14.3.1 Deep discharge protection
Switching behaviour
The deep discharge protection switches the output off below the switch-off threshold and enables it
again when the battery charge exceeds the switch-off threshold by the switch-on difference (similar
functionality to section 14.3.5 '"StecaLink master connection"').
Operation
‘Main menu’
‘Output settings’ <Output> ‘Low volt. discon. - LVD’
14.3.2 Morning light function
The morning light function switches the output on and off based on the brightness and time. The
reference point is the time of dawn. The morning light function is suitable for loads that are oper-
ated a certain time before dawn, e.g. heating, feeding system, bus-stop lighting.
Switching behaviour
Q The output remains switched on during the switch-on duration (Fig. below) and is switched
off by the switch-off duration before dawn.
Q When dawn is detected the output is switched off, even if the switch-on duration has not
expired.
The morning light function relates to the time of dawn, but the resulting switching time lies
before dawn, i.e. in the past. For this reason, the controller must have performed at least one
night-day changeover before the morning light function can be executed. After this, the con-
troller continuously adjusts the time of dawn to suit any changes (weather, annual changes to
the length of the day, disconnection/covering of the solar module).
Operation
‘Main menu’
‘Output settings’ <Output> ‘Select function’
‘Main menu’
‘Output settings’ <Output> ‘Function settings’ ‘Morning light’
Dusk
Switch-on time
Switch-off time
Dawn
‘Switch-on duration’
‘Switch-off delay’
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