Operation Mode; Start-Up Wizard - EBARA E-SPD MT 2200 Manual De Instrucciones Y Mantenimento

11. OPERATION MODE

The operation mode of the frequency converter will continuously seek to minimise the electricity demand, at the
same time guaranteeing minimum wear to the pumps.
a) Single pump unit:
By the direct reading of the pressure transducer, the variable speed drive is responsible for managing the rotation
speed of the electric motor of the pump, guaranteeing the mains pressure remains fixed and unaltered, regardless
of the instantaneous demand for flow required. When the demand for flow is at its greatest, the pressure of
the water network decreases. In this point the pressure transducer, which continuously informs the frequency
converter of the current pressure, causes the frequency converter to make the electric motor rotate more quickly,
guaranteeing the established working pressure. In contrast, when the demand for flow decreases, the frequency
converter makes the electric motor rotate more slowly so the pressure of the water network remains unaffected.
b) Unit with several pumps (Multi frequency converter):
When there is a network of two or more frequency converters connected together, the system decides in an alternate
and orderly manner which pump must start up first, when there is demand for flow. Once this pump starts to rotate,
if it stops because there is no more demand for flow, the system will start up a different pump the next time it starts
up, rotating all the pumps that comprise the network of frequency converters so that all the pumps in the frequency
converter network are started up the same number of times.
If a pump is running and reaches maximum rotational speed and the network pressure does not reach the
established working pressure, the system will decide whether to start up one more pump, to support the first one
or however many are running at that time. At that time the network of frequency converters will calculate the
rotational speed of the motors that guarantee the minimum electricity demand at the same time as maintaining
the working pressure.
Similarly, and with this same premise of maximum energy savings, the system will continually calculate when it
can disconnect each pump that is running at any time.

12. START-UP WIZARD

The first time you connect the voltage to your unit, a start-up wizard will run in which you can configure the basic
parameters to be able to start up the pump unit. This wizard only runs on one of the units regardless of the total
that are connected.
While using this wizard the red LED will blink indicating that this process is under way.
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