Xylem HVS 1.1 - 3.4 - Manual (Page 25)

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7.2 Submenu Inverter
Submenu
Inverter
To enter this menu you have to press the Ð button, to
leave the menu, press the Îbutton longer than 3 sec.
7.2.1 Maximum Frequency
Max. Frequency
50.0 Hz
Possible setting between min. 40 and max. 70 Hz.
Attention: Settings higher than 50 Hz may overload the motor!
Settings of 10% above nominal frequency cause 33% more power consumption!
7.2.2 Boost
B O O S T
5.0 %
The stated value determines the course of the
U/f-curve.
Setting of the motor starting voltage in % of rated voltage
.
Settings of 0...25% of maximum output voltage are possible. However, care should
be taken that settings are kept as low as possible so that the motor does not
become thermally overloaded.
7.2.3 Fixed Speed
FIXED SPEED
30.0 HZ
This speed is to run the motor with constant speed.
This speed is activated if the Digital Input (X2-2/3) is closed
or
if it is a single pump and there is ERROR POWERMEASURE detected.
This speed should be set to maintain a minimum flow (e.g. night consumption)
The energy savings are also activated with the Fixed Speed.