Been using Blue Robotics parts for a couple years now and first time on the forum!
2 questions in trying to diagnose a potential ESC issue
I’m using 2x t200s and blue robotics escs with Pixhawk4 Cube/orange and herelink controller
When an ESC is first connected to power, without the 3 pin servo connected, should it make any noise? I see mentions of ESCs beeping
Should the ESC output be able to be read with a multimeter?
Reading with multimeter, Power in coming from the battery the ESC is hot, but the 3 (blue/green/white connections) going out are cold, regardless of 3pin servo connection to Pixhawk.
Hi @garnerlanier -
Welcome to the forums!
When a BasicESC is powered up with a motor connected, you will hear three beeps raising in tone. When the ESC receives an initialization signal of 1500us servo-style PWM, you will hear a fourth, arming beep. From this point forward, servo signal above or below 1500us will trigger motor operation. The three wires going to the motor are actually a 3 phase AC power signal, which may be tricky to read with your multimeter - this power would also only be present if the motor was turning.
It would seem that your motor is not connected, if you don’t hear any beeps!
Just to add to this, the ESC does not contain any kind of speaker - it vibrates the connected motor at an audible frequency, so if there is no motor connected then there can be no beeps.