ITT PumpSmart PS220, Руководство по конфигурации и эксплуатации

Страница: 199 / 300

PS220 Configuration & Operation Guide
PS220 198
Functions &
Features
Shutoff Power
The PS220 has the ability to automatically calculate the power at “Shutoff” for the pump that will be used.
This value is captured when the Smartflow Tuning Function is executed. This value is stored in Parameter 85.03
PSO 100%. To view this value from the Home View, follow the path: Menu>Parameters>Complete List>
Scroll Down to Group 85> See the screen shot below:
This value should be used during Smartflow Configuration. Most performance curves do not have an accurate
value for the data needed for Parameter 77.06 SO POWER. Once the first tune is completed, access 85.03 and
then use this number and enter this value in place of the existing one previously entered in 77.06. Execute
another Smartflow Tune. This will substantially improve the accuracy of the Smartflow values displayed when
the pump is running.
Signal Supervision Process Sensor Failure
If any Analog Transmitter connected to the PS220 fails, the unit can be configured to react based on the settings available.
The default for this option is “No-Action”.
The available choices are as follows:
1. NO ACTION – The PS220 will continue to run. Based on how the signal has failed it will either stop or go to full speed.
2. FAULT - The PS220 will fault and stop. This fault can be automatically reset. Refer to section on Automatic Reset -VFD
Faults & Process Sensor Fault.
3. WARNING – The PS220 will issue a warning message and continue to run. Based on how the signal has failed it will
either stop or go to full speed.
4. LAST SPEED – The PS220 will issue a warning message and continue to run at the last speed it was running when the
sensor failed.
5. SPEED REF SAFE – The PS220 will issue warning and run at the speed defined by parameter 22.41 “Speed ref safe”.
“Speed Ref Safe” by Default is 0.
You can further define the failure values (above and below the default values) for these reactions to occur and how you
want to drive to react to the failure mode of low, high or both. These reactions can be independent for each AI used for
individual sensors attached. See the Parameter Groups 12 and 32 below for recommended settings.