Danfoss VLT HVAC Drive FC 131 Programming Manual page 63

VLT® HVAC Drive FC 131
Programming Guide
The jog speed is a fixed output speed at which the drive runs when the jog function is activated. See also parameter 3-80 Jog Ramp
Time.
Table 99: Range:
Min: 0 Hz
3-14 Preset Relative Reference
Default value: 0%
Conversion index: -2
Define the fixed value in % to be added to the variable value defined in parameter 3-18 Relative Scaling Reference Resource.
The sum of fixed and variable values (labeled Y in the following illustration) is multiplied by actual reference (labeled X in the follow-
ing illustration). This product is added to actual reference:
Y
X + X ×
100
Y
Resulting
Relative Z
actual
X
Z=X+X*Y/100
reference
Illustration 10: Preset Relative Reference
Table 100: Range:
Min: -100%
3-15 Reference 1 Source
Default value: [1] Analog Input 53
Conversion index: -
Select the input to be used for the 1
parameter 3-17 Reference 3 Source define up to 3 different reference signals. The sum of these reference signals defines the actual
reference.
Table 101: Option:
[0]
[1]
[2]
[7]
[11]
3-16 Reference 2 Source
Default value: [2] Analog Input 54
Conversion index: -
Select the input to be used for the 2
parameter 3-17 Reference 3 Source define up to 3 different reference signals. The sum of these reference signals defines the actual
reference.
Danfoss A/S © 2022.05
Max: 500.0 Hz
Parameter type: Range
Data type: int16
Max: 100%
Parameter type: Option
Data type: u_int8
st
reference signal. Parameter 3-15 Reference 1 Source, parameter 3-16 Reference 2 Source, and
No function
Analog Input 53
Analog Input 54
Pulse input 29
Local bus reference
Parameter type: Option
Data type: u_int8
nd
reference signal. Parameter 3-15 Reference 1 Source, parameter 3-16 Reference 2 Source, and
Default value: 5 Hz
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
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Parameters