SOLAR controls WATTrouter Mx series User Manual page 39

WATTrouter Mx - user manual
more information about controlling air conditioners or heating pumps proportionally see
manufacturer's web site.

PWM-I – for SSR outputs when PWM function is used then this value is equal to the I-component value
of the PID-regulator assigned to this output. The value can be selected between 1 and 1000. Select
value according to the dynamics of the connected system (battery charger, heating pump etc.). Start
with a small value (1 to 10) and gradually increase the value if the system dynamics is slow. For values
less than 100 the dynamics is rather slow so that the system allows switching outputs with lower
priorities, to cover available surplus energy. If the Minimum power field is nonzero the control will
start after 3 minutes. In the meantime minimum power is held – aimed for softstart of air conditioners
or heating pumps.
Caution: In case of a too big PWM-I value the system may become unstable and this status may
damage the connected device, when there is no built-in protection in the device!

Delay - for proportional outputs when PWM function is used this value gives the switch off delay for
case air conditioner or heating 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.

On-delay time – this value applies only for relay outputs. This delay time runs from the moment a
condition has been detected to switch the relay output on. After the time elapses the relay is really
switched on. It is recommended to use the default value, or to slightly increase it if the relevant load
cannot be switched on frequently. The value may be decreased down to 2s. However, such small delay
time may sometimes cause false load switching. Therefore, we recommend decreasing the value only
in certain cases and after proper testing. This time delay is not active in CombiWATT mode.

Switch-off delay - this value applies only for relay outputs. This delay time runs from the moment a
condition has been detected to switch the relay output off. After the time elapses the relay is really
switched off. This feature is necessary for loads which cannot be switched on frequently. The value
may be reduced down to 2s. This time delay is not active in CombiWATT mode. Here it is assumed that
the low tariff activity time is always sufficiently long in case of double tariff rates.

CombiWATT – activates the CombiWATT mode for the relevant output (output must be activated, i.e.
have assigned a 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 at full power,
regardless of the Maximum power setting ("Maximum power"-field).In this way you may eliminate the
occurrence of disturbing flicker effect (fast changes in mains voltage or rapid flashing of light bulbs and
fluorescent lamps) when CombiWATT if active. If you don't check this field the specified maximum
power for the load is used in CombiWATT mode.

Inverted – this checkbox applies only for relay outputs. When checked, the selected output will be
switched on in inactive status and switched off in active status. The output will not be switched on if
any defect/failure is detected, or the output was not assigned with any priority, or the output was not
assigned with relay function. In these cases, the output inversion condition does not apply. For
example, this feature may apply if there is necessary to "unlock" some device according to available
surplus energy.
How to fit and setup the device Page 39 from 82