Danfoss FC 300 Design Manual page 239

FC 300 Design Guide
14-4* Energy Optimizing
"
Parameters for adjusting the energy optimization
level in both Variable Torque (VT) and Automatic
Energy Optimization (AEO) mode.
14-40 VT Level
Range:
40 - 90%
Function:
Enter the level of motor magnetization 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 Magnetization
Range:
40 - 75%
Function:
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:
5 - 40 Hz
Function:
Enter the minimum frequency at which the Automatic
Energy Optimization (AEO) is to be active.
14-43 Motor Cos-Phi
Range:
0.40 - 0.95 N/A
Function:
The Cos(phi) setpoint is automatically set for
optimum AEO performance. This parameter
should normally not be altered. However in
some situations it may be necessary to enter
a new value to fine-tune.
14-5* Environment
"
Set these parameters to On [1] to ensure the
adjustable frequency drive complies with EMC
standards. Select Off [0] only when the adjustable
frequency drive is supplied from an isolated
line source, i.e., IT line supply.
* default setting ( )
How to Program
*
*
*
10 Hz
*
0.66 N/A
display text [ ] value for use in communication via serial communication port
MG.33.B6.22 - VLT is a registered Danfoss trademark
14-50 RFI 1
Option:
Off
*
On
Function:
Select On [1] to ensure the adjustable frequency
66%
drive complies with EMC standards.
Select Off [0] only when the adjustable frequency
drive is supplied from an isolated line source, i.e.,
IT line. In this mode, the internal RFI capacities
(filter capacitors) between chassis and the Line
RFI Filter circuit are cut off to avoid damage to
the intermediate circuit and to reduce the ground
capacity currents (according to IEC 61800-3).
This parameter is available for the FC 302 only.
14-52 Fan Control
40%
Option:
*
Auto
On 50%
On 75%
On 100%
Function:
Select the minimum speed of the internal fan.
Select Auto [0] to run the fan only when the internal
temperature of the adjustable frequency drive is in
the range 35 °C – approx. 55°C. The fan will run at
low speed at 35C, and at full speed at approx. 55°C.
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