Load Management

Principles of Load Management

Load Management has been introduced in version 1.1. In Load Management Arska automatically switches off the devices it controls if the load/current of one or more phases exceeds the defined limit. In this way, it is possible to avoid blowing the main fuse or to reduce the fees charged by the grid company. When load control is activated, it works with a higher priority than control rules or manual scheduling. That is, it can switch channels down whenever necessary.

Prerequisites

Load control requires that Arska receives up-to-date information on consumption from the energy meter. If you have new generation energy meter with a HAN P1 port, using meter type "HAN P1 Serial" with a serial adapter is recommended, as this provides the shortest response time and the most reliable data transfer between the meter and Arska. But it is possible to use Load Management also with WiFi connected energy meters Shelly 3 EM or HomeWizard P1 Meter (WiFi proxy to HAN P1 port).

When Load Management is operational

To enable Load Management set it active in Load Management Settings "Load Management active". Load Management only affects channels/devices whose load is defined, i.e. is greater than 0 Watts (Channels / Channel / Channel Control Rules / Load (W)).

What happens when the load is over the limit

If, according to the energy measurement, the current of one or more phases exceeds the set limit ("Max phase current (A)"), Arska immediately switches off all channels that are under Load Management control.

Recovery after overload

When overload situation is over i.e. measured load has been under set limit longer that defined minimum duration ("Re-switching wait time (minutes)") the system tries to switch channels up. Channel priority and load (in watts) affect the order in which the channels are switched back on.