Danfoss VLT AQUA Drive FC 202 Programming Manual Download Page 140

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14-43 Motor Cosphi

Range:

Function:

0.66
N/A

[0.40 -
0.95
N/A]

NOTICE

This parameter is not active when

parameter 1-10 Motor Construction

is set

[1] PM, non-salient SPM

The Cos(phi) setpoint is automatically set to
optimum AEO performance during AMA. Under
normal circumstances, do NOT alter this
parameter. However, in some situations it may
be necessary to enter a new value to fine-tune.

3.13.6 14-5* Environment

NOTICE

Perform a power cycle after changing any of the
parameters in

parameter group 14-5* Environment

These parameters help the frequency converter to operate
under special environmental conditions.

14-50 RFI Filter

Option: Function:

[0]

Off Select

[0] Off

only when the frequency converter is

supplied from an isolated mains source, that is, IT
mains. In this mode, the internal RFI capacities (filter
capacitors) between chassis and the mains RFI filter
circuit is cut off to avoid damage to the DC link and
to reduce the ground capacity currents (according to
IEC 61800-3).

[1]

On Select

[1] On

to ensure that the frequency converter

complies with EMC standards.

14-51 DC-Link Compensation

Option: Function:

The rectified AC-DC voltage in the frequency converter's
DC link is associated with voltage ripples. These ripples
can increase in magnitude with increased load. These
ripples are undesirable because they can generate
current and torque ripples. A compensation method is
used to reduce these voltage ripples in the DC link. In
general, DC-link compensation is recommended for
most applications, but pay attention when operating in
field weakening as it can generate speed oscillations at
the motor shaft. In field weakening, turn off DC-link
compensation.

[0] Off Disables DC-link compensation.

[1] On Enables DC-link compensation.

14-52 Fan Control

Option:

Function:

Select the minimum speed of the main fan.

14-52 Fan Control

Option:

Function:

[0]

Auto

Select

[0] Auto

to run the fan only when the

internal temperature of the frequency
converter is in the range 35

C (95

F) to

approximately 55

C (131

F). The fan runs at

low speed at 35

C (95

F) and at full speed

at approximately 55

C (131

F).

[1]

On 50%

[2]

On 75%

[3]

On 100%

[4]

Auto (Low
temp env.)

14-53 Fan Monitor

Option:

Function:

Select the frequency converter action if a fan
fault is detected.

[0]

Disabled

[1]

Warning

[2]

Trip

14-55 Output Filter

Option:

Function:

NOTICE

This parameter cannot be adjusted
while the motor is running.

Select the type of output filter connected.

[0]

No Filter

[1]

Sine-Wave Filter

14-56 Capacitance Output Filter

Enter the capacitance of the output filter. Find the value on the
filter label. For the compensation function of the LC filter in the
star connection, enter the per phase equivalent capacitance of
the filter (3 times the capacitance between 2 phases in the delta
connection).

Range:

Function:

2.0 uF

[0.1 - 6500.0 uF]

Enter the capacitance of
the output filter.

14-57 Inductance Output Filter

Range:

Function:

7.000 mH

[0.001 - 65.000
mH]

Set the inductance of the output
filter. The value can be found on
the filter label.

14-58 Voltage Gain Filter