Problem with ESC's beeping

Mugesh

Member
Hi guys,
I am building a hexacopter with following build:
1. DJI F550 Frame
2. 15 A opto E300 ESC
3. 920 kv DJI motor
4. Pixhawk FC

I flashed Hexa-x firmware into my pixhawk via APM panner. And connected all ESC's to AUX output (tried with main outputs too) of Pixhawk according to the motor number shown in the following link:
http://copter.ardupilot.com/wiki/common-pixhawk-wiring-and-quick-start/

I am powering the pixhawk and PDB with 3DR power module. I did not attach any receiver/ transmitter yet.
When I try to check if everything is working fine by connecting the battery, pixhawk starts up and main LED is blinking yellow showing its in standby but the Esc's start up tone comes and it starts beeping B..B..B

So I removed all motors from ESC and tried with one by one connecting the motors. I found out that beep sound comes from ESC's 5 and 6. Its not beeping until first four motors are connected.

I tried to do whatever I can. but the result is same. PLease help me out guys.
 

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