[bill south]

Bill,

DIR should be on Port 1, Pin 14. But, that has nothing to do with why your spindle is not turning on at all - it would only explain it running the wrong direction. Corrected for pin 14

If you can turn the spindle on in both directions by pulling either FWD (for CW) or FWD and REV (for CCW) to GND on the VFD itself, then the VFD is fine. VFD is fine (thankfully)!!!!!

Check that VFD parameters F0.4 and F0.5 are both set to 1. Some early machines were apparently configured differently.
These are OK.

REV should be getting controlled directly by the Mach3 DIR output, and should be HIGH (5V) for either M3 or M5, and LOW for M4. You should also be able to see this reflected in the Pin 14 LED on the BOB. FWD should be controlled by the BOB MCU, and should be HIGH for M5, and LOW for either M3 or M4. Check these levels first with the wires disconnected from the VFD, to ensure the BOB is driving them correctly. Then re-connect them and check again on the VFD.
This is the results of direct measurement with both for and rev disconnected.:

m4 forward 2 mv
rev 2mv

m5 forward 0 volts
rev 3 volts

m3 for .5 mv
rev 3 volts



What are the "ENABLE" and "CHARGE PUMP" LEDs on the BOB doing when the spindle is supposed to be on? I believe the new BOB also has a "SpindleEnable" LED, located near the 6-pin VFD connector. This is the signal that actually drives FWD to the VFD.
both on. charge pump pulsing with pin 13 on the arduino.


What is connected to the 2-pin "SpindleEnable" connector on the BOB?
two blue wires. 1 to vfd other to the 6 pin connector

Also, there is a 3-pin jumper near the 6-pin VFD connector on the BOB. What position is that jumper in?

[/U][/I][/B]jumpered to pn 1 enable (set on the right set of contacts). Sorry eyes are getting tired and lighting is not very good.


Regards,
Ray L.

OK Ray.
3 volts on the high output sounds low.
What ya think?
Bill