4-2-6_ALARM_LOG_RESET_104
Resetting alarm log
8.2.7 Pump groups
This display allows the user to select pump group properties.
The pumps can be split in two pump groups. The user has to define
the first pump in pump group 2. If pump 3 is defined as first pump,
pumps 4, 5 and 6 also belong to pump group 2.
Group settings
Alternation enabled
An alternating cycle can be enabled or disabled under "Alternation
enabled". The alternation function distributes the operating hours
equally between the two pumps. Service or replacement of a single
pump or both pumps can thus be planned. The risk of pumps
choking/seizing up as a result of limestone buildup or other deposits
can be avoided.
Max. number of started pumps
Maximum number of pumps allowed to run at the same time. Even
if the water level still rises, the max. number of started pumps is not
exceeded.
Min. number of started pumps
Minimum number of pumps that have to run at the same time. This
means that a certain water level must be reached before the pumps
are started. If one of the pumps is in alarm mode, the rest of the
pumps are stopped.
Common settings
Alternation between groups
If this function is enabled, a pump from the other pump group starts
when the water level has again reached start level 1 after a pump-
down.
Max. started pumps, total
Total number of pumps in both pump groups allowed to run at the
same time. This function has higher priority than "Max. number of
started pumps".
Max. number on generator
Total number of pumps allowed to run if the system is powered by
generator. This requires that a digital input has been configured to
“Running on generator”. Typically a backup generator is not sized to
be able to power all pumps in case of a power supply failure, and
consequently the number of allowed pumps running must be limited
accordingly.
Min. started pumps, total
Total number of pumps in both pump groups that have to run at the
same time. This means that a certain water level must be reached
before the pumps are started.
Groups may run together
If this function is enabled, both pump groups may be running at the
same time. The start level for each pump must be reached before
the pump is started.
Pump maximum run time
This function forces an alternation when the set time has expired.
See the examples below and the example in section about system
reaction to inflow changes.
Path:
Settings > Advanced functions > Pump groups
4-2-7_PUMP_GROUPS_136
Pump groups
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