Overview PV running time



With this function block, consumers can be switched on and off depending on the PV surplus. A maximum running time can be specified here. For example, for a filter pump that should run 8 hours per day. During the day the pump runs only on surplus; the rest of the running time is then switched on in the evening.


Inputs

BA
 Operating mode*
 Operating mode:
  • 0=Automatic
  • 1=On
  • 2=Off
PU
 Surplus*
 PV surplus, a positive value means PV surplus.
LZ Running time hours Running time in hours. If the output FV is on, the running time is added up until this time is reached.
SM Start manual With a positive edge at this input the consumer is switched on for the remaining running time. This input can be activated, for example, with a time switch. When the remaining time has elapsed, the connected variable is set to 0, so with the time switch only a 1 needs to be set.
RS Reset Manual reset of the remaining running time. With a positive edge the remaining running time is set to 0.
FG Enable external Optional external enable. If this input is not assigned, the control is always enabled. Otherwise the control is only enabled when a value other than 0 is present at the input. This input can be used to halt the control when, for example, another consumer is to have priority.

Outputs
FV
 Enable consumer
 Enable consumer
LA
 Running time current
 Running time with surplus
LR Running time remaining Running time remaining

Parameters
Power consumer
 Power of the consumer
Time control
 Time in which it is checked whether surplus is present and the consumer is switched on/off.
Minimum surplus
 Minimum surplus that must at least be present for the control to begin.
Autom. reset hour Time at which the running time is reset. 0 means the running time is reset at 0:00h.

See also common parameters of all function blocks.