Myenergi eddi, Руководство по эксплуатации и установке, Страница: 20 / 64

Configuration
Advanced Settings
Supply Grid - Phase
The Phase setting is only used on 3-phase systems.
It should be set to match the phase number that the eddi is wired to so that the power measurements are correct and that
the eddi responds to the correct phase when using the harvi wireless sensor.
An alternative setting is
ALL
, this tells the eddi consider export power as available surplus irrespective of which phase the
export power is actually on. This setting should be used only if you are sure the electricity meter is measuring the combined
net power across the three phases.
Supply Grid – Exp Threshold
This is the amount of export that must be exceeded before
eddi
starts diverting power to the heater loads. Once diverting
starts all the surplus power, less the Export Margin (see below) will be diverted to the heater load.
Supply Grid – Response Delay
This setting gives a delay before
eddi
starts to divert power (after the
Export Threshold
is exceeded).
The default setting is
0s
(zero seconds), however, if there is an AC-side battery storage system installed at the property, this
may need to be increased. For example, the storage system will be trying to charge the batteries with the surplus power,
but because
eddi is very fast, the surplus power would have already been taken-up by eddi . This may be undesirable as it
would usually make more economic sense to store the energy in the batteries as priority. By introducing a small Response
Delay (say 5 seconds), the battery system is given chance to respond before eddi does.
Supply Grid – Export Margin
This sets a minimum level of export power which is maintained when eddi is diverting surplus power to the heaters.
Normally Export Margin would be set to 0W (zero Watts) and all of the available surplus will be diverted to the heaters,
however, it is sometimes desired to have a minimum export level at all times.
Supply Grid – Grid Limit
Ordinarily the Grid Limit would be set to
OFF
, in some cases however, limiting of the grid import level can be an advantage.
For example a property may have a grid supply limit of 12kW and several appliances are on and the property is consuming
10kW by other appliances and the user wants to boost the water heating. If the water heater is rated at 3kW, the total
consumption would exceed the allowed import. However, with a
Grid Limit
setting of
12kW
, eddi would limit the
power to the heater to 2kW and the maximum allowed import power will not be exceeded.
CT Inputs
The CT1 and CT2 inputs are configured depending on the connected sensors.
CT1 Description
Disabled CT1 is not connected
this settings is used if the Grid Sensor is wired to a harvi device or if the
eddi is acting a a slave
unit
Grid CT1 input is wired to the Grid Sensor
CT2 Description
Disabled CT2 is not connected
Generation
CT2 input is wired to a Generation Sensor
Battery
CT2 is monitoring a battery storage system
Load
CT2 is monitoring a load
20 eddi operation and installation manual