Spektrum SPMR55001 DX5e Manual Bedienungsanleitung PDF herunterladen (Seite 13)

13SPEKTRUM DX5e • RADIO USER’S GUIDE

EN DE FR IT

3. Q:I’veheardthattheDSMsystemislesstolerantoflow

voltage. Is this correct?

A: All DSM receivers have an operational voltage range of

3.5to9volts.Withmostsystemsthisisnotaproblem

asinfactmostservosceasetooperateataround3.8

volts. When using multiple high-current draw servos

with a single or inadequate battery/ power source, heavy

momentary loads can cause the voltage to dip below

this3.5-voltthresholdcausingtheentiresystem(servos

and receiver) to brown out. When the voltage drops

belowthelowvoltagethreshold(3.5volts),theDSM

receiver must reboot (go through the start-up process of

scanning the band and ﬁnding the transmitter) and this

can take several seconds.

4. Q: Sometimes my receiver loses its bind and won’t

connect, requiring rebinding. What happens if the bind

is lost in ﬂight?

A: The receiver will never lose its bind unless it’s instructed

to. It’s important to understand that during the binding

process the receiver not only learns the GUID (code) of

the transmitter but the transmitter learns and stores the

type of receiver that it’s bound to. If the trainer switch is

pulled on the transmitter at any time and the transmitter

is turned on, the transmitter looks for the binding

protocol signal from a receiver. If no signal is present,

the transmitter no longer has the correct information

to connect to a speciﬁc receiver and in essence the

transmitter has been “unbound” from the receiver. We’ve

had several customers using transmitter stands or trays

that unknowingly depress the bind button. The system

is then turned on, losing the necessary information

to allow the connection to take place. We’ve also had

customers that didn’t fully understand the range test

process and pulled the trainer switch before turning

on the transmitter, also causing the system to “lose its

bind.” If the system fails to connect, one of the following

has occurred:

• Thetransmitterisnearconductivematerial(transmitter

case, truck bed, etc.) and the reﬂected 2.4GHz energy is

preventing the system from connecting. (See #2 above)

• Thetrainerswitchwaspulledandtheradiowas

previously turned on knowingly (or unknowingly),

causing the transmitter to no longer recognize the

receiver.

GENERAL INFORMATION

FCC Information

This device complies with part 15 of the FCC rules.

Operation is subject to the following two conditions: (1)

This device may not cause harmful interference, and (2)

this device must accept any interference received, including

interference that may cause undesired operation.

Caution: Changes or modifications not expressly

approved by the party responsible for compliance could

void the user’s authority to operate the equipment.

This product contains a radio transmitter with wireless

technology which has been tested and found to be compliant

with the applicable regulations governing a radio transmitter

inthe2.400GHzto2.4835GHzfrequencyrange.

Servo Precautions

• Donotlubricateservogearsormotors.

• Donotoverloadretractservosduringretractedor

extended conditions. Make sure they are able to

travel their full deﬂection. Overloading or stalling a

servo can cause excessive current drain.

• Makesureallservosmovefreelythroughtheir

rotations and no linkages hang up or bind. A binding

control linkage can cause a servo to draw excessive

current. A stalled servo can drain a battery pack in a

matter of minutes.

• Correctanycontrolsurface“buzz”or“utter”assoon

as it is noticed in ﬂight, as this condition can destroy

the feedback potentiometer in the servo. It may be

extremely dangerous to ignore such “buzz” or “ﬂutter.”

• Usethesuppliedrubbergrommetsandbrassservo

eyelets when mounting your servos. Do not over-

tighten the servo mounting screws, as this negates the

dampening effect of the rubber grommets.

• Ensuretheservohornissecurelyfastenedtotheservo.

Use only the servo arm screws provided; the size is

different from other manufacturers.

• Discontinuetouseservoarmswhentheybecome

“yellowed” or discolored. Such servo arms may be

brittle and can snap at any time, possibly causing the

aircraft to crash.

• Checkallrelatedmountingscrewsandlinkages

frequently. Aircraft often vibrate, causing linkages and

screws to loosen.

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