22-26 Dry Pump Function
Option: Function:
Low Power Detection
must be Enabled (par. 22-21) and commissioned (using either par. 22-3*,
No Flow Power
Tuning
, or par. 22-20
Auto Set-Up
) in order to use Dry Pump Detection.
[0]
*
Off
[1] Warning Messages in the Local Control Panel display (if mounted) and/or signal via a relay or a digital output.
[2] Alarm The frequency converter trips and motor stays stopped until reset.
22-27 Dry Pump Delay
Range: Function:
60 sec.
*
[0-600 sec.]
Defines for how long the Dry Pump condition must be active before activating Warning or Alarm
22-30 No-Flow Power
Range: Function:
[Depends on the power size detec-
tion of No-Flow]
Read out of calculated No Flow power at actual speed. If power drops to the display value the frequency converter
will consider the condition as a No Flow situation.
22-31 Power Correction Factor
Range: Function:
100% [1-400%] Make corrections to the calculated power at No Flow Detection (see par. 22-30).
If No Flow is detected the setting should be increased to above 100%. If however No Flow is not detected the
setting should be decreased.
22-32 Low Speed [RPM]
Range: Function:
0 RPM [0.0 - par. 4.13 (Motor High
Speed Limit)]
To be used if par. 0-02,
Motor Speed Unit
, has been set for RPM (parameter not visible if Hz selected).
Set used speed for the 50% level.
This function is used for storing values needed to tune No Flow Detection.
22-33 Low Speed [Hz]
Range: Function:
0 Hz
*
[0.0 - par. 4-14 (Motor High
Speed Limit)]
To be used if par. 0-02,
Motor Speed Unit
, has been set for Hz (parameter not visible if RPM selected).
Set used speed for the 50% level.
The function is used for storing values needed to tune No Flow Detection.
22-34 Low Speed Power [kW]
Range: Function:
0
*
[0.0 - par. 22-38]
To be used if par. 0-03,
Regional Settings
, has been set for International (parameter not visible if North America
selected).
Set power consumption at 50% speed level.
This function is used for storing values needed to tune No Flow Detection.
22-35 Low Speed Power [Hp]
Range: Function:
0
*
[0.0 - Par. 22-39]
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 50% speed level.
This function is used for storing values needed to tune No Flow Detection.
22-36 High Speed [RPM]
Range: Function:
0 RPM
*
[0.0 - par. 4-13 (Motor High
Speed Limit)]
To be used if par. 0-02,
Motor Speed Unit
, has been set for RPM (parameter not visible if Hz selected).
Set used speed for the 85% level.
The function is used for storing values needed to tune No Flow Detection.
VLT
®
AQUA Drive
Operating Instructions
8. How to programme the frequency converter
MG.20.M4.02 - VLT
®
is a registered Danfoss trademark
89
8
To Next Page
Loading...
