Danfoss VLT AutomationDrive FC 300 Series Programming Manual page 87

Parameter Descriptions
5-53 Term. 29 High Ref./Feedb. Value
Range:
ReferenceFeed-
backUnit]
3 3
5-54 Pulse Filter Time Constant #29
Range:
100 [1 -
ms 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 [-999999.999 -
*
999999.999 ]
5-58 Term. 33 High Ref./Feedb. Value
Range:
Size related
*
999999.999
ReferenceFeedbackUnit]
86
Function:
speed and the high feedback
value, see also 5-58 Term. 33
High Ref./Feedb. Value. Select
terminal 29 as a digital input
(5-02 Terminal 29 Mode = [0]
input (default) and
5-13 Terminal 29 Digital Input =
applicable value).
This parameter is available for
FC 302 only.
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 is available
for FC 302 only.
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
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
5-58 Term. 33 High Ref./Feedb. Value.
Function:
Enter the low reference value
[RPM] for the motor shaft speed.
This is also the low feedback
value, see also 5-52 Term. 29 Low
Ref./Feedb. Value.
Function:
[-999999.999 - Enter the high reference
value [RPM] for the motor
shaft speed. See also
5-53 Term. 29 High Ref./
Feedb. Value.
MG33ME02 - VLT
®
VLT AutomationDrive Programmming Guide
5-59 Pulse Filter Time Constant #33
Range:
100 ms
*
NOTE
This parameter cannot be adjusted while the motor is
running.
3.7.6 5-6* Pulse Outputs
These parameters are to configure pulse outputs with their
functions and scaling. Terminal 27 and 29 are allocated to
pulse output via 5-01 Terminal 27 Mode and 5-02 Terminal
29 Mode, respectively.
NOTE
These parameters cannot be adjusted while the motor is
running.
High output
value
P 5-60(term27)
P 5-63(term29)
Illustration 3.38
Options for readout output variables:
[0] No operation
[45] Bus control
[48] Bus control time-out
[51] MCO controlled
[100] Output frequency
®
is a registered Danfoss trademark
Function:
[1 - 1000 Enter the pulse filter time constant. The
ms] low-pass filter reduces the influence on
and dampens oscillations on the feedback
signal from the control.
This is an advantage, e.g. if there is a
great amount on noise in the system.
Output value
High freq.
P 5-62(term27)
P 5-65(term29)
Parameters for configuring the
scaling and output functions of
pulse outputs. The pulse outputs
are designated to terminals 27 or
29. Select terminal 27 output in
5-01 Terminal 27 Mode and
terminal 29 output in
5-02 Terminal 29 Mode.
Output
(Hz)