Danfoss VLT AQUA Drive Operating Instructions Manual page 93

®
VLT AQUA Drive
Operating Instructions
22-84 Speed at No-Flow [Hz]
Range:
*
10 Hz [0 - Value of par. 22-86]
22-85 Speed at Design Point [RPM]
Range:
*
1500 RPM [0 - 60,000]
22-86 Speed at Design Point [Hz]
Range:
*
50 Hz [0 - 1000 Hz]
22-87 Pressure at No-Flow Speed
Range:
*
0 Reference/ Feedback Units
999999.999]
22-88 Pressure at Rated Speed
Range:
*
0 Reference/ Feedback Units
999999.999]
Function:
Resolution 0.033 Hz.
The speed of the motor at which flow has effectively stopped and minimum pressure H
entered here in Hz. Alternatively, the speed in RPM can be entered in par. 22-83 Speed at No-Flow [RPM]. If it
has been decided to use Hz in par. 0-02 then par. 22-86 Speed at Design point [Hz] should also be used. Closing
the valves and reducing the speed until minimum pressure H
Function:
Resolution 1 RPM.
Only visible when par. 22-82 Work Point Calculation, is set to
Design Working Point is achieved should be entered here in RPM. Alternatively, the speed in Hz can be entered
in par. 22-86 Speed at Design Point [Hz]. If it has been decided to use RPM in par. 0-02 then par. 22-83 Speed
No Flow [RPM] should also be used.
Function:
Resolution 0.033 Hz.
Only visible when par. 22-82, Work Point Calculation, is set to
System Design Working Point is achieved should be entered here in Hz. Alternatively, the speed in RPM can be
entered in par. 22-85 Speed at Design Point [RPM]. If it has been decided to use Hz in par. 0-02, then par. 22-83
Speed No Flow [Hz] should also be used.
Function:
Enter the pressure H corresponding to Speed at No Flow in Reference/Feedback Units.
[0 - MIN
Function:
Enter the value corresponding to the Pressure at Rated Speed, in Reference/Feedback Units. This value can be
[0 -
defined using the pump datasheet.
®
MG.20.M4.02 - VLT is a registered Danfoss trademark
8. How to programme the frequency converter
is achieved will determine this value.
MIN
Disable
. The speed of the motor at which the System
Disable . The speed of the motor at which the
is achieved should be
MIN
8
93