Please clarify a few things re motor currents for the three wire and two wire motors.
What is the PTC trip current and approximate time to trip for the spec overload? What is the PTC hold current?
What is the free speed current? https://vexforum.com/showpost.php?p=19199&postcount=2 does not agree with the inventor document for the three wire of (stall, free)= (1.6,.14). Isn’t the 5ma the motor draw with zero command?
3)Why is the published stall current (1.8 amps) for the two wire much lower than user tests? Ref:[https://vexforum.com/showpost.php?p=127090&postcount=14
Can you explain how spec stall stall current is determined by your supplier?
E.g. is it an extrapolated number based upon motor parameters and stall torque or actual measured current under stall for some time period?
In regards to #2:
My post was incorrect. The correct free currents are listed on the product pages.
In regards to #3:
The instruction sheet was incorrect. The correct stall value (3.6 amps) is listed on the product page. We are updating the instruction sheet, ASAP.
In regards to #1, the 269 motor has a 0.75 amp PTC with a 1.3 amp trip current and 0.08 amp hold current. The assembly hold current is about 0.4 amps due to the PTC and additional circuitry.
The 393 has a 0.9 amp PTC with a 1.8 amp trip current and 0.2 amp hold current.
PTCs are highly temperature and time dependant, but the 269 will trip in about 45 seconds at 1.3 amps at 25 C and the 393 will trip in about 30 seconds at 1.8 amps at 25 C.
In regards to #4, the Motor Controller 29 does not have internal current limiting.