Program features 81
Diagnostics
Energy savings calculator
This feature consists of three functionalities:
• An energy optimizer that adjusts the motor flux in such a way that the total
efficiency is maximized
• A counter that monitors used and saved energy by the motor and displays them in
kWh, currency, or volume of CO
2
emission, and
• A load analyzer showing the load profile of the drive (see section Load analyzer
on page 82).
Note: The accuracy of the energy savings calculation is directly dependent on the
accuracy of the reference motor power given in parameter 45.08 Pump ref power.
Settings
Parameter group 45 Energy optimising (page 227).
Energy consumption monitoring
The control program monitors the energy consumption of the drive and pump, and
provides the consumption during the last 12 calendar months as actual signals.
There is also a comparison function that generates an alarm if the consumption rises
significantly compared to past consumption. The length of a monitoring period is set
by a parameter. The energy consumption within the currently running period is
compared to a parameter-adjustable limit, the previous monitoring period, or the
average of two previous periods. Whenever the consumption within the current
period exceeds the reference by a predefined margin (or tolerance), an alarm is
given.
Settings
Parameter group 83 Energy monitoring (page 280).
Diagnostics
Parameters 05.20…05.35 (page 125).
Signal supervision
Three signals can be selected to be supervised by this function. Whenever the signal
exceeds (or falls below) a predefined limit, a bit of 06.13 Superv status is activated.
Absolute values can be used.
Settings
Parameter group 33 Supervision (page 202).
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