Manual Graupner MC 32 HOTT (page 256 of 345) (English)

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256 Program description - Telemetry

In the individual case, however,

interactions cannot be ruled out, which is

why we urgently recommend

performing an appropriate test BEFORE

commissioning a model.

This receiver combination is recommended if, for

example, one of the two receivers is installed in

the model at an unfavorable position for receiving

or as a result of nozzles, carbon ﬁber material

or the like, there is the danger that the receipt

signal is weakened due to the ﬂight position, so

that interruptions of the range must be taken into

account.

Therefore, make sure to connect the most

important control functions to the main receiver

programmed as SUMI, so that, in the event of a

failure, the model remains controllable when the

SUMO satellite receiver no longer receives a signal.

Telemetry data, such as the voltage of the on-

board electricity supply, on the other hand, is only

sent to the transmitter by the satellite receiver

conﬁgured as SUMO. For this reason telemetry

sensors must be connected to the satellite

receiver (SUMO), and this receiver must also be

deﬁned as such in the “TEL.RCV.” line of the

»Telemetry« menu (Bind 1 … 2); see “Important

notes” on page 236. Each receiver should be

connected with its own supply line from the

common voltage supply. With receivers with a high

current load, it may even be beneﬁcial to connect

them with two supply lines to the same current

supply. .

On the other hand, if

each of the two receivers

should be supplied from

its own voltage source,

the centre cable must be

removed from one of the

two plugs of the satellite

red

cable; see ﬁgure.

If you would like to carry out additional

programming, such as fail-safe settings,

disconnect the three-pole satellite connection

between the two receivers and switch on only

the relevant receiver. It may be necessary to also

change the connection sequence.

• SUMD (digital sum signal)

A HoTT receiver conﬁgured as SUMD, as

described above, constantly generates a digital

sum signal from the control signals of a (user-

deﬁned) number of its control channels, and

makes this available at the following receiver

outputs (receivers supplied in the sets as

standard) GR-16 and GR-24 at servo socket 8

At the time these instructions were revised this

type of signal is exploited by a few of the latest

electronic developments in the ﬁelds of ﬂybarless

systems, high-capacity power supply systems, etc.

However, if you wish to use this facility

it is essential to read and observe the

set-up notes supplied with the device

connected to the receiver, otherwise there is a

risk that your model will be uncontrollable.

TELEMETRY

SETTING & DATAVIEW

SENSOR SELECT

RF STATUS VIEW

VOICE TRIGGER

TELEMETRI RCV BIND. 1

RX SERVO TEST V3.98

ALL–MIN : 1000µsec

ALL–MAX : 2000µsec

ALARM VOLT : 3.8V

ALARM TEMP–:–10°C

ALARM TEMP+: 55°C

TEST : START

CH OUT TYPE:SUMDHD12

When you conﬁrm “SUMD” by brieﬂy pressing

the central SET button of the right-hand four-

way button, the active value ﬁeld moves to the

right, where you can select one of three possible

receiver responses in the case of reception failure

(Fail-Safe):

TELEMETRY

SETTING & DATAVIEW

SENSOR SELECT

RF STATUS VIEW

VOICE TRIGGER

TELEMETRI RCV BIND. 1

RX SERVO TEST V3.98

ALL–MIN : 1000µsec

ALL–MAX : 2000µsec

ALARM VOLT : 3.8V

ALARM TEMP–:–10°C

ALARM TEMP+: 55°C

TEST : START

CH OUT TYPE:SUMDHD12

• HD (“hold“)

The signals last detected as correct are “held”

at the output.

• FS (Fail Safe)

The signals stored previously as the Fail-Safe

positions are passed to the output; see the

section entitled “Fail Safe” on page 216.

• OF (OFF)

No signals are passed to the servos during the

period of interference.

When you again press the central SET button of

the right-hand touch pad, the active ﬁeld ﬁnally

moves to Channel Select: at this point you can

determine the highest transmitter channel which is

to be included in the SUMD signal:

TELEMETRY

SETTING & DATAVIEW

SENSOR SELECT

RF STATUS VIEW

VOICE TRIGGER

TELEMETRI RCV BIND. 1

RX SERVO TEST V3.98

ALL–MIN : 1000µsec

ALL–MAX : 2000µsec

ALARM VOLT : 3.8V

ALARM TEMP–:–10°C

ALARM TEMP+: 55°C

TEST : START

CH OUT TYPE:SUMDHD12

Note:

In most cases a value higher than “12” is

not required by devices likely to be

connected to the system.

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Graupner MC 32 HOTT Manual

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