22-26 Dry Pump Function
Select desired action for dry pump operation.
Option: Function:
[0] * Off
[1] Warning 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.
[2] Alarm 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.
[3] Man. Reset Alarm 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.
NB!
Low Power Detection
must be Enabled (par. 22-21
Low Power Detection
) and commissioned (using either parameter group 22-3*,
No
Flow Power Tuning
, or par. 22-20
Low Power Auto Set-up
) in order to use Dry Pump Detection.
NB!
Do not set par. 14-20
Reset Mode
, to [13] Infinite auto reset, when par. 22-26
Dry Pump Function
is set to [2] Alarm. Doing so will
cause the drive to continuously cycle between running and stopping when a Dry Pump condition is detected.
NB!
If the drive is equipped with a constant speed bypass with an automatic bypass function that starts the bypass if the drive experiences
a persistent alarm condition, be sure to disable the bypass’s automatic bypass function, if [2] Alarm or [3] Man. Reset Alarm is selected
as the Dry Pump Function.
22-40 Minimum Run Time
Range: Function:
10 s* [0 - 600 s] Set the desired minimum running time for the motor after a start command (digital input or Bus)
before entering Sleep Mode.
22-41 Minimum Sleep Time
Range: Function:
10 s* [0 - 600 s] Set the desired Minimum Time for staying in Sleep Mode. This will override any wake up conditions.
22-42 Wake-up Speed [RPM]
Range: Function:
Application
dependent*
[Application dependant] To be used if par. 0-02
Motor Speed Unit
has been set for RPM (parameter not visible if Hz selected).
Only to be used if par. 1-00
Configuration Mode
is set for Open Loop and speed reference is applied
by an external controller.
Set the reference speed at which the Sleep Mode should be cancelled.
22-60 Broken Belt Function
Selects the action to be performed if the Broken Belt condition is detected
Option: Function:
[0] * Off
[1] Warning The drive will continue to run, but activate a Broken Belt Warning [W95]. A drive digital output or
a serial communication bus can communicate a warning to other equipment.
[2] Trip The drive will stop running and activate a Broken Belt alarm [A 95]. A drive digital output or a serial
communication bus can communicate an alarm to other equipment.
VLT HVAC Low Harmonic Drive Operating In-
structions 6 How to Programme the Low Harmonic Drive
MG.16.A1.02 - VLT
®
is a registered Danfoss trademark 117
6
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