An issue has crept in to my v2.6 unit. I have just finished assembling & installing the new Battery tube bracket system and I have put the entire unit back together. I plug in (turn on the ROV to the computer USB) Stbd thruster starts to run immediately without any control input and before the controller board even finishes booting up. So I go back to the basic ESC programming and calibration procedures as listed in the assembly instructions (and listed below: I start with the Port ESC. I go to the cockpit view and enter “diagnostics” window. I then Start the procedures with steps 1 thru 4 on the port thruster slider on the cockpit calibration window = nothing happens. So I switch to the STBD slider and go through steps 1 thru 4 and the Port motor runs. Next I go to step 5 (on the STBD) thruster slider and = the STBD motor runs. One ESC in two different positions makes two different motors run…?
So…, next I go to the STBD ESC as soon as I turn the switch on (and the slider on the diagnostics windo is set at 0) the Port motor starts to run and the Stbd motor starts to twitch. (again two motors affected by one ESC) When I try to do step 5 the port engine switched direction. When I set the slider to zero the port engine continues to run.
A little history…: the unit functioned properly (with regard to thruster control) in previous bathtub and bench tests. This is a totally new problem. The only thing I did was to disconnect and reconnect the battery tubes. I have run tests with multimeter to ensure that I reconnected the battery tube leads properly and the polarity is correct. The telemetry, light control, camera, laser control, camera tilt servo are all functioning properly.
I have also reloaded the 2.5.1 image onto the BBB. This did not help.
Anybody have any ideas…? PLEASE…
“1) Now that the speed controllers have been programmed we are going to calibrate them. As a reminder the order of the ESCs for the PWM wires are D6-Port, D7-Vertical, D8-Starboard.
2) With all of the ESCs switched off, go ahead and power up. Nothing should happen on the motors. Connect with the cockpit software and open the diagnostic pane.
3) Hold the reset button on the ESC while powering on the first ESC using the switch on the ESC… it should start beeping… let go of the reset button. (It will keep beeping which is fine).
Press reset once and you should hear a single beep.
4) Move that motor’s slider all the way to the right (or click the “1”) and then press the reset on the ESC again. You should get 2 beeps.
5) Move that motor’s slider all the way to the left (or click the “-1”) and then press the reset on the ESC again. After a few seconds the motor will begin to spin.
6) Switch off the ESC and move the slider back to the middle (or click the “0”). Move the next ESC and repeat…”