Minimum Frequency; Boost; Operation Of The Minimum Frequency; Delay Time For Fmin - Xylem hydrovar hv 1.1 Operating Instructions Manual

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13.5.2 Minimum frequency

Min. Frequency
0.0 Hz
CONFIG FMIN (see chapter 13.5.4) the pump will not stop in the normal mode. It will
keep running with the set minimum frequency.
!! Possibility of overheating of the pump !!
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13.5.3 Boost

B O O S T
5.0 %
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.
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13.5.4 Operation of the minimum frequency

Config. Fmin
F ⇒ Fmin
Then the inverter will run for the selected time(13.5.5)and after this time the Hydrovar
will stop automatically.
With the selection is „F->F
frequency. In the controller, actuator and multicontroller mode the pump will never run
below the set minimum frequency (the pump will only stop with the external on/off-
terminals or in case of a failure).
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13.5.5 Delay time for Fmin

Fmin Time
CONFIG Fmin (see chapter 13.5.4) it set to F ⇒ 0 Adjustable between 0 and 100s.
To leave the submenu press the
Here you can set the minimum frequency.
Attention!: If there is set F>Fmin in the parameter
The stated value determines the course of the
U/f-curve.
If you have selected „F->0" the frequency will go
down to the selected minimum frequency (13.5.2).
" you can not run the pump below the set minimum
min
After running the pump for this selected time at
0 s minimum frequency, the pump will stop, if parameter
key longer than 3 sec.!
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