software manual for propeller h60a series...2018/08/22 · h60a software manual page 7 / 12 edition...

Software Manual

for Propeller H60A series

Propeller type:

Serial No.:

Date of sale:

Stamp, Signature:

H60A Software Manual page 2 / 12

Edition 19.08.2018

Summary

1 Change set .............................................................. Fehler! Textmarke nicht definiert.

2 Description ........................................................................................................... 4

3 Bluetooth connection ............................................................................................. 4

4 Software HM10 Bluetooth Serial Pro ....................................................................... 5

5 Parameter input .................................................................................................... 9


Edition 19.08.2018

1 List of Revisions

edition (date) chapter description name

22.08.2018 all first edition RKS


Edition 19.08.2018

2 Description

This software manual describes the software and methods used to read information from the

constant speed propeller H60A, issue commands and write parameters.

The propeller is controlled by a software program that runs on a microchip.

When the aircraft engine is started, the propeller's own generator supplies power to the

controller and the stored program is started.

This program can not be changed and can only be overwritten by the service interface for an

updated version. The software version 1.00c is currently up to date.

The program uses parameters stored in a separate memory area. These parameters can be

changed via the Bluetooth connection. The change may only be made by qualified personnel,

as otherwise it is possible to risk critical flight conditions at flight operations.

3 Bluetooth connection

The connection is realized via a serial data transmission. It works only with the engine running.

By switching on an instrument that allows a Bluetooth connection, the connection is received.

There can not be multiple connections at the same time.

Currently, the following instruments are tested to establish a connection:

- Apple iPhone and iPad from iOS 9.3 with the software HM10 Bluetooth Serial

- Apple iPhone and iPad from iOS 9.3 with the software HM10 Bluetooth Serial Pro

- ... ..

There are many similar terminal applications. Keywords for searching the Internet are: Serial;

Bluetooth; terminal


Edition 19.08.2018

4 Software HM10 Bluetooth Serial Pro

The software HM10 Bluetooth Serial Pro can be installed for iPhone from iOS 9.3 via iTunes.

After starting the software, the instrument recognizes the connection to HMSoft.

On the console, the data sent by the propeller is displayed directly.

By default, these are:

Measurements: engine speed, airspeed

Regulator: control mode, control speed

Stepper Motor Controller: Propeller pitch position, status

Display Example: Short message

{“Meas:[ 2400rpm, 123km/h], Reg: [SPED, 5400rpm], SPI: [30%, RUN]},

1 Software HM10 Bluetooth Serial Pro – Functions


Edition 19.08.2018

2 Software HM10 Bluetooth Serial Pro – Console short and detailed


Edition 19.08.2018

Input box

In the input field of the instrument commands can be transmitted to the propeller control. To do

this, type in one of the listed commands, complete it with an exclamation point and send it by

tapping the Return key.

Eingebbare

Befehle

Wirkung

S Activation of the automatic mode

C Activation of the Constant-Speed mode; current speed is maintained

C 5200 Activation of the Constant-Speed mode; with speed specification

+

-

Activation of the Constant-Speed mode; current speed setting is to

100 rpm increased or decreased

1 Activating the manual mode; Slope specification flat pitch

5 As before; Slope specification medium gradient; Values from 1 to 9 are possible

9 Activating the manual mode; Slope specification steepest pitch

V Switch over the output of the control data; short <-> detailed

R Restarting the control program


Edition 19.08.2018

Input example: Switch to Constant-Speed mode

C!

From then on, the controller is in Constant-Speed mode with the engine speed measured at that

moment.

Input example: Switch to Constant-Speed mode with defined speed

C 5200!

The controller is from then on in the constant speed mode with 5200rpm engine speed.

The propeller pitch can also be specified manually. To do this, enter a whole digit from 1 to 9

and send it by tapping the Return key.

Input example: Switch to manual mode with defined propeller pitch

6!

From then on, the controller is in manual mode and controls a medium slope value. Value 1 =

flat pitch; Value = 9 steep pitch

In order to restore the normal operating mode can be switched back to automatic mode as

follows.

Input example: Switch to automatic mode

S!

The controller is then back in automatic mode.

Input screen

Entering values by keyboard is very difficult on the ground and especially in flight. To make input

easier, an input mask can be loaded from the Helix website and installed in the HM10 Bluetooth

Serial Pro software.

A typical file name is: "helse 16-28.json" The numbers "16-26" describe the adjustment angle

range of the H60A propeller to be controlled. It is a simple text file which can be loaded by the

import function of the software. After calling up the Serial Pro App, the input mask appears

under "Functions".

Pressing the "+" or "-" key also allows intermediate values of the listed control speeds.

By pressing the "Reboot" button, the controller is set to the initial state and controls in automatic

mode. This happens even when the engine comes to a standstill.


Edition 19.08.2018

5 Parameter input

In order to adapt the propeller control to a particular aircraft with its characteristic flight

characteristics, the values set by Helix must be checked by the aircraft manufacturer and

adjusted if necessary.

This is done for each of the 10 parameters by entering a command line.

The character string to be entered consists of the following 6 elements which are written

consecutively:

P as an identifier that is a parameter input

12345 a five-digit number sequence which belongs to the present propeller

authenticated

07 a two-digit number sequence indicating the parameter to be changed

04900 a five digit string indicating the parameter value

5 a check digit which prevents data transmission from accidental incorrect entries

! the conclusion of the character string ensures data transmission against

interference

Authentication

The five-digit number sequence helps the parameter commands to be sent only to the propeller

to be programmed. The number sequence is factory set to the order number (A number / A no.)

Of the respective propeller. This is indicated on each propeller on the rating plate and can be

read there to perform the programming. Should increased protection against unintentional

changes be desired, this can be implemented in the factory.

Example

Input example: Set target speed for cruising flight to 4900rpm

P1234507049005!

In order to set the parameter 07 to 04900 in this example, the character string is entered into

the input field of the HM10 Bluetooth Serial Pro software and sent by tapping the Return key.

Parameter list

Hier die Tabelle mit den veränderbaren Parametern:


Edition 19.08.2018

Parameter Nr. Beschreibung

01 Parameter Factor for taking gear reduction into account

02 Geometry options that take into account the mechanical structure of the

hub and propeller blades

03 preselected control mode at startup

04 preselected engine speed in Constant-Speed-Mode

05 Target speed at start / short-term maximum speed of the motor

06 Target speed during climb / permanent maximum speed of the engine

07 Target speed when cruising

08 Transition speed start <-> climb

09 Transition speed climb -> cruising flight

10 Transition speed cruise -> climb


Edition 19.08.2018

Parameter values

Description of the adjustable parameter values, for example:

Param.No Param.value Shortcut

unit

description

01 03906 1:1 Gear reduction factor as a multiple of 3906

08877 1:2,27 Reduction ratio Rotax 912UL

09483 1:2,43 Reduction ratio Rotax 912ULS

09943 1:2,54 Reduction ratio 915UL

02 00000

00001

00002

00003

fix Propeller geometry options

Factory pre-set

Don‘t change

03 00001 CNST Constant speed mode; (Engine rotational speed)

00002 SPED Automatic mode with flight phase detection

00003 MAN Manual mode for pitch fixing

04 05300 rpm Speed setting for Constant Speed mode

05 05800 rpm Speed specification for flight phase start

06 05400 rpm Speed specification for flight phase climb

07 04800 rpm Speed specification for flight phase cruise

08 00100 km/h Transition speed start <-> climb

09 00200 km/h Transition speed climb -> cruising flight

10 00160 km/h Transition speed cruise -> climb


Edition 19.08.2018

Check digit

For security reasons, the character string at penultimate place contains a check digit which must

first be calculated before sending. This can be done according to the following scheme.

P 1 2 3 4 5 0 1 1 2 3 4 5 9 !

A - Number Param.No Parameter-value Check digit

Add all the red numbers together 2 + 4 + 0 + 1 + 3 + 5 =15

Triple the number 3 * 15 = 45

Add the green numbers 1 + 3 + 5 + 1 + 2 + 4 + 45 = 61

The difference to the next rounded tens is the check

digit

61 + 9 = 70

software manual for propeller h60a series...2018/08/22 · h60a software manual page 7 / 12 edition...

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