English (GB)
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Setting range
1 to 1000 starts per hour.
Setting via control panel
• Settings > Pump cascade control > Max. number of starts/
hour.
1. Set:
• Min. time between start/stop.
• Max. number of starts/hour.
Factory setting
8.7.15 Standby pumps (4.2.3)
Fig. 55
Standby pumps
Description
This function makes it possible to limit the maximum performance
of the system, by selecting one or more pumps as standby
pumps.
If a three-pump system has one standby pump, maximum two
pumps are allowed to be in operation at a time.
If one of the two pumps in operation has a fault and has stopped,
the standby pump will be started. The performance of the system
is thus not reduced.
The status as standby pump alternates between all pumps.
Setting range
The number of possible standby pumps in a system is equal to
the total number of pumps in the system minus 1.
Setting via control panel
• Settings > Pump cascade control > Standby pumps.
• Set: Set the number of standby pumps.
Factory setting
The number of standby pumps is set to 0, i.e. function is disabled.
8.7.16 Forced pump changeover (4.2.4)
Fig. 56
Forced pump changeover
Description
This function ensures that the pumps run for the same number of
operating hours.
In certain applications, the requirement remains constant for long
periods and does not require all pumps to run. In such situations,
pump changeover does not take place naturally, and forced pump
changeover may thus be required.
Once every 24 hours, the CU 352 checks if any pump running has
a larger number of operating hours than pumps that are stopped.
If this is the case, the pump will be stopped and replaced by a
pump with a lower number of operating hours.
Setting range
The function can be enabled/disabled. The hour of the day at
which the changeover is to take place can be set.
Setting via control panel
• Settings > Pump cascade control > Forced pump changeover.
1. Select: Enabled.
2. Set: Time of day for changeover.
3. Select interval for pump changeover.
Factory setting
The function is enabled. The time is set to 03:00.
MPC-E:
200 starts per hour
Other variants:
100 starts per hour
Note
This function has no influence on
