ITT PumpSmart PS220, Configuration And Operation Manual

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PS220 Configuration & Operation Guide
203 PS220
Function & F
eatures
Sleep
Sleep is a function that that can be configured on the PS220 that will allow the pump to automatically stop pumping
while still completely satisfying the process control function assigned to it. This onboard logic will prevent pumping
at “Deadhead” or below minimum flow of the pump. It will automatically restart to maintain the pumping systems
setpoint.
The choices available for this function are:
1. Off
2. Min Speed (default)
3. Intelligent Sleep
The Sleep function can be configured with the PS220 Configuration Wizard. From the Home View follow the path:
Menu>PS220 Configuration>Process Control >Sleep>
1. When choosing off, the Sleep function is disabled. When the demand in the system decreases, the pump will
continue to run down to the minimum speed set in parameter 30.11. A “Dead Head” test is strongly recommended
to be performed to correctly set the minimum speed. Refer to the section for “Dead Head” in this manual.
2. Min Speed is the default setting. When set properly the drive will sleep as described above. With this
choice the pump will Sleep when the 3 values of “Sleep Value”, “Minimum Speed”, and the “Sleep De-
lay” have all been achieved. A Dead Head test is strongly recommended to be performed to correctly set
the minimum speed. Min Speed Sleep is not recommended for Level Control applications.
Note
When using “Minimum Speed” in the “Alarm & Control Pump Protection Response” the Minimum Sleep
is not a functional choice. “Intelligent Sleep” will need to be configured.
When selecting Min Speed, the “Meshing Gears” animation will be displayed.