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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
1
should be supplied from
its own voltage source,
the centre cable must be
removed from one of the
two plugs of the satellite
256 Program description - Telemetry
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
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
RX SERVO TEST V3.98
ALL–MAX
TELEMETRI RCV
ALL–MIN
SETTING & DATAVIEW
TEST
ALARM VOLT : 3.8V
SENSOR SELECT
ALARM TEMP+: 55°C
RF STATUS VIEW
ALARM TEMP–:–10°C
CH OUT TYPE:SUMDHD12
VOICE TRIGGER
When you confirm "SUMD" by briefly pressing
red
the central
SET
way button, the active value field moves to the
right, where you can select one of three possible
3
2
receiver responses in the case of reception failure
(Fail-Safe):
(digital sum signal)
: 2000µsec
BIND. 1
: 1000µsec
: START
button of the right-hand four-
TELEMETRY
RX SERVO TEST V3.98
ALL–MAX
: 2000µsec
TELEMETRI RCV
BIND. 1
ALL–MIN
: 1000µsec
SETTING & DATAVIEW
TEST
: START
ALARM VOLT : 3.8V
SENSOR SELECT
ALARM TEMP+: 55°C
RF STATUS VIEW
ALARM TEMP–:–10°C
CH OUT TYPE:SUMDHD12
VOICE TRIGGER
•
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
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
RX SERVO TEST V3.98
TELEMETRI RCV
ALL–MAX
: 2000µsec
BIND. 1
ALL–MIN
: 1000µsec
SETTING & DATAVIEW
TEST
: START
ALARM VOLT : 3.8V
SENSOR SELECT
ALARM TEMP+: 55°C
RF STATUS VIEW
ALARM TEMP–:–10°C
CH OUT
TYPE:SUMDHD12
VOICE TRIGGER
Note:
In most cases a value higher than "12" is
not required by devices likely to be
connected to the system.
button of
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