WATTrouter M - user manual
How to fit and setup the device
Page 13 from 79
Figure 8: Single-phase connection with optional low tariff signal circuit for CombiWATT mode. Current sensing module is placed at the
facility’s supply cable coming from the distribution box where main energy meter is located. The connected loads use only rea l surpluses
produced by PV-plant. All 6 loads are connected, 2 of them through the recommended SSR, line RJ1A - manufactured by Carlo Gavazzi
(now superseded by RGS1A or RGC1A series). One optional energy meter type EM10 manufactured by Carlo Gavazzi with pulse output
(open collector) is connected to input FB1. The electric meter can measure any flow of energy, for example net production of the PV-
plant.
The controller may be connected only to 230VAC, 50 Hz public electric grids.
Regulator must be protected with a circuit breaker - recommended rating is B6A -
and connected loads must also be adequately protected! Installation may only be
done when the facility’s main circuit breaker is turned off!
Upon completion of the installation process make sure to check thoroughly the connection of the
regulator and the current sensing module. Also check connection of all terminals at the bottom,
where
NO
power grid voltage or voltage outside of tolerances specified in the chapter Technical
specifications may be connected!
NO
other than resistive (heating) loads may be connected to
built-in triacs or power SSRs! Regular relays
CANNOT
be connected to SSR outputs! It is
prohibited to connect loads with higher than the maximum allowed nominal power! If you fail to
observe these rules it is almost guaranteed that you will damage the regulator and lose your
warranty!
For the correct operation of the controller, it is absolutely necessary to ensure proper phasing of
the measured currents with the internal voltage detector. This can be done by selecting the
appropriate phase in the Input Settings tab. It is strongly recommended to connect the controller
so
that the phase conductor fed to terminal L1 corresponds to the phase conductor
wired through the measuring transformer corresponding to the IL1 input, which
will allow the measurement to match the default settings of the controller (and
