Danfoss VLT HVAC Drive - Page 94

22-24 No-Flow Delay
Value:
0-600 sec.
10 sec.
Function:
Set the time. Low Power/Low Speed must stay
detected to activate signal for actions. If de-
tection disappears before the timer runs out,
the timer will be reset.
22-26 Dry Pump Function
Value:
Off [0]
Warning [1]
Alarm [2]
Function:
Low Power Detection must be enabled (par.
22-21) and commissioned (using either par.
22-3*,
No-Flow Power Tuning , or Auto Set-
Up
, Par. 22-20) in order to use dry pump
detection.
Warning: Messages in the local control panel
display (if mounted) and/or signal via a relay
or a digital output.
Alarm: The adjustable frequency drive trips
and the motor stays stopped until reset.
22-40 Minimum Run Time
Value:
0 - 600 s
10 s
Function:
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
Value:
0 - 600 s
10 s
Function:
Set the desired minimum time for remaining
in sleep mode. This will override any wake-up
conditions.
22-42 Wake-Up Speed [RPM]
Value:
par. 4-11 (Motor Speed Low Limit) - Par.
4-13 (Motor Speed High Limit)
Function:
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,
Con-
figuration Mode
, is set for open-loop and
speed reference is applied by an external con-
troller.
Set the reference speed at which the Sleep
Mode should be cancelled.
22-60 Broken Belt Function
Value:
Disabled [0]
Warning [1]
Trip [2]
Function:
Selects the action to be performed if the bro-
ken belt condition is detected
22-61 Broken Belt Torque
Value:
0 - 100%
10%
Function:
Sets the broken belt torque as a percentage
of the rated motor torque.
6. How to program the adjustable frequency
drive
VLT
®
HVAC Drive Instruction Manual
94 MG.11.A4.22 - VLT
®
is a registered Danfoss trademark
6