Xylem HYDROVAR HV 4.150 / 4.185 / 4.220 - Manual (Page 73)

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0325
0325 FRQ. LIFT
30.0 Hz
Frequency limit for required lift value
Possible settings: 0.0 Hz – 70.0 Hz
Control according to a system curve (increase of the set pressure, depending on the flow
rate/speed to cover friction losses).
The setting determines the output-frequency where the set pressure starts to be increased.
The right setting should be equal to the frequency when the pump reaches the set pressure
at zero flow (Can be determined by using the JOG MODE [0305]).
0330
0330 LIFT AMOUNT
0.0 %
Lift amount for required lift value
Possible settings: 0.0 – 200.0%
This value states how much the set value should be continually increased, till the maximum
speed (maximum volume) is reached.
Application example:
1) Enter the set pressure (see main menu
parameter REQ. VAL [02])
2) Find out the frequency where set
pressure is reached at zero demand
(use JOG MODE [0305]) and set the
value in parameter FREQU. LIFTING
3) Set desired lift at maximum speed in %
of the set pressure in the parameter
LIFT-AMOUNT [0330].
A … set pressure
B … window
C … lift intensity in % of set pressure
G
G