Spektrum SPMAR6310 - Manual (Page 9)

EN
9
Receiver Power System Requirements
Inadequate power systems that are unable to provide the necessary minimum
voltage to the receiver during flight have become the number one cause of in-flight
failures. Some of the power system components that affect the ability to properly
deliver adequate power include:
• The receiver battery pack (number of cells, capacity, cell type, state of charge)
• The ESC’s capability to deliver current to the receiver in electric aircraft
• The switch harness, battery leads, servo leads, regulators, etc.
The AR6310 has a minimum operational voltage of 3.5 volts. If the voltage drops
below 3.5 volts, the system will connect when power is restored and the LEDs will
flash, indicating a brownout. See QuickConnect below.
Recommended Power System Test Guidelines
If a questionable power system is being used (e.g. small or old battery, an ESC that
may not have a BEC that will support current draw, etc.), it is recommended that a
voltmeter be used to perform the following tests.
Plug the voltmeter into an open channel port in the receiver and with the system
on, load the control surfaces (apply pressure with your hand) while monitoring the
voltage at the receiver. The voltage should remain above 4.8 volts even when all
servos are heavily loaded.
QuickConnect™ With Brownout Detection (DSM2 Only)
The AR6310 features QuickConnect with Brownout Detection. Should a power
interruption occur (brownout), the system reconnects immediately when power is
restored and the LEDs on each connected receiver flash. Brownouts can be caused
by an inadequate power supply (weak battery or regulator), a loose connector, a
bad switch, an inadequate BEC when using an electronic speed controller, etc.
Brownouts occur when the receiver voltage drops below 3.5 volts, as the servos
and receiver require a minimum of 3.5 volts to operate.
How QuickConnect Works
When the receiver voltage drops below 3.5 volts, the system drops out (ceases to
operate). When power is restored, the receiver immediately attempts to reconnect.
If the transmitter was left on, the system reconnects, typically in about 4ms. The
receivers 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 in the same manner as if a brownout has occurred.
CAUTON: If a brownout occurs in-flight, it is vital you determine the cause
of the brownout and correct it. QuickConnect and Brownout Detection 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
the possibility of a crash.