Danfoss VLT HVAC Drive FC 131 Programming Manual page 84

VLT® HVAC Drive FC 131
Programming Guide
Selected
event
Relay
output
On delay
P 5-41
Illustration 13: Off Delay, Relay
If the selected event condition changes before the off delay timer expires, the relay output is unaffected.
Table 139: Range:
Min: 0 s
4.7.5 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 act as frequency reference inputs. Set terminal 29 (parameter 5-13 Terminal 29
Digital Input) to [32] Pulse input. If terminal 29 is used as an input, set parameter 5-02 Terminal 29 Mode to [0] Input.
Ref.
(RPM)
High
ref.
value
P 5-53
Low
ref.
value
P 5-52
Low freq.
P 5-50
Illustration 14: Pulse Input
5-50 Term. 29 Low Frequency
Default value: 20 Hz
Conversion index: -
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.
Table 140: Range:
Min: 20 Hz
5-51 Term. 29 High Frequency
Default value: 32000 Hz
Conversion index: -
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.
84 | Danfoss A/S © 2022.05
Off delay
P 5-42
Max: 600 s
High freq.
P 5-51
Parameter type: Range
Data type: u_int32
Max: 31999 Hz
Parameter type: Range
Data type: u_int32
Default value: 0.01 s
Input
(Hz)
2-setup: All setups
Change during operation: True
Default value: 20 Hz
2-setup: All setups
Change during operation: True
Parameters
AU370727746889en-000101 / 130R0994