en
Configuration
152
WILO SE 2020-12
6.6.7.3
Pump Limits and Changer
The base-load pump is regularly switched in order to prevent irregular running times of
the individual pumps.
ƒ
Max. Pumps
Max. number of pumps in the system that may be operated simultaneously.
Factory setting: 2
Input: 1 to 4
ƒ
Pump Change Strategy
Basic control for pump cycling.
Factory setting: Impulse
Input: Impulse, Cyclic
–
Impulse
Pump cycling takes place after all pumps have been stopped.
–
Cyclic
Pump cycling takes place after the specified time under "Cyclic Period Time".
ƒ
Cyclic Period Time
If the "Cyclic" change mode is set, enter here the duration after which a pump cyc-
ling takes place.
Factory setting: 60 min
Input: 1 to 1140 min
6.6.7.4
Min/Max Frequency
Specify the minimum and maximum operating frequency of the pumps in the system:
ƒ
Max.
Maximum operating frequency of the pumps in the system.
Factory setting: maximum frequency according to rating plate
Input: from
minimum
to
maximum
frequency
according to rating plate
ƒ
Min.
Minimum operating frequency of the pumps in the system.
Factory setting: minimum frequency according to rating plate
Input: from
minimum
to
maximum
frequency
according to rating plate
NOTICE! The input is limited by the application limit of the pump set by the factory!
6.6.7.5
Start Frequency
Specify an increased operating frequency when starting the pump.
ƒ
Frequency
Operating frequency at pump start.
Factory setting: maximum frequency according to rating plate
Input: from
minimum
to
maximum
frequency
according to rating plate
NOTICE! This function is only active if the setpoint frequency of the controller is
lower than the increased start frequency.
NOTICE! If the set value is equal to the minimum frequency, the function is deac-
tivated.
ƒ
Duration
During the specified time, the pumps run at the increased operating frequency. The
frequency is then individually controlled depending on the control mode.
Factory setting: 1 s
Input: 1 to 30 s
6.6.7.6
Alternative Stop Level
Additional switch-off level to lower the fill level in the pump chamber and to aerate the
level sensor. The additional shut-down level is activated after a specified number of
pump cycles has been reached.
NOTICE! Set switch-off level above the level value for dry-running protection!
ƒ
Enable
Switch function on and off.
Factory setting: Off
ƒ
Stop Level
Set the desired fill level.
Factory setting: 0.05 m
Input: 0.05 to 100 m
ƒ
Trigger after n Starts
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