Danfoss vlt aqua Programming Guide

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:
[par. 4-11 (Motor
Speed Low Limit) -
Par. 4-13 (Motor
Speed High Limit)]
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 ref-
erence is applied by an external controller.
Set the reference speed at which the Sleep Mode should be
cancelled.
22-43 Wake-up Speed [Hz]
Range: Function:
[Par. 4-12 (Motor
Speed Low Limit) -
Par. 4-14 (Motor
Speed High Limit)]
To be used if par. 0-02,
Motor Speed Unit , has been set for Hz
(parameter not visible if RPM selected). Only to be used if par.
1-00,
Configuration Mode , is set for Open Loop and speed ref-
erence is applied by an external controller controlling the pres-
sure.
Set the reference speed at which the Sleep Mode should be
cancelled.
22-44 Wake-up Ref./FB Difference
Range: Function:
10%
*
[0-100%] Only to be used if par. 1-00, Configuration Mode , is set for
Closed Loop and the integrated PI controller is used for con-
trolling the pressure.
Set the pressure drop allowed in percentage of set point for the
pressure (Pset) before cancelling the Sleep Mode.
NB!
If used in application where the integrated PI con-
troller is set for inverse control in par. 20-71,
PID,
Normal/Inverse Control
, the value set in par.
22-44 will automatically be added.
22-45 Set Point Boost
Range: Function:
0%
*
[-100% - +100%] Only to be used if par. 1-00, Configuration Mode , is set for
Closed Loop and the integrated PI controller is used. In systems
with e.g. constant pressure control, it is advantageous to in-
crease the system pressure before the motor is stopped. This
will extend the time in which the motor is stopped and help to
avoid frequent start/stop.
2. Parameter Description VLT
®
AQUA Drive Programming Guide
204 MG.20.O2.02 - VLT
®
is a registered Danfoss trademark
2

Danfoss vlt aqua Specifications

General

Supply Voltage	200-240V, 380-500V, 525-600V
Enclosure	IP20
Features	Energy optimization
Approvals	CE, UL, cUL
Input Voltage Range	200-240V, 380-500V, 525-600V
Output Voltage Range	0 to supply voltage
Protection Features	Overvoltage, Undervoltage, Overcurrent, Short circuit, Ground fault
Communication Interfaces	PROFIBUS
Cooling Method	Air-cooled