FR200H Special Purpose Inverters for Multi-pumps Constant Pressure Water Supply
- 24 -
Fixed variable-frequency pumps mode parameters setting instructions
Note: in case of using 2 pumps or 3 pumps, set parameter (H00.11 pump status) corresponding to set
the un-usage pump to be 0, the pump stops.
1: 2 variable-frequency pumps cycle mode
Water supply system doesn’t fix a certain pump as variable-frequency pump, when system pressure is
insufficient, the running variable-frequency pump firstly switch to grid-power frequency running, and
then variable-frequency enable the next new pump, the pump is the new variable-frequency pump.
When the system has too much pressure, power-frequency pump stops. The same moment at most
only one pump work as variable-frequency pump, another one work on power-frequency, (can control
2*variable-frequency pumps work in cycle). Wirings refer to Figure 3-2.
Figure 3-2 2 variable-frequency pumps cycle mode
2 variable-frequency pumps cycle modeparameters setting instructions: