Main Menu - Application Functions - Group - Danfoss VLT HVAC Basic Drive FC 101 Programming Manual

Parameters
3.15 Main Menu - Application Functions -
Group 22
3.15.1 22-0* Miscellaneous
3 3
Parameter group for extra settings.
22-01 Power Filter Time
Range:
0.50 s [0.02 - 10 s] Set the time constant for the filtered
*
3.15.2 22-2* No-Flow Detection
No ow/low
speed detection
Illustration 3.16 No-flow Detection
The frequency converter includes functions for detecting if the load conditions in the system allow the motor to be
stopped:
•
Low power detection.
One of these 2 signals must be active for a set time (parameter 22-24 No-Flow Delay) before selected action takes place.
Possible actions to select (parameter 22-23 No-Flow Function):
•
No action
•
Warning
•
Alarm
•
Sleep mode
88
®
VLT HVAC Basic Drive FC 101
Function:
power readout. A higher value gives a
Low Power
Detection
No- ow
timer
detection
P 22-24
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22-01 Power Filter Time
Range: Function:
more steady readout but a slower system
response to changes.
22-02 Sleepmode CL Control Mode
Option: Function:
[0] Normal The feedback is detected. Some parameters are
checked.
[1] Simplified The feedback is not detected. Only sleep speed
and time are checked.
This parameter is for sleep mode running in process
closed-loop mode. Use this parameter to configure
whether to detect the feedback for sleep mode.
Sleep mode
External
sleep mode
command
1
O
Warning
Alarm
P 22-23
Sleep
Min run
mode
timer
Min sleep
timer
P 22-40
P 22-41
Cascade
controller
(destaging
command)
P 25-26
MG18B502