ITT PumpSmart PS220, Руководство по конфигурации и эксплуатации

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PS220 Configuration & Operation Guide
PS220 160
Functions &
Features
Multipump
PumpSmart Multipump Control Theory Overview.
The PumpSmart PS220’s Multipump Functionality allows for the seamless automatic control of up to 6 pumps in a
pumping system. Typically the pumps would be piped in parallel with each other. The staging and de-staging of each
pump based on increases and decreases in demand has been pre-configured, as well as automatic lead-lag switching,
and the automatic bypassing of a Pump/Drive combination that may experience faults of any kind. The system would
need to have a Process Transmitter either wired directly to each PS220, or in series with each unit. A system setpoint
would need to be established which will automatically be shared to all of the PS220 drives. Lastly a starting method
would need to be established, and that command would need to be sent and received to each drive.
The Multipump Functionality will work with every Process Control Mode as configured with the Process Control Wizard
and will be complimented with most all of the full suite of Functionality that is shown in this manual. For more detailed
information on all functions and features of the MultiPump Functionality please refer to the sections that follow in this
manual.
Process Transmitter Connections.
There are two methods to allow the physical process transmitter(s) with using the PID control Modes on the PS220
PumpSmart to function properly.
1. A single transmitter wired “in-series” to all drives. Refer to External 24VDC connections below and the wiring dia-
gram example.
Note – If degradation in signal quality is experienced on any of the drives, complete the circuit on a smaller loop and
wire an analog output of one drive that is directly receiving the process feedback into the Analog input of the next
drive.