Danfoss VLT 2800 Series Operating Instructions Manual page 56

464 Wakeup Pressure
(Wakeup Pressure)
Value:
Par. 204 Ref – par. 215 - 218 Setpoint
MIN
Function:
When in Sleep mode the frequency converter will wake
up when the pressure is below the Wakeup pressure
for the time set in parameter 462 Enhanced sleep mode
timer.
Description of choice:
Set an appropriate value for the system. The unit is set
in parameter 416.
465 Minimum pump frequency
(Pump min. freq.)
Value:
Value par. 201 f – par. 202 f
MIN
Function:
This parameter is linked to parameter 467 Minimum
Power and is used for no/low flow power curve.
Description of choice:
Enter a value equal or close to the desired minimum
frequency set in parameter 201 Output frequency low
limit, f . Please note, that the extension of the no/low
MIN
flow power curve is limited by parameters 201 and 202
and not by parameters 465 and 466.
466 Maximum Pump Frequency
(Pump max. freq)
Value:
Value par. 201 f - par. 202 f
MIN
Function:
This parameter is linked to parameter 468 Maximum
pump power and is used for the no/low flow power
curve.
Description of choice:
Enter a value equal or close to the desired maximum
frequency set in parameter 202 Output frequency high
.
limit, f
MAX
= factory setting, () = display text, [] = value for use in communication via serial communication port
®
MG.27.A2.02 - VLT is a registered Danfoss trademark
0
The associated power consumption at the frequency
entered in parameter 465 Minimum pump frequency.
Enter the no/low flow power reading at minimum pump
frequency entered in parameter 465.
Depending on pump size or curve select W or kW in
par. 009 index [32] and [8] for fine tuning.
(Hz)
20
MAX
The associated power consumption at the frequency
entered in parameter 466 Minimum pump frequency.
Enter the no/low flow power reading at maximum
pump frequency entered in parameter 466.
Depending on pump size or curve select W or kW in
par. 009 index [32] and [8] for fine tuning.
(Hz)
50
MAX
This function is used for an off-set of the no/low flow
power curve, which can be used as a safety factor or
for fine tuning of the system.
Description The factor is multiplied to the power val-
ues. E.g. 1.2 will increase the power value with 1.2
over the whole frequency range.
®
VLT 2800 Series
467 Minimum Pump Power
(Min. pump power)
Value:
0 – 500.000 W
Function:
Description of choice:
468 Maximum Pump Power
(Max. pump power)
Value:
0 – 500.000 W
Function:
Description of choice:
469 No Flow Power Compensation
(NF power comp)
Value:
0.01 - 2
Function:
Description of choice:
0
0
1.2
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