How to reset XYZ zero (Excitech & DSP)

[bananafish]

I have Excitech SHG1212 with DSP controller.

When I turned the machine on today, as usual DSP asked me for"GO TO HOME ?" then instead of hit the "OK" key I pressed the wrong button.
Then I lost "XYZ zero" point.
When I press "home" button the machine wants to go over the limit.
It's off about y=170mm x=4mm.
Could someone tell me how to reset XYZ 0 please.

[SkipW]

Don't know if this will help but I found it doing a google search...

If the machine doesn't go home.
Restart the DSP controller
or
Recover the data in DSP controller: MENU=>SYSTEM MAINTENACE=>DATA SETUP=>RECOVER DATA
or
Reinstall the DSP program ZHBUSB: copy from the CD we sent with the machine.

Hope that helps

[Butterknife]

Are you sure your limits are working Bananafish? If you work one while the machine is trying to home, does the machine stop on that axis? If not, you probably have a wiring issue.

I had a DSP that lost its programming once and wouldn't reprogram. I had to get another one. Probably not your problem though. Mine wouldn't move the machine at all.

Butterknife

[bananafish]

Thank you for your help.
My DSP still working fine.
I have to reset my XY0 because limit sensor was bent.
Problem was the black plastic dust cover on Y axis was jammed between the sensors.

[king9558]

Hi Bananafish:
You need to make the home sensors wrok first. Maybe you have done it. the controller needs to get signals from sensors to tell the machine coordinate position. if the sensors are not working, the gantry continues to move which will damage the gantry and the machine.
Alan

[king9558]

For the XYZ0 you mentioned, i think it is the working origin. if the home sensors bent, and you repair them, the machine coordinate changes, in order to get better accurancy, you have to reset the working origin(move X Y Z to the materials' surface and push "4" and "8" ). If your work does not change, such as the same material, the same g code file, the same tool, then you dont need to set XYZ0 each time.
once you set the working origin, the controller remembers it. the controller can remember 8 of them, because it has 8 working coordinates. Example: you have 3 files, they are for cutting, engraving and drilling for different materials. then you can set the origin in the 1st working coordinate and run cutting file, then you can change to the 2nd working coordinate and set the origin and run engraving file, the same for drilling.
Alan

[contheosius]

Arggh! I did the same thing. Fiddled with the setup menu
and now my excitech shg 6090 does not know where home is.
Of course I found a thread that told me (too late) that one should
NOT go into that specific menu.

I've now read all the threads.
The machine seems to ignore all the "safety switches"
The Z position is now trying to go home to China from South Afica.
And when I use the height sensor it moves upwards
instead of downwards?

Sigh!! Can anyone maybe help me fix what I
screwed up with the keypad?

I eventually found a xp machine and the software needed to connect to
the hand-held unit. (Sherry from excitech sent it) But it helps me nothing.
There is no default .dat file in the package. The documentation only describes
the controller and none of the sgh0609 default settings are discussed.

Does anyone please... pretty please not have the config for the sg0609.
Via the software it now seems to move home but does not seem to have
a clue where z-O is.

[tecnicocnc]

is normal go home

format your control before save parameters

regards