will this H-bridge motor runaway protection circuit work?
investigation is required prior to the circuit being reset. if triped off by a malfunction!
if I have a Double BTS7960 43A H-bridge High-power Motor Driver module that will drive a 8000rpm 4 amp DC Motor with pulse width modulation
can I get your opinion
problem- I need a way to stop a 40watt dc motor from running the shuttle off the end of the leadscrew in the event of a malfunction.
a runaway shuttle can cause major damage to the machine. as the Motor direct drives the leadscrew from one end.
the protection circuit must bypass ALL H-bridge logic and be fast acting without damaging the BTS7960 H-bridge.
the resistor is to minimize any EMF surge meanwhile stopping the motor.
use of two 10 amp micro switch's as leadscrew end stops. independent of any logic end stop re-set micro switch's used by the Arduino / logic control
a malfunction can be for any reason whatsoever bad code or human coding error or overheating logic circuits esc.
the circuit. is a manual reset as the leadscrew needs to be manually moved off the end stop before re-starting the run.
.shuttle control feedback is independent of this circuit by way of a rotary encoder not shown here!
will this runaway protection circuit work without damaging the BTS7960 H-bridge.?
it is a manual reset / hand reset.
the motor gear ratio is 1 to 1 with the lead screw.
most stepper drivers are too slow for this application. so no belts are used .
actuator requirement is to slide a shuttle 35cm end to end in just 1.5 seconds. with a 3mm positional accuracy over that same 35cm .
by way of pulse width modulation. sometimes under high contact resistance if steel wire is contact clamped , steel guitar mode.
to emulate the speed of a human arm / hand. over 35cm. guitar neck