Len-Tikular wrote:
I could use some help please in hooking up my Spindle motor to my breakout board.
This is ongoing from my conversion of my TCL160 which has a Mitsubishi FR-Z024 0.37k fitted.
The original Documentation from the TCL160 shows these connections were used.
STF (Fwd) to pin 5 on my new board
STR (Rev) to pin 7 on my new board
5
2
P24 (Looks like pin SD which is common) Output shutoff, how is this handle by Mach3
MRS/RT This is marked as 'Boost' on the original TCL Manual (What is the purpose of the Boost)
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I am doing some guessing here.
I have not learned how to control the forward from Mach3, because it would require a motor on/off inserted in the right places in the G-code. I am sure it is possible. That is why I added the extra circuit, filtering the PWM signal, so it is in forward mode only when the PWM pulses are present.
The FRZ-024 manual shows that there are two ways to control the speed. One is with three wires (RL, RM, RH), providing slow, medium and high speed. The other is a potentiometer (pins 10, 2, 5) that gives a speed proportional to the voltage on the slider. This would be best, so I suggest my Krypton circuit as above (reply 23) to give both speed and forward signals. There is an internal +5V supply (pin 10) to power the filter circuit, and the same constraints are needed - a low value filter resistor to provide the full range from the internal +5V with the filter driven hard from a low resistance driver chip. Use pin 5 as the common ground for this circuit, not the digital ground P24. See Appendix B in the manual.
I cannot envisage a need for reverse motor direction, so you will not require that input at all.
I think that the second acceleration/deceleration (MRS) would be for emergency stop conditions, a safe fast stop, not a dead stop, which may put more stress on the motor than is justified or safe. Remember that these controllers are not only used for NC milling, etc. (I worked on locomotives, and if they are stopped too quickly they can derail, or put flats on the wheels - there is an optimum deceleration.)
Krypton