Spektrum SPMAR12110 - Handbuch (Seite 20)

EN
20
QuickConnect™ with Brownout Detection
The remote receivers now included with the AR12110 feature QuickConnect with
Brownout Detection (Brownout Detection not available with DSMX). Should a
power interruption occur (brownout), the system will reconnect immediately when
power is restored and the LEDs on each connected receiver will flash indicating
a brownout (power interruption) has occurred (DSM2 only). Brownouts can be
caused by an inadequate power supply (weak battery or regulator), a loose connec-
tor, a bad switch, an inadequate BEC when using an electronic speed controller, etc.
Brownouts occur when the receiver voltage drops below 3.2 volts thus interrupting
control as the servos and receiver require a minimum of 3.2 volts to operate.
How Brownout Detection Works
When the receiver voltage drops below 3.2 volts the system drops out (ceases to
operate). When power is restored, the receivers will immediately attempt to reco-
nnect to the last two frequencies they were connected to. If the two frequencies are
present (the transmitter was left on) the system reconnects, typically in about 4ms.
The receivers will then blink indicating a brownout has occurred (DSM2 only). If
at any time the receiver is turned off then back on and the transmitter is not turned
off, the receivers will blink as a power interruption was induced by turning off the
power to the receiver (DSM2 only). In fact this simple test (turning the receiver
off then on) will allow you to determine if your system’s brownout detection is
functioning (DSM2 only).
NOTICE: If a brownout occurs in-flight it is vital that the cause of the brownout be
determined and corrected. QuickConnect and Brownout Detection are designed to
allow you to safely fly through most short duration power interruptions. However,
the root cause of these interruptions must be corrected before the next flight to
prevent catastrophic safety issues.
Tips for Getting the Most from your PowerSafe System
Flight Log
The optional Flight Log is highly recommended. The Flight Log can be used to test
the battery system using the built-in voltmeter and applying a load to the servos/
control surfaces. If a regulator is used the voltage should never drop below the
rated voltage (6.0 volts) even under a heavy load. When using direct batteries the
loaded voltage should never drop below 5.0 volts.
When the system is first installed it is highly recommend that an advanced range
check be performed. (See advanced range check on page 18.) If any receiver is
performing less than optimally (higher than normal fades) that receiver should be
repositioned and the advanced range test until low fades are recorded.
During first flights with sophisticated airplanes (significant conductive materials
onboard, many high-current draw servos, carbon construction, etc.), it’s a good
practice to keep your first flight in close then confirm the RF link performance
using the Flight Log to determine the performance of each attached receiver. Extend
the distance on subsequent flights and record the Flight Log data confirming that
all systems are performing properly.