Danfoss VLT FC 100 Series Programming Manual page 130

3. Parameter Description
14-42 Minimum AEO Frequency
Range:
*
10Hz [5 - 40 Hz]
14-43 Motor Cosphi
Range:
3
*
0.66 [0.40 - 0.95]
3.14.7. Environment, 14-5*
These parameters help the frequency converter to operate under special environmental conditions.
14-50 RFI 1
Option:
[0] Off
*
On
[1]
14-52 Fan Control
Option:
* Auto
[0]
[1] On 50%
[2] On 75%
[3] On 100%
14-53 Fan Monitor
Option:
[0] Disabled
*
Warning
[1]
[2] Trip
14-55 Output Filter
Option:
* No filter
[0]
[1] Sine-Wave Filter
3.14.8. Auto Derate, 14-6*
This group contains parameters for derating the frequency converter in case of high temperature.
130
Function:
Enter the minimum frequency at which the Automatic Energy Optimisation (AEO) is to be active.
Function:
The Cos(phi) setpoint is automatically set for optimum AEO performance during AMA. This parameter should
normally not be altered. However in some situations it may be necessary to enter a new value to fine-tune.
Function:
Select Off [0] only if the frequency converter is fed by an isolated mains source, i.e. from a special IT mains
source.
In this mode, the internal RFI filter capacitors between chassis and the mains RFI filter circuit are cut-out to
avoid damage of the intermediate circuit and to reduce the ground capacity currents according to IEC 61800-3.
On
Select [1] to ensure that the frequency converter complies with EMC standards.
Function:
Select the minimum speed of the main fan.
Select Auto [0] to run the fan only when the internal temperature of the frequency converter is in the range
+35 °C to approximately +55°C. The fan will run at low speed at +35C and at full speed at approximately +55°
C.
Function:
Select which reaction the frequency converter should take in case a fan fault is detected.
Function:
Select the type of output filter connected. This parameter cannot be adjusted while motor is running.
MG.11.C5.02 - VLT ® is a registered Danfoss trademark
®
VLT HVAC Drive Programming Guide