Alternation Settings - Danfoss VLT AQUA Operating Instructions Manual

Parameter Descriptions
(27-42)
Illustration 5.10
5 5
NOTICE
Not used with star/delta controlled pumps.
27-43 Staging Threshold
Range:
Size [ 0 -
related 100
*
%]
Motor speed
high
Staging speed
Motor speed
low
Illustration 5.11
27-44 Destaging Threshold
Range:
Size [ 0 -
related 100
*
%]
30
VLT
Function:
Staging Threshold is the speed in the staging
ramp at which the fixed speed pump should
be turned on. Set as a percentage [%] of
maximum pump speed.
If 27-40 Auto Tune Staging Settings is [1]
Enabled, 27-43 Staging Threshold and
27-44 Destaging Threshold will be kept up to
date with new automatically calculated values.
If 27-43 Staging Threshold and 27-44 Destaging
Threshold are modified from the bus or LCP,
then the new values will be used, but will
continue to be automatically tuned.
Fixed speed pump
Monitor feedback and
change to closed loop if
set point is reached
Variable speed pump
Time
Closed loop
Function:
De-staging Threshold is the speed in the
staging ramp at which the fixed speed pump
should be turned on. Set as a percentage [%]
of maximum pump speed.
If 27-40 Auto Tune Staging Settings is [1]
Enabled will be kept up to date with new
automatically calculated values. If
27-43 Staging Threshold and 27-44 Destaging
MI38C402 - VLT
®
AQUA Drive MCO 101/MCO 102
27-44 Destaging Threshold
Range:
Motor speed
high
Destaging
speed
Motor speed
low
Illustration 5.12
27-45 Staging Speed [RPM]
Range:
0 RPM [0 - 0 RPM] Staging Speed is a readout parameter that
*
27-46 Staging Speed [Hz]
Range:
0 Hz [0 - 0 Hz] Staging Speed is a readout parameter that
*
27-47 Destaging Speed [RPM]
Range:
0 RPM [0 - 0 RPM] De-staging Speed is a readout parameter
*
27-48 Destaging Speed [Hz]
Range:
0 Hz [0 - 0 Hz] Destaging Speed is a readout parameter that
*

5.1.8 Alternation Settings, 27-5*

Parameters for configuring alternations.
27-51 Alternation Event
Option:
[0] Off
[1] At Destage
®
is a registered Danfoss trademark
Function:
Threshold are modified from the bus or LCP,
then the new values will be used, but will
continue to be automatically tuned.
Closed loop
Variable speed
pump
Monitor feedback and
change to closed loop if
Fixed speed pump
set point is reached
Function:
shows the actual staging speed based on
the staging threshold.
Function:
shows the actual staging speed based on the
staging threshold.
Function:
that shows the actual de-staging speed
based on the de-staging threshold.
Function:
shows the actual destaging speed based on
the destaging threshold.
Function:
Time