IQ Load Controller Additional Info

ManualsBrandsEnphase ManualsAccessoriesIQ Load Controller with 2 Circuit Relay Contactors

Load and Solar Circuit Control using IQ System Controller Auxiliary Contacts

3. Check ‘Home owner can override’ – this will let the home owner to access the settings from

Enphase App Home Owner App

4. Press ‘Save’

Advanced Mode: Shed load when off-grid based on battery state of charge or

generator availability

This is an advanced mode allowing greater control over loads to the homeowner. Advanced mode can be

used to control loads based on either battery or generator.

Advanced mode with battery-based control: Shed loads when off-grid and battery below a

configured State of Charge (SoC)

In this mode, homeowner has the provision to control load based on battery state of charge. Homeowners

can configure the charge limit below which the load automatically gets shed.

IQ System Controller can disconnect specific load circuits when the aggregate SoC of all the batteries on

the site reaches or goes below a user set value(X%). The system will reconnect the load circuit once the

aggregate SoC of all the batteries on the site reaches or goes above user set value Y(X + buffer%). The

load will remain online if the SoC is between X% and Y% during the grid transition and will be shed only

when the SoC is less than the user set low limit (X%).

Mode

MID

SoC

Load circuit state

on-grid

MID Closed

SoC =any

Connected

off-grid

MID Open

SoC ≥ X%

Connected

off-grid

MID Open

SoC ≤ X%

Disconnected

off-grid

MID Open

X% < SoC < Y%

Connected

[1]

or Disconnected

[2]

off-grid

MID Open

SoC ≥ Y%

Connected

1. The load will remain connected as the SoC reduces from Y% to X%. It will be disconnected once the SoC goes

below X%.

2. The load will remain disconnected as the SoC recovers from X% to Y%. It will be reconnected once the SoC

goes above Y%.

Table 3: Load control based on ESS State of Charge (SoC)