Danfoss VLT AQUA Programming Manual page 240

2. Parameter Description
2
Illustration 2.2: Slow Configuration
Illustration 2.3: Quick Configuration
25-58 Run Next Pump Delay
Range:
0.5 sec
25-59 Run on Mains Delay
Range:
0.5 sec
240
makes staging and destaging as fast as possible; the variable
speed pump is just cut out (coasted).
Slow
to maximum speed and then ramped down to a stand still.
Quick
to maximum speed and then coasted to stand still.
The below examples show Alternation in both Quick and Slow
configurations.
Function:
*
[Par.25-58 – 5.0 sec] This parameter is only active if the option selected in
Alternation
This parameter sets the time between stopping the old variable
speed pump and starting another pump as a new variable speed
pump. Refer to
Figure 7-5 for description of staging and alternation.
Function:
* [Par. 25-58 – 5.0 sec ] This parameter is only active if the option selected in
Alternation
This parameter sets the time between stopping the old variable
speed pump and starting this pump as a new fixed speed pump.
MG.20.O2.02 - VLT
VLT
[0]: At alternation, the variable speed pump is ramped up
[1]: At alternation, the variable speed pump is ramped up
, par. 25-50, is different from
Staging Mode at Alternation
, par. 25-50, is different from
®
is a registered Danfoss trademark
®
AQUA Drive Programming Guide
Lead Pump
Off
[0].
, par. 25-56, and
Lead Pump
Off [0].