Danfoss VLT FC 100 Operating Instructions Manual page 129

6 How to Programme
22-23 No-Flow Function
Common actions for Low Power Detection and Low Speed Detection (Individual selections not possible).
Option:
[0] * Off
[1] Sleep Mode
[2] Warning
[3] Alarm
Do not set par. 14-20
auto reset, when par. 22-23
to [3] Alarm. Doing so will cause the drive to contin-
uously cycle between running and stopping when a
6
No Flow condition is detected.
22-24 No-Flow Delay
Range:
10 s* [1 - 600 s]
22-26 Dry Pump Function
Select desired action for dry pump operation.
Option:
[0] * Off
[1] Warning
[2] Alarm
[3] Man. Reset Alarm
Low Power
(par. 22-21
(using either parameter group 22-3*,
Tuning , or par. 22-20 Low Power Auto Set-up ) in or-
der to use Dry Pump Detection.
Do not set par. 14-20
auto reset, when par. 22-26
set to [2] Alarm. Doing so will cause the drive to con-
tinuously cycle between running and stopping when
a Dry Pump condition is detected.
22-40 Minimum Run Time
Range:
10 s* [0 - 600 s]
128
Function:
The drive will enter Sleep Mode and stop when a No Flow condition is detected. See parameter
group 22-4* for programming options for Sleep Mode.
The drive will continue to run, but activate a No-Flow Warning [W92]. A drive digital output or a
serial communication bus can communicate a warning to other equipment.
The drive will stop running and activate a No-Flow Alarm [A 92]. A drive digital output or a serial
communication bus can communicate an alarm to other equipment.
Reset Mode , to [13] Infinite
No-Flow Function is set
Function:
Set the time Low Power/Low Speed must stay detected to activate signal for actions. If detection
disappears before run out of the timer, the timer will be reset.
Function:
The drive will continue to run, but activate a Dry pump warning [W93]. A drive digital output or a
serial communication bus can communicate a warning to other equipment.
The drive will stop running and activate a Dry pump alarm [A93]. A drive digital output or a serial
communication bus can communicate an alarm to other equipment.
The drive will stop running and activate a Dry pump alarm [A93]. A drive digital output or a serial
communication bus can communicate an alarm to other equipment.
Detection must be Enabled
Low Power Detection ) and commissioned
No Flow Power
Reset Mode , to [13] Infinite
Dry Pump Function is
Function:
Set the desired minimum running time for the motor after a start command (digital input or Bus)
before entering Sleep Mode.
MG.11.F3.02 - VLT
VLT HVAC Drive High Power Operating In-
If the drive is equipped with a constant speed bypass
with an automatic bypass function that starts the by-
pass if the drive experiences a persistent alarm con-
dition, be sure to disable the bypass's automatic by-
pass function, if [3] Alarm is selected as the No-Flow
Function.
If the drive is equipped with a constant speed bypass
with an automatic bypass function that starts the by-
pass if the drive experiences a persistent alarm con-
dition, be sure to disable the bypass's automatic by-
pass function, if [2] Alarm or [3] Man. Reset Alarm is
selected as the Dry Pump Function.
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