Danfoss VLT Programming Guide

but in addition the AEO feature will adapt the voltage exactly to the current load situation, thereby
reducing energy consumption and audible noise from the motor. To obtain optimal performance,
the motor power factor cos phi must be set correctly. This value is set in par. 14-43
Motor Cosphi .
The parameter has a default value and is automatically adjusted when the motor data is program-
med. These settings will typically ensure optimum motor voltage but if the motor power factor cos
phi requires tuning, an AMA function can be carried out using par. 1-29
Automatic Motor Adaptation
(AMA)
. It is very rarely necessary to adjust the motor power factor parameter manually.
1-06 Clockwise Direction
This parameter defines the term “Clockwise” corresponding to the LCP direction arrow. Used for easy change of direction of shaft rotation without
swapping motor wires. (Valid from SW version 5.84)
Option: Function:
[0] * Normal Motor shaft will turn in clockwise direction when frequency converter is connected U -> U; V -> V,
and W -> W to motor.
[1] Inverse Motor shaft will turn in counter clockwise direction when frequency converter is connected U -> U;
V -> V, and W -> W to motor.
This parameter cannot be changed while the motor is running.
3.3.2 1-2* Motor Data
Parameter group 1-2* comprises input data from the nameplate on the connected motor.
Parameters in parameter group 1-2* cannot be adjusted while the motor is running.
NB!
Changing the value of these parameters affects the setting of other parameters.
1-20 Motor Power [kW]
Range: Function:
Application
dependent*
[Application dependant] Enter the nominal motor power in kW according to the motor nameplate data. The default value
corresponds to the nominal rated output of the unit.
This parameter cannot be adjusted while the motor is running. Depending on the choices made in
par. 0-03
Regional Settings , either par. 1-20 Motor Power [kW] or par. 1-21 Motor Power [HP] is
made invisible.
1-21 Motor Power [HP]
Range: Function:
Application
dependent*
[Application dependant] Enter the nominal motor power in HP according to the motor nameplate data. The default value
corresponds to the nominal rated output of the unit.
This parameter cannot be adjusted while the motor is running.
Depending on the choices made in par. 0-03
Regional Settings , either par. 1-20 Motor Power
[kW]
or par. 1-21 Motor Power [HP] is made invisible.
1-22 Motor Voltage
Range: Function:
Application
dependent*
[Application dependant] Enter the nominal motor voltage according to the motor nameplate data. The default value corre-
sponds to the nominal rated output of the unit.
This parameter cannot be adjusted while the motor is running.
VLT
®
HVAC Drive Programming Guide 3 Parameter Description
MG.11.C9.02 - VLT
®
is a registered Danfoss trademark 49
3

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)