Charging Pump Enable
The buffer charging pump enable output can be used during:
- charging control - to start the buffer charging pump directly or as an input to engineer more complex buffer charging strategies e.g. using this output in a switching logic with a solar pump command or other switching conditions
- Discharging control as a demand signal to start the external charging. The external charging can charge the buffer even if it can supply the consumers demand as long as it is not in overheat protection. Use the output “BufOverheatAlm” to stop the external charging.
The charging pump enable output will switch on without delay if one of the following conditions is true:
- the Operation Mode takes one of the values 2 or 3
- the input “ExtLoading” = 1
The pump will switch on only if there is
- No overheat protection
- The buffer charging does not stop due to high outside air temperature
The charging pump enable output will switch off without delay, if the both following conditions are true:
- when the operation mode is not 2 or 3
- when the input “ExtLoading” = 0
The pump will stop immediately if there is
- An overheat protection
- The buffer charging stops due to high outside air temperature