ACS-CONTROL-SYSTEM GmbH
l Lauterbachstr. 57 l D-84307 Eggenfelden l www.acs-controlsystem.de l [email protected]
22
5 .5 .1 .4 .6 Pump function sequential S1/S2/S3/S4
Purpose of the pump function sequential is the alternating use of multiple pumps for the same task
(Overflow protection or dry running protection).
Due using the pumps for the same task, it can be detected by the pump switch-on time, if one of the
pumps doesn’t operate with the necessary performance (Runtime of the pump increases).
All switch outputs, which are activated for pump function, are not assigned to a certain switch point,
but should be switched-on resp. switched-off alternating. When reaching the switch delay value, the
evaluation device chooses the switch output, which is next in the alternating row.
When reaching the reset switch point, the switch outputs are switched-off in the same order like they
have been switched-on.
The order is predefined. It starts with the switch output with the lowest index. The next switch output
is the switch output with the next higher index. After the switch output with the highest index it will be
changed to the switch output with the lowest index, e.g. S1…S2…S3…S4…S1…S2….
The order is valid for all switch outputs, which corresponds to the pump function.
The index of the last switched-on switch output will not be saved, that means that after power-on it
will be started always with the switch output with the lowest index.
In the case, that multiple pumps are operated alternating in the same range, the switch points resp.
reset switch points must be set to the same value.
Due to this, all switch outputs will switch always together. To achieve still the required switch
behaviour, one switch output must be set to the needed switch point resp. reset switch point. All other
switch outputs must be set to switch points resp. reset switch points, which will never be achieved in
standard operation.
In the menu Operating Mode, the working principle of the switch output can be inverted.
5 .5 .1 .5 Operating Mode – E
The operating mode defines the function direction of the switch output, dependent on the function.
The effects of this parameter are described in the respective sub-chapter of the chapter „Function“.
Summary of Contents for Sonicont USN4SP
Page 58: ......
