Comelit 20046821 Manual Tecnico página 7

The SimpleHome module 20046821 can be used to measure the power absorbed or
produced over a single-phase system with a voltage of 230 Vac. By installing this module in
the SimpleHome system and connecting it to the BUS, it will be possible to view the power
value measured by the module on one of the supervisors (e.g. Planux Manager, Serial
Bridge, Minitouch, etc.). In addition to simply recording measurements, a list of loads can
be set for the disconnection of digital outputs on the SimpleHome modules (connected,
for example, to controlled sockets) if the recorded consumption value exceeds the limit
set during programming. This application is useful for ensuring the energy supplier's
thermal switch is not triggered. The outputs are disconnected in accordance with the
specified order. After a certain period of time (which can be programmed), the module will
attempt to reactivate the outputs in reverse order. An absorption value can be set for each
of the loads entered on the control, so that reconnection only occurs at the very moment
in which the power entered for that load is available on the system.
A SimpleHome system output can be set so that when the load control intervenes, the
output is activated to signal excessive consumption and indicate any downtime caused
by the disconnection of the outputs. It is also possible to set an instant disconnection
threshold on the module; when this is exceeded the module will deactivate all specified
outputs instead of disconnecting each output one-by-one with the relevant control.
The module can be used to store information for the metering of recorded energy, and
functions as a log. The total sum of the recorded power values can be viewed by entering
several devices on a single system. For this function to work, a compatible supervisor
must be fitted to the system.
Operation example:
Timed disconnection limit: 3500 W. Instant disconnection limit: 4000 W. Load 1:
consumption 800 W, disconnection time 5 minutes. Load 2: consumption 1500 W,
disconnection time 5 minutes. When 3500 W is exceeded, the module will begin by
disconnecting load 1, followed by load 2. When the set disconnection time has elapsed,
the module will attempt to reactivate the load disconnected most recently. If in that instant
the module reads a value of 2500 W it will not reactivate load 2, which has a consumption
of 1500 W, to avoid exceeding the set disconnection limit (3500 W); it will, however,
reactivate load 1 as the consumption of this load will not cause the limit to be exceeded.
The module will then only reactivate load 2 when sufficient power is available on the
system.
Tolerance and hysteresis values must be taken into account, as they may cause the
readings to vary by approximately 100 W.
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