Pump Control Board - MultiTrode MultiSmart Installation & Operation Manual
Pump station manager & rtu
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- Installation & operation manual (260 pages) ,
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MultiSmart Installation & Operation Manual
7.2.5
Contactor Auxiliary Fault
If the contactor auxiliary is wired in, the pump status is displayed differently for when a pump is called to run.
The contactor auxiliary is used to provide feedback to the MultiSmart as to when the contactor is closed and
the pump is actually running. As soon as the pump running command is sent, the MultiSmart displays the
status of the pump as Request to Run and when the contactor closes the status is updated to Running. If
the contactor takes too long to close or fails to close at all, the preset delay will expire and a pump fault is
displayed but the pump is not faulted. As per all faults this can be modified to fault the pump thereby calling
the next pump to run.
7.3 Pump Control Board
The pump control I/O board monitors mains voltage and provides digital and analog I/O. Level sensing can
be from a MultiTrode conductive probe, or any 4-20mA device, e.g. pressure transducer or ultrasonic. Pump
faults can be contact closures or pump specific inputs such as seal, PTC thermistor, or Flygt FLS and CLS.
Digital outputs drive the pump contactors.
7.3.1
Mains Voltage Monitoring
For voltage monitoring to work, connect the main supply to the pump control I/O board. To configure voltage
monitoring and protection see Section 18. MultiSmart also supports single phase AC power supplies.
Figure 34 – Connecting Mains Supply to MultiSmart for Monitoring and Protection Purposes.
MultiSmart_IO_Manual_A4_v2-22_R15.doc
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Questions and answers
I have four pumps connected to my multi smart. One jockey and three that rotate with the jockey as needed. My problem is that the jockey pump always shows its running even when it isn't running. the other pumps show actuate run times and starts. only the main pump shows continuous run even when it is turned off. I was wondering if there any advice I could be given to resolve this issue.
The MultiTrode MultiSmart may show the jockey pump as continuously running even when it is turned off due to the "External Run" status. This occurs if the pump is started by an external control method, such as a manual override switch, where the contactor remains closed but no run command was sent by the controller. As a result, the system continues updating run time statistics and generating relevant faults or warnings. Checking for an external control signal or a stuck contactor may help resolve the issue.
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