Trane TR200 Series - Main Menu - Reference;Ramps - Group 3

Main Menu - Reference/Ramps - Group 3
3-0* Reference Limits
Parameters for setting the reference unit, limits and ranges.
Please see also par. 20-0* for information on settings
in closed loop.
3-02 Minimum Reference
Range: Function:
0.000
Referen-
ceFeed-
backU-
nit*
[-999999.999 - par. 3-03
ReferenceFeedbackUnit]
Enter the Minimum Reference. The Minimum Reference is the lowest
value obtainable by summing all references. The Minimum Reference
value and unit matches the configuration choice made in par.1-00
Con-
figuration Mode and par.20-12 Reference/Feedback Unit, respectively.
NOTE: This parameter is used in open loop only.
3-03 Maximum Reference
Range: Function:
50.000
Referen-
ceFeed-
backU-
nit*
[par. 3-02 - 999999.999 Ref-
erenceFeedbackUnit]
Enter the maximum acceptable value for the remote reference. The Max-
imum Reference value and unit matches the configuration choice made
in par.1-00
Configuration Mode and par.20-12 Reference/Feedback Unit,
respectively.
NOTE: If operating with par.1-00
Configuration Mode set for Closed Loop
[3], par.20-14
Maximum Reference/Feedb. must be used.
3-04 Reference Function
Option: Function:
[0] * Sum Sums both external and preset reference sources.
[1] External/Preset Use either the preset or the external reference source.
Shift between external and preset via a command on a digital input.
3-1* References
Parameters for setting up the reference sources.
Select the preset reference(s).
Select Preset ref. bit 0 / 1 / 2 [16], [17] or [18] for the corresponding digital inputs
in par. group 5-1*.
3-10 Preset Reference
Array [8]
Range: Function:
0.00 %* [-100.00 - 100.00 %] Enter up to eight different preset references (0-7) in this parameter, using
array programming. The preset reference is stated as a percentage of the
value Ref
MAX
(par.3-03
Maximum Reference, for closed loop see par.
20-14
Maximum Reference/Feedb.). When using preset references, select
Preset ref. bit 0 / 1 / 2 [16], [17] or [18] for the corresponding digital inputs
in parameter group 5-1* Digital Inputs.
Parameter Description
TR200 Programming Guide 73