
10 SPEKTRUM DX5e • RADIO USER’S GUIDE
ENDEFRIT
AR500 FAILSAFE
• Preventsunintentionalelectricmotorresponseon
start-up.
• Eliminatesthepossibilityofover-drivingservoson
start-up.
• Establisheslow-throttlefailsafeiftheRFsignalislost.
• TheAR500removesservooutputpulsestoallchannels
except the throttle channel during failsafe.
• TheAR500throttlefailsafepositionisstoredviathe
throttle stick position on the transmitter.
HOW AR500 FAILSAFE WORKS
RECEIVER POWER ONLY
• Inelectricaircraft,whenthereceiveronlyisturnedon
(no transmitter signal is present), the throttle channel
has no output, to avoid operating or arming the
electronic speed control.
• Inglow-poweredmodels,thethrottleservoreceivesno
input so it remains in its current position.
Note: Some analog servos will coast slightly even
though there is no signal present. This is normal.
• Allotherchannelswillmovetothepositionsset
during binding.
AFTER CONNECTION
• Whenthetransmitteristurnedon,andafterthereceiver
connects to the transmitter, normal control of all
channels occurs.
• Afterthesystemmakesaconnection,iflossofsignal
occurs, the AR500 failsafe drives the throttle servo only
to its preset failsafe position (low throttle) that was set
during binding.
• Allotherchannelsreceivenooutputpulses/commands,
and are not active during failsafe.
SERVO REVERSING
The DX5e features servo reversing on channels 1–4. The
switches are located at the lower front of the transmitter
and are used to select the direction of each channel. Use
a small screwdriver to change the switch position to
normal or reverse.
HI/LO RATE
The DX5e offers a high/low rate function on aileron,
elevator and rudder. When the HI/LO rate switch is in the
upper position or “HI” position, 100% travel is achieved
on the aileron, elevator and rudder channels. When the
switchisinthelowerpositionareducedtravelof70%is
achieved on the aileron, elevator and rudder channels. This
is useful allowing the aircraft to have a high control rate
(switch in the “HI” position) for aggressive maneuvers and
a low control rate (switch in “LO” position) for smooth,
precise maneuvers.
• High100%rateonaileron,elevatorandrudder
• Low70%rateonaileron,elevatorandrudder
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