Danfoss VLT AutomationDrive FC 301 Programming Manual page 108

Parameter Descriptions
5-42 Off Delay, Relay
Array[20]
Range:
0.01 s [0.01 -
*
600 s]
3 3
Selected
Event
Relay
output
Illustration 3.37 Off Delay, Relay
If the selected event condition changes before the on
delay or off delay timer expires, the relay output is
unaffected.
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 (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 3.38 Pulse Input
106
Function:
Enter the delay of the relay cut out time.
Select 1 of 2 internal mechanical relays in an
array function. See parameter 5-40 Function
Relay for details. If the selected event
condition changes before a delay timer
expires, the relay output is unaffected.
On Delay O Delay
P 5-41 P 5-42
High freq.
P 5-51/
P 5-56
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®
VLT AutomationDrive FC 301/302
5-50 Term. 29 Low Frequency
Range:
100
Hz
*
5-51 Term. 29 High Frequency
Range:
100 Hz
*
5-52 Term. 29 Low Ref./Feedb. Value
Range:
0 ReferenceFeed-
backUnit
5-53 Term. 29 High Ref./Feedb. Value
Range:
Size
related
*
5-54 Pulse Filter Time Constant #29
Input
(Hz)
Range:
100
ms
*
Function:
[0 - 110000 Enter the low frequency limit
Hz] 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 3.38.
Function:
[0 - 110000 Enter the high frequency limit
Hz] 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
29 Digital Input = applicable
value).
Function:
[-999999.999 - Enter the high reference value
999999.999 [RPM] for the motor shaft speed
ReferenceFeed- and the high feedback value, see
backUnit] 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:
[1 - 1000 Enter the pulse filter time constant. The
ms] 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
MG33ML02