Danfoss VLT HVAC FC 100, Инструкция по эксплуатации

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22-24 No-Flow Delay
Range: Function:
10 s* [1 - 600 s] Set the time. Low Power/Low Speed must remain detected to activate signal for actions. If detection
disappears before the timer runs out, the timer will be reset.
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.
NOTE!
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.
NOTE!
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.
NOTE!
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’ 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 sleep mode should be canceled.
6 How to Program the Low Harmonic Drive
VLT HVAC Low Harmonic Drive Instruction
Manual
6-38
MG.16.A1.22 - VLT
®
is a registered Danfoss trademark
6