More VSD-e questions

[scrambled]

finally- We have movement.


After spending several nights on Yahoo chat with Jalessi I finally have movement. Thanks Jeff!!


The problem appears to be that the VSDEPI and the BOB from Candcnc do not play well together, and that and I had the step and direction pins reversed.

When i had the VSDEPI connected to the Candcnc BOB, I was getting lots of noise and the servos would jump and sing when I would power the system up. Once I removed the VSDEPI everthing started falling into place.


Now for a wiring question. When I had the VSDEPI connected, I had my E-stop relays connected to the N.O. contact for the VSDEPI e-stop. When I got a fault, I could press the e-stop button, the VSD-E would switch from ready to disable, and when I would release the e-stop the fault would clear.

When I tried this on the VSD-E, I tried several of the inputs according to GDtool, but I could not get it to work.


So should IN3 and IN4 (pin 9 and 10) be connected to common-ground, to IO common, or to +5 volts?



Thanks for the help



Steve

[jalessi]

Steve,

I am 99.9 sure +5 volts.

Only one of the pins controls the enable, I believe IN4.


Jeff...

[scrambled]

Jeff-

I tried that. I did not connect it through the relay, but used a jumper wire. I had the Disable in and the clear faults both set to Opto in 4.


So I am not sure what else I need.


Steve

[jalessi]

Steve,

I don't know if you can share the pin, try Disable on IN4 and Clear Faults on IN3

[jalessi]

By the way did you check to see if the pin was low by default?

[Xerxes]

Clearfaults and disable can be assigned to same input pin (that way it is configured for VSDEPI).

IN3 & IN4 work only with common gnd connection so the IO_COM pin goes to gnd.

And many thanks to Jeff for helping out Steve :-)

[scrambled]

Tero-

Sorry for the delay, but I needed to take 2 weeks off from the plasma cutter. I am now back at it


How would I set the drives up, so that when one drive faults, all the drives fault?

This is really important for the X and A axis. Now when one faults the other drive keeps pushing the gantry.


Thanks


Steve

[Xerxes]

"How would I set the drives up, so that when one drive faults, all the drives fault?"

That is the default behavior of VSDEPI with Mach3 when configured as manual suggests. Did you load VSDEPI config file settings to drives? And configured Mach pins accordingly?

[scrambled]

Tero-

I had the VSDPI connected, and it kinda worked. The problem was that when MACH was not actually driving the machine, the servos were moving on their own. I think this was due to some form of noise. The BOB from candcnc and your VSDPI both use opto isolators. I think the signal were just two week going through the 2 opto isolators.

So now I need to figure out how to hardwire the e-stop, ready,home, and all fault.

Any ideas?


Steve

[Xerxes]

So now you don't have VSDEPI in system? You can make all drives stop simultaneously by routing drive fault signals to e-stop input of mach and configuring enable/disable output from mach to drives. When mach sees e-stop active, it will change enable signal status.

[scrambled]

Tero-

Correct. I had to remove the VSDSI because of the noise on the system.

How would I connect the drives so that if one drive faulted, then they all faulted.

Steve

[Xerxes]

Steve,

The disable signal must come from outside of drive for non-faulted drives. So configure CNC software so that it will send disable signal to all drives when one of drives is faulted.

Unfortunately I can't give specific configuration steps because I'm not familiar with that breakout board.