Danfoss VLT FC 103, Programming Manual

Page: 140 / 203

22-84 Speed at No-Flow [Hz]
Range: Function:
Size
related
*
[ 0 - par.
22-86 Hz] Resolution 0.033 Hz.
The speed of the motor at which flow has
effectively stopped and minimum
pressure H
MIN
is achieved should be
entered here in Hz. Alternatively, the
speed in RPM can be entered in
22-83 Speed at No-Flow [RPM] . If it has
been decided to use Hz in 0-02 Motor
Speed Unit then 22-86 Speed at Design
Point [Hz] should also be used. Closing
the valves and reducing the speed until
minimum pressure H
MIN
is achieved will
determine this value.
22-85 Speed at Design Point [RPM]
Range: Function:
Size
related
*
[ par.
22-83 -
60000
RPM] Resolution 1 RPM.
Only visible when 22-82 Work Point
Calculation is set to Disable . The speed
of the motor at which the System
Design Working Point is achieved should
be entered here in RPM. Alternatively,
the speed in Hz can be entered in
22-86 Speed at Design Point [Hz]
. If it has
been decided to use RPM in
0-02 Motor
Speed Unit then 22-83 Speed at No-Flow
[RPM] should also be used.
22-86 Speed at Design Point [Hz]
Range: Function:
Size
related
*
[ par.
22-84 -
par. 4-19
Hz] Resolution 0.033 Hz.
Only visible when 22-82 Work Point
Calculation is set to Disable . The speed of
the motor at which the System Design
Working Point is achieved should be
entered here in Hz. Alternatively, the
speed in RPM can be entered in
22-85 Speed at Design Point [RPM] . If it
has been decided to use Hz in
0-02 Motor Speed Unit , then 22-83 Speed
at No-Flow [RPM] should also be used.
22-87 Pressure at No-Flow Speed
Range: Function:
0
*
[ 0 - par. 22-88 ] Enter the pressure H
MIN
corresponding to
Speed at No Flow in Reference/Feedback
Units.
Also see 22-82 Work Point Calculation point D.
22-88 Pressure at Rated Speed
Range: Function:
999999
*
[ par. 22-87 -
999999.999 ] Enter the value corresponding to
the Pressure at Rated Speed, in
Reference/Feedback Units. This
value can be defined using the
pump datasheet.
Also see 22-82 Work Point Calculation point A.
22-89 Flow at Design Point
Range: Function:
0
*
[0 - 999999.999 ] Enter the value corresponding to the
Flow at Design Point. No units necessary.
Also see 22-82 Work Point Calculation point C.
22-90 Flow at Rated Speed
Range: Function:
0
*
[0 - 999999.999 ] Enter the value corresponding to Flow at
Rated Speed. This value can be defined
using the pump datasheet.
Parameter Description
VLT
®
Refrigeration Drive Programming Guide
MG16H102 - VLT
®
is a registered Danfoss trademark 139
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