Method for controlling several pumps
First Claim
1. A method for controlling one or more pumps in a pump sump with which each pump comprises a signal generator which switches on the pump, and each pump subsequent to its running is firstly automatically blocked by changing its switching value at which the pump is switched on by the signal generator from an initial switching value to a second switching value so that the same pump is prevented from being directly activated when again reaching said initial switching value, and depending on the running of the further pumps in the pump sump is released again.
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Accused Products
Abstract
The invention relates to a method for controlling several pumps in a pump sump, with which each pump comprises a switch which switches on the pump and each pump after its running is first blocked and depending on the running of the further pumps in the pump sump is released again. The invention further relates to a pump for carrying out this method.
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Citations
27 Claims
- 1. A method for controlling one or more pumps in a pump sump with which each pump comprises a signal generator which switches on the pump, and each pump subsequent to its running is firstly automatically blocked by changing its switching value at which the pump is switched on by the signal generator from an initial switching value to a second switching value so that the same pump is prevented from being directly activated when again reaching said initial switching value, and depending on the running of the further pumps in the pump sump is released again.
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6. A method for controlling one or more pumps in a pump sump with which each pump comprises a signal generator which switches on the pump, and each pump subsequent to its running is firstly automatically blocked by changing its switching value at which the pump is switched on by the signal generator so that the same pump is prevented from being directly activated when again reaching said initial switching value, and depending on the running of the further pumps in the pump sump is released again, wherein for each pump subsequent to its operation a fluid level threshold value at which the pump is started is firstly increased proceeding from an initial threshold value and depending on the running of the further pumps in the pump sump is reduced again.
- 7. A method for controlling one or more pumps in a pump sump with which each pump comprises a signal generator which switches on the pump, and each pump subsequent to its running is firstly automatically blocked by changing its switching value at which the pump is switched on by the signal generator so that the same pump is prevented from being directly activated when again reaching the initial switching value, and depending on the running of the further pumps in the pump sump is released again, wherein a fluid level threshold value for each pump is reduced in steps by a predefined value after the running of a further pump.
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10. A method for controlling one or more pumps in a pump sump with which each pump comprises a signal generator which switches on the pump, and each pump subsequent to its running is firstly automatically blocked by changing its switching value at which the pump is switched on by the signal generator so that the same pump is prevented from being directly activated when again reaching the initial switching value, and depending on the running of the further pumps in the pump sump is released again, wherein a fluid level threshold value for each pump is reduced in steps by a predefined value after the running of a further pump, wherein said fluid level threshold value after the operation of a further pump is in each case reduced to a level which is dependent on the number of the previously run pumps;
- wherein said fluid level threshold value in each case is reduced to a level which corresponds to
wherein x corresponds to the initial threshold value, Δ
x the amount by which said fluid level threshold value has been increased with respect to the initial threshold value, and n the number of previously run pumps.
- wherein said fluid level threshold value in each case is reduced to a level which corresponds to
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11. A method for controlling one or more pumps in a pump sump with which each pump comprises a signal generator which switches on the pump, and each pump subsequent to its running is firstly automatically blocked by changing its switching value at which the pump is switched on by the signal generator so that the same pump is prevented from being directly activated when again reaching said initial switching value, and depending on the running of the further pumps in the pump sump is released again, wherein each pump after its
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12. A method for controlling one or more pumps in a pump sump with which each pump comprises a signal generator which switches on the pump, and each pump subsequent to its running is firstly automatically blocked by changing its switching value at which the pump is switched on by the signal generator so that the same pump is prevented from being directly activated when again reaching said initial switching value, and depending on the running of the further pumps in the pump sump is released again, wherein the pump automatically detects a condition in which no further pumps are arranged in the pump sump, and automatically lifts their blocking.
- 13. A pump comprising a signal generator and control means for activating the pump, wherein the control means comprises a detector for detecting the operation of at least one other pump in the same pump sump, a blocking function which blocks the pump by changing its switching value from an initial switching value to a second switching value at which the pump is switched on so that the same pump is prevented from being directly activated when again reaching the initial switching value, and a release function which releases the pump again depending on the operation of further pumps in the sump pump.
- 21. A pump with a signal generator and a control for activating a pump with an initial switching value, wherein said control comprises a detector for detecting the operation of at least one pump in the same pump sump, a blocking function which blocks the pump by changing its switching value from said initial switching value to a second value and a release function which changes said second switching value to release the pump in response to the operation of further pumps.
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25. A pump with a signal generator and a control for activating a pump with an initial switching value, wherein said control comprises a detector for detecting the operation of at least one pump in the same pump sump, a blocking function which blocks the pump by changing its switching value from said initial switching value to a second value and a release function which changes said second switching value to release the pump in response to the operation of further pumps;
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wherein said pump comprises a level switch comprising a pressure sensor; and wherein said blocking function increases a threshold value of said level switch and the release function reduces the threshold value of said level switch.
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26. A pump with a signal generator and a control for activating a pump with an initial switching value, wherein said control comprises a detector for detecting the operation of at least one pump in the same pump sump, a blocking function which blocks the pump by changing its switching value from said initial switching value to a second value and a release function which changes said second switching value to release the pump in response to the operation of further pumps;
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wherein said pump comprises a level switch comprising a pressure sensor; wherein said blocking function increases a threshold value of said level switch and the release function reduces the threshold value of said level switch; and wherein said control is designed in a manner such that said threshold value in each case after detecting the running of a further pump is reduced in steps by a predetermined value.
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27. A pump with a signal generator and a control for activating a pump with an initial switching value, wherein said control comprises a detector for detecting the operation of at least one pump in the same pump sump, a blocking function which blocks the pump by changing its switching value from said initial switching value to a second value and a release function which changes said second switching value to release the pump in response to the operation of further pumps;
wherein said control is integrated into the pump.
Specification