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14-40 VT Level
Range:
Function:
66 %*
[40 - 90 %]
Enter the level of motor magnetisation at low speed. Selection of a low value reduces energy loss
in the motor, but also reduces load capability.
This parameter cannot be adjusted while the motor is running.
14-41 AEO Minimum Magnetisation
Range:
Function:
40. %*
[40 - 75 %]
Enter the minimum allowable magnetisation for AEO. Selection of a low value reduces energy loss
in the motor, but can also reduce resistance to sudden load changes.
14-42 Minimum AEO Frequency
Range:
Function:
10 Hz*
[5 - 40 Hz]
Enter the minimum frequency at which the Automatic Energy Optimisation (AEO) is to be active.
14-43 Motor Cosphi
Range:
Function:
0.66*
[0.40 - 0.95]
The Cos(phi) setpoint is automatically set for optimum AEO performance during AMA. This param-
eter should normally not be altered. However in some situations it may be necessary to enter a new
value to fine-tune.
2.13.7 14-5* Environment
These parameters help the frequency converter to operate under special environmental conditions.
14-50 RFI 1
Option:
Function:
[0]
Off
[1] *
On
Select
On
[1] to ensure the frequency converter complies with EMC standards.
Select
Off
[0] only when the frequency converter is supplied from an isolated mains source, i.e. IT
mains. In this mode, the internal RFI capacities (filter capacitors) between chassis and the Mains
RFI Filter circuit are cut off to avoid damage to the intermediate circuit and to reduce the earth
capacity currents (according to IEC 61800-3).
14-52 Fan Control
Option:
Function:
Select the minimum speed of the main fan.
[0] *
Auto
Select Auto [0] to run the fan only when the internal temperature of the frequency converter is in
the range +35
°
C to approxi55
°
C. The fan will run at low speed at +35
°
C and at full speed
at approxi55
°
C.
[1]
On 50%
[2]
On 75%
[3]
On 100%
14-53 Fan Monitor
Option:
Function:
Select which reaction the frequency converter should take in case a fan fault is detected.
[0]
Disabled
[1] *
Warning
[2]
Trip
2 Parameter Description
VLT
®
AQUA Drive Programming Guide
140
MG.20.O4.02 - VLT
®
is a registered Danfoss trademark
2