WATTrouter ECO - user manual
www.solarcontrols.cz
How to fit and setup the device
Page 42 from 66
consumption indicator, but during normal and stable control statuses some surplus energy flows
unused into public grid. If you use standard connection and configuration, then it is not recommended
to use positive offset.
PWM frequency – (since firmware version 1.7) set the desired frequency for outputs with PWM
function. This frequency is always the same for all outputs (and cannot be set differently by
hardware).
Internal DC source - (since firmware version 1.7) informs about the voltage value of the internal DC
source of the controller. This value is used to check for eventual overloading of the internal power
supply, which may lead to the "DC source overload" fault. See chapter Measured parameters and
statuses for details.
Output test blocks control - (since firmware version 1.7) this function is used to set the output
behavior in TEST mode. If this option is checked, the test mode behaves as in all older firmware
versions and thus activating any output to the TEST mode completely stops the control. If this option is
unchecked, the TEST mode does not block the control of other outputs that are not in the TEST mode.
Output test timeout - (since firmware version 1.7) this item is used to limit the duration of the TEST
mode activity. If the entry is zero, the TEST mode is unlimited and behaves as in all older firmware
versions. If the item is non-zero, the TEST mode will be limited to the specified time. The value is the
same for all outputs. This new function can be used, for example, to temporarily switch an output in
manual mode, if it is necessary to quickly force a certain output to switch on for a limited period of
time.
Date and time settings:
Synchronize date and time with the client - check this field if you want to synchronize the controller
date and time with the actual time running in your PC.
Use summer time - check this field if you want the controller to perform automatic switching between
summer and winter time. Based on EU recommendations only summertime is supported, which starts
at 2:00 CET on the last Sunday in March and ends at 3:00 CEST on the last Sunday in October. The
summertime information is used to automatically modify the current time as well as the calculated
sunrise time.
Time zone - specify the time zone based on your country. The default value uses Central European
time. This value is only used to modify the calculated sunrise time. Time zones outside of multiples of
full hours are not supported.
CombiWATT settings:
CombiWATT delay time – specifies the time delay from the moment where PV-plant production is not
detected anymore (after sunset) until CombiWATT can become active. It is recommended to increase
the setting if you are frequently using electrical loads (other loads than those connected to the
controller), which consume entire surplus energy of the PV-plant for long time. In this case, the
controller cannot recognize that PV-plant production is not yet over.
Time to activate CombiWATT – it displays the remaining time before activation of the CombiWATT
mode. The value is equal to the "CombiWATT delay time"-parameter, provided that some surplus
energy is still detected. If the value equals to zero and low tariff signal is detected at the same time,
the system activates the CombiWATT mode for corresponding outputs.
CombiWATT production limit – small amount of active production or surplus energy (single units or
tens of Watts) may be detected for facilities with significant capacity loads (blocking capacitors, UPS
