Danfoss VLT AutomationDrive FC 301 Programming Manual page 108

Parameter Descriptions
3.6.5 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
3 3
inputs. Input terminals 29 or 33 act as frequency reference
inputs. Set terminal 29 (parameter 5-13 Terminal 29 Digital
Input) or terminal 33 (parameter 5-15 Terminal 33 Digital
Input) to [32] Pulse input. If terminal 29 is used as an input,
set parameter 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 3.39 Pulse Input
5-50 Term. 29 Low Frequency
Range:
100 [0 - 110000
Hz Hz]
*
5-51 Term. 29 High Frequency
Range:
100 Hz [0 - 110000
*
Hz]
5-52 Term. 29 Low Ref./Feedb. Value
Range:
0.000 Reference-
FeedbackUnit
*
106
VLT
High freq.
P 5-51/
P 5-56
Function:
Enter the low frequency limit
corresponding to the low motor shaft
speed (that is low reference value) in
parameter 5-52 Term. 29 Low Ref./Feedb.
Value. Refer to Illustration 3.39.
Function:
Enter the high frequency limit
corresponding to the high motor shaft
speed (that is high reference value) in
parameter 5-53 Term. 29 High Ref./Feedb.
Value.
Function:
[-999999.999 - Enter the low reference
999999.999 value limit for the motor
ReferenceFeed- shaft speed [RPM]. This is
backUnit] also the lowest feedback
value, see also
parameter 5-57 Term. 33 Low
Ref./Feedb. Value. Set
terminal 29 to digital input
(parameter 5-02 Terminal 29
Mode = [0] input (default)
and parameter 5-13 Terminal
Danfoss A/S © 01/2018 All rights reserved.
®
AutomationDrive FC 301/302
5-52 Term. 29 Low Ref./Feedb. Value
Range:
5-53 Term. 29 High Ref./Feedb. Value
Range:
1500.000
ReferenceFeed-
backUnit
*
Input
(Hz)
5-54 Pulse Filter Time Constant #29
Range:
100 [1 - 1000
ms 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]
Function:
29 Digital Input = applicable
value).
Function:
[-999999.999 - Enter the high reference
999999.999 value [RPM] for the motor
ReferenceFeed- shaft speed and the high
backUnit] feedback value, see also
parameter 5-58 Term. 33 High
Ref./Feedb. Value. Select
terminal 29 as a digital
input
(parameter 5-02 Terminal 29
Mode = [0] input (default)
and parameter 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.
Function:
Enter the low frequency corresponding
to the low motor shaft speed (that is
low reference value) in
parameter 5-57 Term. 33 Low Ref./Feedb.
Value.
Function:
Enter the high frequency corresponding
to the high motor shaft speed (that is
high reference value) in
parameter 5-58 Term. 33 High Ref./Feedb.
Value.
MG33MO02