Danfoss VLT AutomationDrive FC 301 Programming Manual page 91

Parameter Descriptions
3.7.5 5-5* Pulse Input
The pulse input parameters are used to define an
appropriate window for the impulse reference area by
configuring the scaling and filter settings for the pulse
inputs. Input terminals 29 or 33 act as frequency reference
inputs. Set terminal 29 (5-13 Terminal 29 Digital Input) or
terminal 33 (5-15 Terminal 33 Digital Input) to [32] Pulse
input. If terminal 29 is used as an input, set 5-01 Terminal
27 Mode to [0] Input.
Ref.
(RPM)
High
ref.
value
P 5-53/
p 5-58
Low
ref.
value
P 5-52/
p 5-57
Low freq.
P 5-50/
P 5-55
Illustration 3.37 Pulse Input
5-50 Term. 29 Low Frequency
Range: Function:
100 Hz [0 - Enter the low frequency limit
*
110000 Hz] corresponding to the low motor shaft
speed (i.e. low reference value) in
5-52 Term. 29 Low Ref./Feedb. Value. Refer to
Illustration 3.37.
This parameter is available for FC 302 only.
5-51 Term. 29 High Frequency
Range: Function:
100 Hz [0 - Enter the high frequency limit
*
110000 Hz] corresponding to the high motor shaft
speed (i.e. high reference value) in
5-53 Term. 29 High Ref./Feedb. Value.
This parameter is available for FC 302 only.
5-52 Term. 29 Low Ref./Feedb. Value
Range:
0 ReferenceFeed- [-999999.999 -
backUnit 999999.999
*
ReferenceFeed-
backUnit]
®
VLT AutomationDrive FC 301/302 Programming Guide
High freq. Input
P 5-51/ (Hz)
P 5-56
Function:
Enter the low reference
value limit for the motor
shaft speed [RPM]. This is
also the lowest feedback
value, see also 5-57 Term.
33 Low Ref./Feedb. Value.
Set terminal 29 to digital
input (5-02 Terminal 29
Mode = [0] input (default)
and 5-13 Terminal 29
MG33MH02 - Rev. 2013-09-30
5-52 Term. 29 Low Ref./Feedb. Value
Range:
5-53 Term. 29 High Ref./Feedb. Value
Range:
Size [-999999.999 -
related 999999.999
*
ReferenceFeed-
backUnit]
5-54 Pulse Filter Time Constant #29
Range: Function:
100 ms [1 - Enter the pulse filter time constant. The pulse
*
1000 filter dampens oscillations of the feedback
ms] 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.
5-55 Term. 33 Low Frequency
Range: Function:
100 Hz [0 - 110000 Enter the low frequency corresponding to
*
Hz] the low motor shaft speed (i.e. low
reference value) in 5-57 Term. 33 Low Ref./
Feedb. Value.
5-56 Term. 33 High Frequency
Range: Function:
100 Hz [0 - 110000 Enter the high frequency corresponding
*
Hz] to the high motor shaft speed (i.e. high
reference value) in 5-58 Term. 33 High
Ref./Feedb. Value.
5-57 Term. 33 Low Ref./Feedb. Value
Range: Function:
0 [-999999.999 - Enter the low reference value [RPM] for
*
999999.999 ] the motor shaft speed. This is also the
low feedback value, see also 5-52 Term. 29
Low Ref./Feedb. Value.
Function:
Digital Input = applicable
value).
This parameter is
available for FC 302 only.
Function:
Enter the high reference value
[RPM] for the motor shaft 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.
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