Xylem HV 1.1 - 1.2 User Manual

Page 45

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45

Accel. Low

70 Sec

A too slow running up time during variation of

demand the outgoing pressure may break.
A too fast running up time may lead to over

oscillation and /or overload of the inverter.

Press

Î

on the controller to change to



13.6.6 Slow deceleration time

Decel. Low

70 Sec

A too fast setting leads to oscillation

A too slow setting delays the switching off too

much and may generate over pressure.

Ramp Window


Press

Î

on the controller to change to

13.6.7 Compensation Frequency
Control according to a system curve (increase of the set pressure depending on
the delivery rate or speed).

LIFT FREQUENCY

30.0 Hz

Adjustable between 6 Hz and the set MAXIMUM
FREQUENCY, this setting states at which frequency

the set pressure should be increased. That is the speed at which the pump works at the set
pressure and at delivery rate 0.

Press

Î

on the controller to change to

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