22-39 High Speed Power [HP]
Range: Function:
Application
dependent*
[Application dependant] To be used if par. 0-03
Regional Settings
has been set for North America (parameter not visible if
International selected).
Set power consumption at 85% speed level.
This function is used for storing values needed to tune No Flow Detection.
22-40 Minimum Run Time
Range: Function:
10 s* [0 - 600 s] Set the desired minimum running time for the motor after a start command (digital input or Bus)
before entering Sleep Mode.
22-41 Minimum Sleep Time
Range: Function:
10 s* [0 - 600 s] Set the desired Minimum Time for staying in Sleep Mode. This will override any wake up conditions.
22-42 Wake-up Speed [RPM]
Range: Function:
Application
dependent*
[Application dependant] To be used if par. 0-02
Motor Speed Unit
has been set for RPM (parameter not visible if Hz selected).
Only to be used if par. 1-00
Configuration Mode
is set for Open Loop and speed reference is applied
by an external controller.
Set the reference speed at which the Sleep Mode should be cancelled.
22-43 Wake-up Speed [Hz]
Range: Function:
Application
dependent*
[Application dependant] To be used if par. 0-02
Motor Speed Unit
, has been set for Hz (parameter not visible if RPM selected).
Only to be used if par. 1-00
Configuration Mode
, is set for Open Loop and speed reference is applied
by an external controller controlling the pressure.
Set the reference speed at which the Sleep Mode should be cancelled.
22-44 Wake-up Ref./FB Difference
Range: Function:
10%* [0-100%] Only to be used if par. 1-00,
Configuration Mode
, is set for Closed Loop and the integrated PI
controller is used for controlling the pressure.
Set the pressure drop allowed in percentage of set point for the pressure (Pset) before cancelling
the Sleep Mode.
NB!
If used in application where the integrated PI controller is set for inverse control
in par. 20-71,
PID, Normal/Inverse Control
, the value set in par. 22-44 will au-
tomatically be added.
22-45 Setpoint Boost
Range: Function:
0 %* [-100 - 100 %] Only to be used if par. 1-00
Configuration Mode
, is set for Closed Loop and the integrated PI con-
troller is used. In systems with e.g. constant pressure control, it is advantageous to increase the
system pressure before the motor is stopped. This will extend the time in which the motor is stopped
and help to avoid frequent start/stop.
Set the desired over pressure/temperature in percentage of set point for the pressure (Pset)/tem-
perature before entering the Sleep Mode.
If setting for 5%, the boost pressure will be Pset*1.05. The negative values can be used for e.g.
cooling tower control where a negative change is needed.
VLT AQUA Low Harmonic Drive Operating In-
structions
6 How to Programme the Low Harmonic Drive
MG.20.T1.02 - VLT
®
is a registered Danfoss trademark 115
6
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