Danfoss VLT User Manual

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:
0 RPM* [par. 4-11 - par. 4-13 RPM] 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.
22-60 Broken Belt Function
Option: Function:
Selects the action to be performed if the broken belt condition is detected.
[0] * OFF
[1] Warning
[2] Trip
22-61 Broken Belt Torque
Range: Function:
10 %* [0 - 100 %] Sets the broken belt torque as a percentage of the rated motor torque.
22-62 Broken Belt Delay
Range: Function:
10 s [0 - 600 s] Sets the time for which the broken belt conditions must be active before carrying out the action
selected in par.22-60
Broken Belt Function .
22-75 Short Cycle Protection
Option: Function:
[0] * Disabled Timer set in par.22-76 Interval between Starts is disabled.
[1] Enabled Timer set in par.22-76
Interval between Starts is enabled.
22-76 Interval between Starts
Range: Function:
par. 22-77
s*
[par. 22-77 - 3600 s] Sets the time desired as minimum time between two starts. Any normal start command (Start/Jog/
Freeze) will be disregarded until the timer has expired.
22-77 Minimum Run Time
Range: Function:
0 s* [0 - par. 22-76 s] Sets the time desired as minimum run time after a normal start command (Start/Jog/Freeze). Any
normal stop command will be disregarded until the set time has expired. The timer will start counting
following a normal start command (Start/Jog/Freeze).
The timer will be overridden by a Coast (Inverse) or an External Interlock command.
6 How to program the adjustable frequency
drive
VLT
®
HVAC Drive Instruction Manual
6-50 MG.11.A9.22 - VLT
®
is a registered Danfoss trademark
6

Danfoss VLT Specifications

General

Frequency	50/60 Hz
Enclosure	IP20, IP21, IP55, IP66
Series	VLT
Control Technique	Flux Vector Control
Output Voltage	0-Vinput
Control Method	Fieldbus
Communication Interface	PROFIBUS, CANopen
Protection Features	Overload, Overvoltage, Undervoltage, Short Circuit, Ground Fault
Cooling Method	Liquid Cooled
Storage Temperature	-25°C to +70°C
Relative Humidity	5-95% non-condensing
Altitude	Up to 1000m (3280ft) without derating, up to 4000m (13120ft) with derating
Operating Temperature	-10°C to +50°C (14°F to 122°F)