®
VLT
HVAC Drive Programming Guide
5-50 Term. 29 Low Frequency
Range:
100 Hz*
[0 - 110000 Hz]
5-51 Term. 29 High Frequency
Range:
100 Hz*
[0 - 110000 Hz]
5-52 Term. 29 Low Ref./Feedb. Value
Range:
0.000 N/A*
[-999999.999 - 999999.999 N/A]
5-53 Term. 29 High Ref./Feedb. Value
Range:
100.000 N/
[-999999.999 - 999999.999 N/A]
A*
5-54 Pulse Filter Time Constant #29
Range:
100 ms*
[1 - 1000 ms]
5-55 Term. 33 Low Frequency
Range:
100 Hz*
[0 - 110000 Hz]
5-56 Term. 33 High Frequency
Range:
100 Hz*
[0 - 110000 Hz]
5-57 Term. 33 Low Ref./Feedb. Value
Range:
0.000 N/A*
[-999999.999 - 999999.999 N/A]
Function:
Enter the low frequency limit corresponding to the low motor shaft speed (i.e. low reference value)
Term. 29 Low Ref./Feedb. Value
in par. 5-52
Function:
Enter the high frequency limit corresponding to the high motor shaft speed (i.e. high reference
Term. 29 High Ref./Feedb. Value
value) in par. 5-53
Function:
Enter the low reference value limit for the motor shaft speed [RPM]. This is also the lowest feedback
value, see also par. 5-57
Term. 33 Low Ref./Feedb. Value
Function:
Enter the high reference value [RPM] for the motor shaft speed and the high feedback value, see
also par. 5-58
Term. 33 High Ref./Feedb. Value
Function:
Enter the pulse filter time constant. The pulse filter dampens oscillations of the feedback signal,
which is an advantage if there is a lot of noise in the system. A high time constant value results in
better dampening but also increases the time delay through the filter.
This parameter cannot be adjusted while the motor is running.
Function:
Enter the low frequency corresponding to the low motor shaft speed (i.e. low reference value) in
par. 5-57
Term. 33 Low Ref./Feedb. Value
Function:
Enter the high frequency corresponding to the high motor shaft speed (i.e. high reference value) in
Term. 33 High Ref./Feedb. Value
par. 5-58
Function:
Enter the low reference value [RPM] for the motor shaft speed. This is also the low feedback value,
Term. 29 Low Ref./Feedb. Value
see also par. 5-52
MG.11.C9.02 - VLT
®
is a registered Danfoss trademark
3 Parameter Description
. Refer to the diagram in this section.
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3
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