Bedienungsanleitung Robbe Futaba FX-32 (Seite 10 von 96) (Englisch)

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Forthisreason itisimportanttoensurethatalllinkages are

free-moving,andthattheservosarenotmechanicallyimpeded

atanypointintheirtravel..

When the receiver battery is discharged, the transit speed of

theservosdiminishesmarkedly.Ifyoushouldnoticethis,cease

operationsimmediately,andrechargethereceiverbattery.

Note:

A receiver battery low voltage alarm can be set up using the

telemetry function. This warning threshold allows the user to

readoffthebatteryvoltagedirectlyonthetransmitterscreen.

Recommendedsettingsforthewarningthreshold:

NC=1V/cell

NiMH=1.1V/cell

LiPo=3.3V/cell

Incoldconditionsthethresholdsshouldbesetslightlyhigher:

by0.1VpercellforNC/NiMHbatteries,and0.2Vpercellfor

LiPobatteries.

Charging the transmitter battery

The following methods are possible:

•Usingthecigarlighteradapterwitha12 V car battery / 12 V

DCmainsPSU,

•  O rusingthemainsadapter(110...230VAC)connectedtoa

mains socket.

•Inserttheplugintothe12VLithiumcharger.

•TheredmonitorLEDlightsup.

•Locatethechargeleadattachedtothe12Vchargerandcon-

nect it to the transmitter.

•ThechargemonitorLEDlightsupredtoindicatethatcharging

isinprogress.ThechargecurrentisaroundtwoAmpere.

• When the charge process is virtually complete (90%), the

colourofthechargemonitorLEDchangestogreen.Thebattery

cannowbedisconnectedfromthecharger.IftheFX-32battery

(Art.No.4846)isinitiallyinthedischargedstate,thisprocess

takes about 2 hours and 30 minutes.

•Afteraboutvehourstheremainingcharge(100%)iscom-

plete.ThechargemonitorLEDcontinuestoglowgreen.

Caution:

The FX-32 battery (Art. No. 4846) features an integral equa-

lizer / protective circuit with several features, one of which

is to prevent overcharging of the cells. However, to save

energy the battery should be disconnected from the char-

ger after a maximum of eight hours.

The battery must always be charged using the charger

included in the set! Chargers such as the Power Peak Inﬁ-

nity or similar units are not suitable, as these devices are

designed for batteries with high cell-counts. They generate

a very high voltage at the cut-off point, and this could ruin

the battery protection circuit.

        

(around 0.2% per day), and they can therefore be stored for

long periods without difﬁculty.

After approximately ﬁve months, or when their voltage

falls to 2.5 V / cell, they must be recharged. It is essential

to avoid deep-discharging, as this causes permanent cell

damage which results in permanent capacity loss (the elec-

tronic protection circuit cannot prevent this). LiPo batteries

should be charged up to at least 50% of full capacity before

any protracted period of storage.

OPERATING TIMES:

Thetransmitter's operating timeis around nineto ten hours

whenttedwiththefullychargedtransmitterbatterysuppliedin

theset(3400mAh).

Theoperatingtimeforthereceiverbatteryvariesgreatlyaccor-

ding to the number of servos connected to the receiver, the free-

domofmovementofthelinkages,andthefrequencyofcontrol

movements. When the servo motor is running, a servo draws a

currentof150to600mA;whenthemotorisidlingthecurrentis

around5-8mA.

Oncetheservoreachesthepositioncorrespondingtothetrans-

mitterstickposition,themotorswitchesoffandtheservothen

drawsonlytheidlecurrent.Itmakesnodifferencewhetherthe

servoisatcentre,oneend-point,oranyintermediateposition.

General

4.13 RC CHARGER, CHARGING THE TRANSMITTER BAT-

TERY

TheRCchargerincludedinthesetissuitableforcharging7.4V

Lithiumbatteries,andfeaturesanautomaticvoltage-regulated

cut-offcircuit(8.4V).Thechargecurrentisapproximately2A.

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