Bedienungsanleitung Multiplex RX-7-DR M-LINK (Seite 12 von 32) (Deutsch, Englisch, Französisch, Italienisch, Spanisch)

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Operating Instructions for RX-7-DR M-LINK /

RX-9-DR M-LINK 2.4 GHz receivers

MULTIPLEX Modellsport GmbH & Co.KG • Westliche Gewerbestraße 1 • D-75015 Bretten (Gölshausen) • www.multiplex-rc.de Page 4/6

Instructions for RX-7/9-DR M-LINK 2.4 GHz receivers # 985 5319 (10-02-24/MIWA) • Errors and omissions excepted! •

MULTIPLEX

Hold the SET button pressed in for at least ten seconds (as a

guide, the LED goes out when you press the button, comes on

again after two seconds, then off again after ten seconds).

When the RESET has been carried out, the LED displays the

confirmation signal (LED code 5 Î 8.1), and the receiver

switches to binding mode.

! Note: it is not possible to carry out a RESET if the receiver is

in binding mode (LED flashing at high frequency).

8.7 Overview of the factory default settings and

variable set-up values

Parameter Default setting Set-up value

variable using

MULTImate* and

RX DataManager*

Low voltage

(error counter)

4.5 V Yes

HOLD period 0.75 seconds Yes

FAIL-SAFE period 16 seconds Yes

FAIL-SAFE Off Can be activated

channel by channel

Receiver name Internal ID Max. 12 characters

Address for receiver

battery voltage

0Yes

Address for

connection quality

1 Yes

*Refer to Chapter (Î 11.) here.

8.8 Error counter

The receiver features two error counters: for low voltage and

signal errors.

The receiver LED indicates the sum of the seconds during which

errors were detected.

If errors are indicated, they can be saved (stored) after the

landing using the SET button (Î 8.2), and read out again later

(Î 11.).

1. Operating voltage errors

Examples: flat or faulty battery, inadequate cable cross-

section, etc.

The error count contains all voltage collapses below the

threshold of 4.5 V (value can be changed using the MULTI-

mate or RX DataManager Î 11.).

2. Signal errors

The count contains instances of interference to the M-LINK

signal packet. For example, this could indicate problems in

the power supply, a defective aerial, etc.

Signal errors are recorded in virtually every flight. In most

cases the pilot does not notice them, but they are still picked

up by the extremely sensitive error counter.

After a few flights, and regular analysis of the error counter, you

will gain the experience required to render the error counter

genuinely helpful, enabling you to detect changes in good time,

and to locate indications of possible causes of interference.

!Protracted voltage collapses below 3.5 V cause the receiver

to re-boot. If this occurs, the values for both error counters are

lost permanently.

!If you press the SET button for the purpose of saving the

error count, the stored information is retained until the next time

you save the error count.

9. TELEMETRY /FEEDBACK CAPABILITY

The telemetry-capable RX-7-DR M-LINK and RX-9-DR M-LINK

2.4 GHz receivers offer a means of transmitting data from the

model back to the transmitter.

When these receivers are employed, the telemetric values for

“receiver battery voltage” and “connection quality” are transmitted

directly, i.e. they require no additional external sensors.

The receivers can also be used in conjunction with up to sixteen

external M-LINK sensors, which are connected to the SENSOR

socket. In this way a very wide variety of telemetry data can be

“sent back” to the pilot.

! Note:

The possible methods of indicating telemetry data by visual

and / or audible means vary according to the M-LINK trans-

mitter or RF module in use.

Examples of external M-LINK sensors are as follows:

x Voltage sensor (# 8 5400).

x Temperature sensor (# 8 5402).

x Current sensor:

Max. 100 A (# 8 5401) or max. 35 / 60 A (# 8 5403).

x Rev count sensor:

Optical (# 8 5414) or magnetic (# 8 5415).

x Vario / altitude sensor (# 8 5416).

For more information on connecting and operating the various

sensor types and their features (measurement range, addres-

sing, warning threshold settings, display facilities for minimum,

average or maximum values, in some cases activation of a

second measurement channel, ...) please refer to the instructions

supplied with the sensors and / or the MULTImate.

10. TWO-RECEIVER MODE

MULTIPLEX RX-7/9-DR M-LINK receivers are what are known

as “dual receivers”, (“DR”): each receiver case contains two

complete receiving circuits operating in parallel (“receiver diver-

sity”). It is also possible to connect two receivers together using

the Diversity lead (# 8 5070). In this configuration a total of four

receiving circuits is operating in parallel:

All four receiving circuits installed in the two receiver cases pick

up and assess the signals (“quadruple diversity”). In this section

we refer to this type of diversity as “two-receiver mode”.

Two-receiver mode is possible with various MULTIPLEX M-LINK

receivers starting with the RX-7-DR M-LINK. You can also connect

different M-LINK receiver types together, provided that both are

capable of two-receiver operation (e.g. 1 x RX-16-DR pro M-LINK

and 1 x RX-7-DR M-LINK).

The different orientation of all four receiver aerials provides a

further improvement in the reception performance, since this

arrangement minimises the directional aerial effect. This means

that one receiver aerial always has a good “view” of the trans-

mitter regardless of the model’s attitude. Two-receiver mode

therefore provides an additional safety margin. Two-receiver

mode is particularly recommended for use in large-scale model

aircraft.

Multiplex RX-7-DR M-LINK Seite 12

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