14-42 Minimum AEO Frequency
Range:
Function:
Size
related
*
[0 - 40 Hz]
NOTICE
This parameter is not active
when
parameter 1-10 Motor
Construction
is set to
[1] PM
non-salient SPM
.
Enter the minimum frequency at
which the automatic energy optimi-
zation (AEO) is to be active.
14-43 Motor Cosphi
Range:
Function:
Size
related
*
[0.40 - 0.95]
The Cos(phi) setpoint is automat-
ically 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.
4.13.5 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
Turn the RFI filter on or off. The RFI filter ensures that the
frequency converter complies with EMC standards. Select
[0] Off
only when the frequency converter is connected to an isolated
mains source (IT mains).
Option:
Function:
[0]
Off
[1]
*
On
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
14-51 DC-Link Compensation
Option:
Function:
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
Select minimum speed of the main fan.
Option:
Function:
[0]
*
Auto
Select
[0] Auto
to run fan only
when internal temperature in
frequency converter is in range
35
°
C (95
°
F) to approximately
55
°
C (131
°
F).
Fan runs at low speed below 35
°
C
(95
°
F), and at full speed at approx-
imately 55
°
C (131
°
F).
[1]
On 50%
The fan always runs at 50% speed
or above. The fan runs at 50%
speed at 35
°
C (95
°
F), and at full
speed at approximately 55
°
C
(131
°
F).
[2]
On 75%
The fan always runs at 75% speed
or above. The fan runs at 75%
speed at 35
°
C (95
°
F), and at full
speed at approximately 55
°
C
(131
°
F).
[3]
On 100%
The fan always runs at 100% speed.
[4]
Auto (Low
temp env.)
This option is the same as
[0] Auto
,
but with special considerations
around and below 0
°
C (32
°
F). In
option
[0] Auto
there is a risk that
the fan starts running at around
0
°
C as the frequency converter
detects a sensor fault and thus
protects the frequency converter
while reporting
warning 66, Heat
sink Temperature Low
. Option
[4]
Auto (Low temp env.)
can be used in
very cold environments and
prevents the negative effects of this
further cooling and avoids
warning
66, Heat sink Temperature Low
.
Parameter Descriptions
Programming Guide
MG06J202
Danfoss A/S © 03/2019 All rights reserved.
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