Unequal Pump Size Configuration; Using Soft Starters For Fixed-Speed Pumps; Control & Status - Danfoss VLT Aqua Drive FC 202 Programming Manual

Programming Guide | VLT® Aqua Drive FC 202
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Figure 125: Mixed-pump Configuration

Unequal Pump Size Configuration

5.26.4
The unequal pump size configuration supports a limited mix of fixed-speed pumps in different sizes. This configuration provides the
larges range of system output with the smallest number of pumps.
5.26.5

Using Soft Starters for Fixed-speed Pumps

In a mixed-pump configuration, contactors can be replaced with soft starters.
Mixing soft starters and contactors hinders the control of output pressure during the staging and destaging transitions. The use of
soft starters delays staging due to the ramp time of a fixed-speed pump.
27-0* Control & Status
5.26.6
The parameters in this parameter group are used for monitoring and controlling pumps.
27-01 Pump Status
Default value: [0] Ready
Setup:
All setups
Data type: Uint8
This parameter shows the status of each pump in the system.
© 2024.06
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NOTICE
Parameter type:
Conversion index:
Change during operation:
Parameter Descriptions
Option, Array [9]
–
True
AU361182657213en-002101 / 130R0338 | 577