WATTrouter ECO - user manual
www.solarcontrols.cz
How to fit and setup the device
Page 39 from 66
increasing this value significantly. This time delay is not active in CombiWATT and TEST mode. Here it
is assumed that the low tariff activity time is always sufficiently long in case of double tariff rates.
For proportional outputs when PWM function and nonzero minimum power is used this value gives
the switch off delay for case air conditioner or heat pump is connected to this output and controlled
by PWM mode. If there is not enough surplus energy to run the device anymore the device will
continue to run at minimum power for specified amount of time.
CombiWATT – activates the CombiWATT mode for the relevant output (output must be activated, i.e.
to have assigned valid priority). Enter the required amount of energy power, which must be supplied
to the corresponding load every day.
Full power – mark this field if you want to switch the proportional output in CombiWATT or TEST
mode at full power, regardless of the Maximum power setting ("Maximum power"-field).In this way
you may eliminate the occurrence of disturbing flicker effect (produced by light bulbs or fluorescent
lamps) when CombiWATT or TEST is active. If you don't check this field the specified maximum power
for the load is used in CombiWATT or TEST mode.
Inverted – this checkbox applies only for relay or PWM outputs. When checked, the selected output
will be switched on in inactive status and switched off in active status. Since firmware version 1.7 this
inversion is active in all cases (independent from priority assignment or even the TEST status). There is
only one exception when a failure is detected. In this case the inverted relay output will remain
physically turned off.
This function in case of a relay output can be useful when you want to avoid delivering surplus energy
to public grid. Here, typically, one relay output is set as inverted and assigned to last priority. And it is
used to block the inverter. If there is inconsumable surplus energy (typically in hot summer) this relay
output disconnects the inverter for some time (given by Off-Delay time). After this time the inverter
starts again. To block the inverter it is recommended to use analog inputs of the inverter (for inverters
which support power reduction). In this configuration the inverter will be disconnected from grid on
each WATTrouter failure or when WATTrouter itself gets disconnected from grid.
In case of the output with PWM function, the output duty cycle of the PWM signal is inverted.
TEST – it is used to test the relevant output and load. If you press the TEST button then the
corresponding output is forced to switch on, independent from its current configuration. If the output
is inverted then since firmware version 1.7 the test mode is also inverted, i.e. it switches off. The
behavior of all other control functions depends on the “Output test blocks control” option state as
described in chapter Other settings tab.
TIME SCHEDULES TAB
On this tab you may set time schedules for individual outputs.
Up to 2 independent time intervals may be set for each individual output. During these time intervals the
relevant output may be forced to be switched on, or the switching process may be restricted. Enforcing or
restricting may be further conditioned by the presence of the low tariff signal and / or by the status of daily
energy counters for the relevant output (fields "Supplied energy").
You may use time schedules to create more complex configurations for outputs, based on user preferences.
You may also use time schedules to add or possibly replace the built-in CombiWATT mode.
