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Electro-PSR1-Pump-Sequence-Relay

Pump Sequence Relay – PSR1

R491.90

Pump sequence module is designed to optimize the wear on pumps, compressors or generators. The first input energizes the first pump and stores this in non-volatile memory. Subsequent inputs will energize the next output. The number of its outputs correspond to the number of outputs. After power down or no inputs activated and an input is activated, the next in the sequence of outputs is activated. This ensures balanced usesage of the pumps because the same pump is not activated at the beginning of a sequence.

 

Features:

 

  • Three normally open pressure switch inputs (voltage free)
  • Three normally open pump outputs
  • Permanent memory for next pump activated after power off
  • Output 10A SPDT
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Description

Mode of Operations:

 

Closure of the first pressure switch the first pump will be energized. The second and third pressure switch will energize the second and third pump. The number of pumps activated corresponds to the number of pressure switches closed. If switch 2 opens the second pump will de-activate. The position of the switches does not matter, just the number. If all switches are open and no pump is activated, and the next switch closed will activate the second pump. The next switch will activate the third pump. This ensures a spread of the work load between pumps.

 

Example: Controlling washing machine cycles (forward and reverse)

Additional information

Supply Voltage

525Vac, 400Vac, 230Vac, 110Vac, 48Vac/dc, 24Vac/dc, 12Vac/dc

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