Xylem HV 1.1 - 1.2 - Manual (Page 43)

43
Press Î on the controller to change to
13.5.2 Minimum frequency
Min. Frequency
0.0 Hz
Here you can set the minimum frequency.
Attention!: If there is set F>Fmin in the parameter
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 !!
Press Î on the controller to change to
13.5.3 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.
Press Î on the controller to change to
13.5.4 Operation of the minimum frequency
Config. Fmin
F ⇒ Fmin
If you have selected „F->0“ the frequency will go
down to the selected minimum frequency (13.5.2).
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
min
“ you can not run the pump below the set minimum
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).
Press Î on the controller to change to
13.5.5 Delay time for Fmin
Fmin Time
0 s
After running the pump for this selected time at
minimum frequency, the pump will stop, if parameter
CONFIG Fmin (see chapter 13.5.4) it set to F ⇒ 0 Adjustable between 0 and 100s.
To leave the submenu press the Î key longer than 3 sec.!