same for generator configuration.
•
For Battery Energy metering, enable the status of Battery energy meter, set battery LVD as
per requirement.
•
For load energy meter, enable the status of Load energy meter. Set number of load paths
and number of load LVDs, number of load path and LVD must be same.
•
Load current computation, set it enable if EC500 computing load current from the difference
of rectifier current and battery current. This can be used for the last load channel.
•
Select the shunt configuration from current sensing.
•
For solar energy metering, power is read from the solar charger directly.
INFORMATION
The following information is available about energy metering.
Parameter
Description
Where to find:
Load Voltage
Load Current
Load kWh
Voltage used in calculating an individual load path
energy meter power.
Current used in calculating an individual load path
energy meter power.
Energy in kWh measured by this meter. It is
continuously calculated and increased individually as
per load path.
Display:
Menu>System Status>Load
Web:
Menu>System Status>Load
Battery Voltage
Voltage used in calculating an individual load path
energy meter power.
Display:
