Danfoss VLT HVAC Drive FC 131 Programming Manual page 172

VLT® HVAC Drive FC 131
Programming Guide
Motor speed is determined by a reference from the built-in PI controller varying the motor speed as of a
closed-loop control process (for example constant pressure or flow). Configure the PI controller in parameter
group 20-8* PI Basic Setting and parameter group 20-9* PI Controller.
24-03 Fire Mode Min Reference
Default value: 0 FireModeUnit
Conversion index: -3
The minimum reference is the lowest value obtainable by summing the references. The minimum reference value and unit matches
the choice of configuration in parameter 1-00 Configuration Mode and the unit in parameter 20-12 Reference/Feedback Unit.
Table 415: Range:
Min: -4999.0 Max: 4999.0 FireModeUnit
24-04 Fire Mode Max Reference
Default value: 50.000 FireModeUnit
Conversion index: -3
The maximum reference is the highest value obtainable by summing all references. The maximum reference value and unit matches
the choice of configuration in parameter 1-00 Configuration Mode and the unit in parameter 20-12 Reference/Feedback Unit.
Table 416: Range:
Min: -4999.0 Max: 4999.0 FireModeUnit
24-05 FM Preset Reference
Default value: 0%
Conversion index: 0
Enter the required preset reference/setpoint as a percentage of the fire mode maximum reference set in Hz.
Table 417: Range:
Min: -100%
24-06 Fire Mode Reference Source
Default value: [0] No function
Conversion index: -
Table 418: Option:
[0]
[1]
[2]
[7]
24-07 Fire Mode Feedback Source
Default value: [0] No function
Conversion index: -
This parameter defines which input on the drive should be treated as the source of the feedback signal.
172 | Danfoss A/S © 2022.05
Parameter type: Range
Data type: int32
Parameter type: Range
Data type: int32
Parameter type: Range
Data type: int16
Max: 100%
Parameter type: Option
Data type: u_int8
No function
Analog input 53
Analog input 54
Pulse input 29
Parameter type: Option
Data type: u_int8
2-setup: All setups
Change during operation: True
Default value: 0 FireModeUnit
2-setup: All setups
Change during operation: True
Default value: 50.000 FireModeUnit
2-setup: All setups
Change during operation: True
Default value: 0%
2-setup: All setups
Change during operation: True
2-setup: All setups
Change during operation: True
AU370727746889en-000101 / 130R0994
Parameters