
Illustration 2.8: Quick Configuration
25-58 Run Next Pump Delay
Range:
Function:
0.1 s*
[0.1 - 5.0 s]
This parameter is only active if the option selected in par.25-50
, is different
from
Off
[0].
This parameter sets the time between stopping the old variable speed pump and starting another
pump as a new variable speed pump. Refer to par. 25-56
Staging Mode at Alternation
, the illustration
for description of staging and alternation.
25-59 Run on Mains Delay
Range:
Function:
0.5 s*
[par. 25-58 - 5.0 s]
This parameter is only active if the option selected in par.25-50
, is different
from
Off
[0].
This parameter sets the time between stopping the old variable speed pump and starting this pump
as a new fixed speed pump. Refer to par. 25-56
Staging Mode at Alternation
, the illustration for
description of staging and alternation.
2.21.6 25-8* Status
Readout parameters informing about the operating status of the cascade controller and the pumps controlled.
25-80 Cascade Status
Range:
Function:
0 N/A*
[0 - 0 N/A]
Read out of the status of the Cascade Controller.
25-81 Pump Status
Range:
Function:
0 N/A*
[0 - 0 N/A]
Pump Status shows the status for the number of pumps selected in par.25-06
It is a readout of the status for each of the pumps showing a string, which consists of pump number
and the current status of the pump.
Example: Readout is with the abbreviation like “1:D 2:O” This means that pump 1 is running and
speed controlled by the frequency converter and pump 2 is stopped.
25-82 Lead Pump
Range:
Function:
0 N/A*
[0 - par. 25-06 N/A]
Readout parameter for the actual variable speed pump in the system. The Lead Pump parameter is
updated to reflect the current variable speed pump in the system when an alternation takes place.
If no lead pump is selected (Cascade Controller disabled or all pumps interlocked) the display will
show NONE.
VLT
®
AQUA Drive Programming Guide
2 Parameter Description
MG.20.O4.02 - VLT
®
is a registered Danfoss trademark
223
2