Manual Graupner MC18 (page 29 of 56) (English)

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Code 63

Channel 1 Switch

Automatic Channel 1 Dependent Switch (Throttle/Spoiler)

For special functions it is desirable not to perform

switching by an external switch, but automatically via

the channel 1 stick (throttle and spoiler), whereby

exceeding a critical stick position provides switch

position ON, while falling below provides switch

position 0, or vice versa.

The threshold point can be placed anywhere along

the stick travel and the modeller can decide whether

the upper or lower portion is to activate switch

position to the ON state. The automatic switch is

allocated to one of the external switch connectors

(1…8) whereby it is unrestrictedly included into the

free programmability of the external switches via

codes 23, 33 and 34.

If a normal switch is also wired to this connection, the

two switches (e.g. the external switch and the

automatic one) will be wired in parallel. With reversal

of polarity being possible with either type of switch,

logical links between the two of them can be realised.

“AND“ Link

Both switches must be closed so the connected

function(s) can be performed.

“OR” Link

The connected function(s) is (are) performed when

either switch is closed.

As a result the external switch may be used to

perform automatic switch over by the stick. By

including the automatic switch into a free allocation of

external switch any combination of functions can be

switched in dependency of the control stick position.

So, by turning on the correspondingly programmed

misers, flaps can be lowered when throttling the

engine and the elevator re-trimmed (Auto-Landing), or

dual-rates may be switched to increase control

surface throw in the landing approach at reduced

speed. Pilots of electric flight models can turn the

timer on and off via the automatic switch for checking

motor run synchronously with the main drive motor.

Programming:

After calling, via code 63, the transmitter, as in the

above display, indicates it is waiting for the input of

the external switch connection (1…8), to which the

automatic switch is to be allocated. After the

connection number (e.g. “6”) has been input the

display will read like:

- S

I T

Here the interaction of the automatic switch and a

possibly connected external switch is shown. The

stylised control stick at the left of the lower line

indicates the direction of deflection of the

throttle/spoiler stick with the switch in the open

position. Direction can be reversed by hitting the

TURN key.

The switch state (open or closed) of the channel 1

switch is indicated in the centre of the lower line. By

moving the stick the function can be checked and the

threshold point be adjusted. To do this the stick is

moved to the position at which switching is to occur,

then press the STORE key.

The right end of the lower line displays the switch

state of a switch wired to its allocated external switch

connection.

The interaction of the external switch and automatic

channel 1 switch is displayed at the right end of the

upper line of the display.

The allocation of the channel 1 switch is cancelled by

pressing the CLEAR key.

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Graupner MC18 Manual

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