TH-2 XPR Software Support   "UM" - 5x8 Universal Mixer Software                                                                                                
 

    Last updated on:1-12-19

"UM" - TH-2 XPR Universal Mixing Software

   
UM-XPR-1 software download - Zip file   Download Software
   


Creating your own custom mixing application is easy. 
Download the tutorials below.

CCPM Swash Plate example download - PDF file Download Example
   
Tandem CCPM Swash Plate example download - PDF file Download Example
   
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TH-2 XPR UM Software Users Guide

Topic Index

UM Control Software Specifications
Radio Settings

UM Control Software General Information
Software Control Settings



UM Control Software Specifications

The UM-XPR-1 software implements a Universal 5x8 mixer.  Many types of mixing applications can be
created with this software such as single and multiple CCPM swash plates mixing, drone control mixing,
VTOL type aircraft and more.

 Each of the five (5) inputs can be mixed to any of the eight (8) outputs. The gain of each mix can be set
 to +/- 0% to 100% to accommodate any direction/polarity.

The mixer software offers two (2) mixing channels "heli" and "airplane" selectable by the X input in switched mode,
Master mix mode = Switched.
The switching point is adjustable from 0% to 100%. When set to 101% the heli gains are selected full time.

There is also a blended mode in which the "heli" and "airplane" channels are blended linearly by the X input.
The outputs are the summation of H and A channels. The H channels are blended by a gain of (X - 100) and the
A channels are blended by a gain of X. 
The blended  mode could be applied to a V22 type aircraft where there is a need for both helicopter and airplane
controls and the blending provides a smooth transition between the two flight modes.

Each of the eight outputs has five H-Mode gain inputs and five A-Mode gain inputs.

 

Version: UM-XPR-1 

Number of servo outputs 8
Servo reversing All 8 outputs
Servo centering All 8 outputs with +/- 12.5% travel
Mixing channels 2, H-mode and A-mode; Selected by X-input 0..100%; Also H-mode fixed
Mixing modes 2, Switched and Blended
Required inputs 1, Pitch  Note: A gyro must not be used on the pitch input.
Optional inputs Aileron, Elevator, Rudder, Pitch, X ( for switching or blending)
Input gain control
internal
5, Aileron, Elevator, Rudder, Pitch, CH5  with 0 to 100% range
 
Input gain control
external
5, PT1..PT4 and the X input with 0 to 100% range

Note:  The X input will be available for general external gain control if it is not used as a switching/blending control.
          To use the X input for external gain control:
                     Set the Master Mix Mode to switched
.                    Set the H/A Mode Switch Point  to 101 (H-mode gains selected full time (fixed))

         There may be an application where the X input could be used as both a switching/blending control and an
         external gain control.  Be sure you fully understand these functions to avoid unexpected results.



Radio Settings

This section describes what the settings in your transmitter should be.

In general, start off with the servo travel (travel volume, end point, etc.) set to 100% for aileron, elevator, rudder, pitch and CH5. 
This will give you a good starting point.  Servo reversing will depend on how you installed your servos and the brand as well. 
All CCPM swashplate mixing must be turned off in the Tx.  Initially, all other mixing functions should be turned off as well. 

After you have things working, you can then add programmable mixes done by the TX.



UM Control Software General Information     
         

  • The TH-2 synchronizes with the pitch channel (CH-6 on most radios) and expects it to be the last pulse
    (that it "sees") in the data frame sent by the transmitter.  Also, A gyro should not be used on this channel.
     
  • When setting up the DCP it helps to turn off any cyclic component of that function to visualize it better.  This can
    be done by temporarily setting the input gain to zero (0) in the Tech Link modify settings menu.
     
  • When an input gain is set to 100% the pulse data from the TX is used as is and mixed.  At 50%, the pulse
    data from the TX is cut in half and then mixed and so on.  Reducing the gain in the TH-2 when needed,
    like for DCP, is better than doing it in the TX (ATV setting) since this would reduce the overall dynamic range. 
     
  • The gain settings also allow you to balance the amount of servo travel from the contributing channels and
    prevents clamping.  The TH-2 is set to clamp at 0.90 ms min. and 2.10 ms max. to prevent servo damage
    in the event of interference.


Software Control Settings


The TH-2 XPR UM Control Software uses control settings as programmable parameters to allow customization
for many different applications and model types.  These control settings can be modified, loaded, saved and shared
with other users using our Tech Link software.  Details of the control settings are listed below.



Servo Reversing

Modify Settings - 1

Functions:

  • Set servo direction normal/reverse.
     

Each of the eight servo outputs can be reversed individually.
This function works in addition to the reversing done in the transmitter.
Here the individual servos are reversed.  In the Tx, reversing changes the control function direction.
Click on a box to select.

     
   
     


Servo Centering

Modify Settings - 2..9

2  - Servo Centering Front Ep Output
3  - Servo Centering Front A Output
4  - Servo Centering Front E Output
5  - Servo Centering Front P Output
6  - Servo Centering Rear Ep Output
7  - Servo Centering Rear A Output
8  - Servo Centering Rear E Output
9  - Servo Centering Rear P Output

Functions:

  • Set servo centering position -12.5..12.5 percent   (-125 ...125 microseconds)
     

Each servo output center (servo neutral position) can be adjusted by+/- 12.5 percent.
This function works similarly to sub-trims in the transmitter.
Click on an arrow button or drag the slider to change.

     
   
     


H/A Mode Switch Point

Modify Settings - 10

Functions:

  • Selects the switch point from H-mode to A-mode mixing channel using the X input

    H-mode is selected when X < Switch Point

    A-mode is selected when X >= Switch Point
     
  • The switching point is adjustable from 0% to 100%
     
  • Set to 101% to stay in H-mode regardless of X-input (H-mode fixed)

Note: The X input range is clamped by the software internally to values of 0 to 100.

     
 

 

     


Master Mix Mode

Modify Settings - 11

Functions:

  • Selects Blended or Switched mixing mode
     

Switched mode
The two (2) mixing channels "heli" and "airplane" are selected by the X input in switched mode,
The switching point is adjustable from 0% to 100%. When set to 101% the H-mode gains are selected full time (fixed).

Blended mode
The two (2) mixing channels "heli" and "airplane" channels are blended linearly by the X input.
The outputs are the summation of H and A channels. The H channels are blended by a gain of (X - 100) and the
A channels are blended by a gain of X.


Note: The X input range is clamped by the software internally to values of 0 to 100.

         
     
         


H-Mode Input Gains

Modify Settings - 12..16

12 H-Mode Aileron Channel Input Gain
13 H-Mode Elevator Channel Input Gain
14 H-Mode Rudder Channel Input Gain
15 H-Mode Pitch Channel Input Gain
16 H-Mode CH5 Channel Input Gain

Functions:

  • Adjust internal gain 0..100 percent
  • Select gain source
     

The input gain source can be selected as internal or to one of the external sources - PT1..PT4 or the X input.
The internal setting is only active when the source is set to internal.
Internal gain settings can only be set via USB with Tech-Link.

Note: One or more input gains can be set to the same external gain source (shared).
It is your choice on how to assign them.  Write down your settings for use when away from the PC.
For this software, all five external gains have a positive range of 0..100 percent.

Note: The dialog window below is one example of the five (5) H-mode input gain settings.

     
   
     


A-Mode Input Gains

Modify Settings - 17..21

17 A-Mode Aileron Channel Input Gain
18 A-Mode Elevator Channel Input Gain
19 A-Mode Rudder Channel Input Gain
20 A-Mode Pitch Channel Input Gain
21 A-Mode CH5 Channel Input Gain

Functions:

  • Adjust internal gain 0..100 percent
  • Select gain source
     

The input gain source can be selected as internal or to one of the external sources - PT1..PT4 or the X input.
The internal setting is only active when the source is set to internal.
Internal gain settings can only be set via USB with Tech-Link.

Note: One or more input gains can be set to the same external gain source (shared).
It is your choice on how to assign them.  Write down your settings for use when away from the PC.
For this software, all five external gains have a positive range of 0..100 percent.

Note: The dialog window below is one example of the five (5) A-mode input gain settings.

     
   
     


H-Mode Mixing Channels

Modify Settings - 22..61

Functions:

  • Adjust Input to Output mixing gain -100 to +100 percent
     

These settings determine the mixing between the inputs to the outputs.
Note: The dialog window below is one example of forty (40) H-mode mixing channel settings.

     
   
     

22 H-Mode Aileron CH Mix to Front Ep Output
23 H-Mode Aileron CH Mix to Front A Output
24 H-Mode Aileron CH Mix to Front E Output
25 H-Mode Aileron CH Mix to Front P Output
26 H-Mode Aileron CH Mix to Rear Ep Output
27 H-Mode Aileron CH Mix to Rear A Output
28 H-Mode Aileron CH Mix to Rear E Output
29 H-Mode Aileron CH Mix to Rear P Output
30 H-Mode Elevator CH Mix to Front Ep Output
31 H-Mode Elevator CH Mix to Front A Output
32 H-Mode Elevator CH Mix to Front E Output
33 H-Mode Elevator CH Mix to Front P Output
34 H-Mode Elevator CH Mix to Rear Ep Output
35 H-Mode Elevator CH Mix to Rear A Output
36 H-Mode Elevator CH Mix to Rear E Output
37 H-Mode Elevator CH Mix to Rear P Output
38 H-Mode Pitch CH Mix to Front Ep Output
39 H-Mode Pitch CH Mix to Front A Output
40 H-Mode Pitch CH Mix to Front E Output
41 H-Mode Pitch CH Mix to Front P Output
42 H-Mode Pitch CH Mix to Rear Ep Output
43 H-Mode Pitch CH Mix to Rear A Output
44 H-Mode Pitch CH Mix to Rear E Output
45 H-Mode Pitch CH Mix to Rear P Output
46 H-Mode Rudder CH Mix to Front Ep Output
47 H-Mode Rudder CH Mix to Front A Output
48 H-Mode Rudder CH Mix to Front E Output
49 H-Mode Rudder CH Mix to Front P Output
50 H-Mode Rudder CH Mix to Rear Ep Output
51 H-Mode Rudder CH Mix to Rear A Output
52 H-Mode Rudder CH Mix to Rear E Output
53 H-Mode Rudder CH Mix to Rear P Output
54 H-Mode CH5 CH Mix to Front Ep Output
55 H-Mode CH5 CH Mix to Front A Output
56 H-Mode CH5 CH Mix to Front E Output
57 H-Mode CH5 CH Mix to Front P Output
58 H-Mode CH5 CH Mix to Rear Ep Output
59 H-Mode CH5 CH Mix to Rear A Output
60 H-Mode CH5 CH Mix to Rear E Output
61 H-Mode CH5 CH Mix to Rear P Output

 



A-Mode Mixing Channels

Modify Settings - 62..101

Functions:

  • Adjust Input to Output mixing gain -100 to +100 percent
     

These settings determine the mixing between the inputs to the outputs.
Note: The dialog window below is one example of forty (40) A-Mode mixing channel settings.

     
   
     


62 A-Mode Aileron CH Mix to Front Ep Output
63 A-Mode Aileron CH Mix to Front A Output
64 A-Mode Aileron CH Mix to Front E Output
65 A-Mode Aileron CH Mix to Front P Output
66 A-Mode Aileron CH Mix to Rear Ep Output
67 A-Mode Aileron CH Mix to Rear A Output
68 A-Mode Aileron CH Mix to Rear E Output
69 A-Mode Aileron CH Mix to Rear P Output
70 A-Mode Elevator CH Mix to Front Ep Output
71 A-Mode Elevator CH Mix to Front A Output
72 A-Mode Elevator CH Mix to Front E Output
73 A-Mode Elevator CH Mix to Front P Output
74 A-Mode Elevator CH Mix to Rear Ep Output
75 A-Mode Elevator CH Mix to Rear A Output
76 A-Mode Elevator CH Mix to Rear E Output
77 A-Mode Elevator CH Mix to Rear P Output
78 A-Mode Pitch CH Mix to Front Ep Output
79 A-Mode Pitch CH Mix to Front A Output
80 A-Mode Pitch CH Mix to Front E Output
81 A-Mode Pitch CH Mix to Front P Output
82 A-Mode Pitch CH Mix to Rear Ep Output
83 A-Mode Pitch CH Mix to Rear A Output
84 A-Mode Pitch CH Mix to Rear E Output
85 A-Mode Pitch CH Mix to Rear P Output
86 A-Mode Rudder CH Mix to Front Ep Output
87 A-Mode Rudder CH Mix to Front A Output
88 A-Mode Rudder CH Mix to Front E Output
89 A-Mode Rudder CH Mix to Front P Output
90 A-Mode Rudder CH Mix to Rear Ep Output
91 A-Mode Rudder CH Mix to Rear A Output
92 A-Mode Rudder CH Mix to Rear E Output
93 A-Mode Rudder CH Mix to Rear P Output
94 A-Mode CH5 CH Mix to Front Ep Output
95 A-Mode CH5 CH Mix to Front A Output
96 A-Mode CH5 CH Mix to Front E Output
97 A-Mode CH5 CH Mix to Front P Output
98 A-Mode CH5 CH Mix to Rear Ep Output
99 A-Mode CH5 CH Mix to Rear A Output
100 A-Mode CH5 CH Mix to Rear E Output
101 A-Mode CH5 CH Mix to Rear P Output
 


 

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