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Hi Tom,

No error messages that I have seen, maybe I should have the kmotion console up to see. In Mach 3 it just goes to the start point sits there for a sec then moves on to the next point...

Hi All,

I have a strange issue with the G03 command, sometimes it will not cut the circle, it moves to the location but does not do the cut.

I was playing with some test code and found the...

HI All,

I have an odd issue when cutting circles (waterjet) using G03. Sometimes it just does the pierce but does not cut the circle.

Playing with some test code I get the following odd...

:( so after a month of only intermittent issues the error came back with a vengeance :(

Seemed to go back to only occasional issues with a flash, should we be looking at a power supply issue or...

I will check the registry and the compile/download/execute

I did the version in the console and received 3.34.

Cheers

Chris

Hi Tom and anyone else who has seen this error,

I have been running a waterjet with Mach 3, Kmotion and Kanalogue for over a year but on Sunday it started cutting then faulted and threw a...

Sounds like a good solution, I ended up programming the motion controller (Kflop) to fire the solenoid rather than use the mechanical timer.

I could never find manuals for these drives unfortunately.

They are Allen-Bradley Bulletin 1389 Servo Amplifiers
X-Axis - 1389-AA17
Y-Axis - 1389-AA09
Z-Axis - 1389-AA09

The power supply is...

Ok, after playing with it some more and manually releasing the brake to see how fast the z axis moves down under gravity I am leaning more and more towards the control loop/drive power is not fast...

Init program is posted above (init_new.txt) only change is I have been adjusting the max following error.

I will take pics of the Axis screen tomorrow.

Cheers

Chris

I will check, but if it was falling under gravity wouldn't it try to correct upwards instead of driving it downwards? I do see the feedrate in Mach go to 120 briefly which is the max speed so it...

Prior to initialization the Axis screen shows 0 for Dest and close to zero for Position (most i saw was 12). All axis disabled.

I will get and post the init and xml file Sunday.

Cheers

Chris

The Servo loop enable and brake release occur at the same time.

Cheers

Chris

Ok very odd, the problem when away when I removed the pendant from the system. Lately I have been working on a way to keep the drives disabled until Mach 3 was up (see...

On this system the power supply has the enable the individual drives do not (Allen Bradly 1389 chassis system). Also the power supply has a shunt resistor which I believe discharges the output on e...

This is what i will do I guess, already using the zaxis enable to run a brake on that axis just wondered if there was a more system level output I could use instead of one mapped to a specific axis....

Problem is although both Mach and Kanalog are both up (watchdog is active) Mach is in reset on startup which leaves the drives disabled in Kanalog. This means that the axis have power as Kanalog is...

This is almost exactly what I have using a 3 phase contactor between the isolation transformer and the Drives power supply. Aux contacts on this contactor feed a control signal back to Mach to...

HI All,

Quick question about best way to wire up e-stop. Currently I have an estop chain consisting of Estop Buttons, Thermal switches on motors, Kanalog Watchdog. When these are all met it...

Hi Tom,

I have attached my original Init and my new Init script. Can you have a quick look at them and tell me if I missed anything. I changed the EnableAxis to EnableAxisDest and reduced the...

Hi Tom thanks for the reply!

I will look at the Max following error and also check on the initialization. I do disable the axis on Estop so shouldn't that reset the commanded position when re...

Hi Guys,

Its so fast that I don't know what the DRO or Kmotion shows. I can try to catch it next time.

Something else I noticed was I had a plugin for the old pendant enabled so maybe there is...

Hi Tom,

We have an issue which I am not sure if it is Pendant, Mach 3 or Kmotion related but maybe you can give us your thoughts?

Using the P2-SE Pendant (usb) connected to Mach 3 and then to...

Hi Tom,

The waterjet and Mill and working great on Kflop Kanalog both with servo and encoders (might work with you some more on the Mill once I make sure it is mechanically sound). The next...

Thanks Tom!

The Y Axis is actually a ball screw so it should be a little better than the X axis.

Yes you are correct a waterjet has no cutting forces on the motion system so I will play with...

Progress from today,

No more oscillation at low speeds, I also reduced the scaling and gain on the amplifiers so the Kanalog output was higher for a given speed.

X Axis 120ipm
326946

X Axis...

So your not concerned by the low output value?

Cheers

Chris

Reason would be to stop the system when it goes into bad oscillation. Atm hitting Estop on Mach does not stop the oscillation.

Cheers

Chris

I will be testing tomorrow when I am at the machine.

Cheers

Chris

Ok I will work on this tomorrow,

Another question, hitting reset in Mach 3 does not disable the axis, is there a way to catch this and disable the axis in Kflop?

I do have the disabling if I...