Okuma Genos Lathe Alarm 1741

[esaak]

Hi there,

I'm kinda scrambling right now. On my team, I was mainly the cnc mill, cnc edm, manual lathe, surface grinding guy, and there was this other guy on the team that operated this cnc lathe. Well he retired recently and even though I asked him to teach me, he's basically going to keep his secrets to the grave. Anyways, now the company wants me to learn this cnc lathe asap because we got parts we need to produce with this machine soon. Problem is, I've never touched a cnc lathe before so there's a big learning curve ahead of me. I'm hoping someone can help me.

I'm working with: Okuma Genos L2000-e

The alarm that keeps coming up is: "1741 Alarm-A Chuck Unclamp 1." The manual says: "spindle rotation command is designated (with chuck open)"

I found a post in this forum that had the same alarm problem, which was fixed simply by putting something into the clamp. I tried that, and the alarm is still. I'm guessing I gotta change something in the parameters, but honestly no idea. All I know is that when I want to turn on the spindle with MDI using command m4 s###, or when my program reaches a line that contains m4 or 3, this alarm pops up.

If anyone can help, I will be eternally grateful.

 

[VTM]

There should be a setting or a switch that tells the machine whether you are chucking on an ID or an OD. If Its set to ID and your chucking an OD Or vice versa It wont run. Find the setting and make sure that's correct.

 

[esaak]

There should be a setting or a switch that tells the machine whether you are chucking on an ID or an OD. If Its set to ID and your chucking an OD Or vice versa It wont run. Find the setting and make sure that's correct.

Thanks for the prompt reply VTM.

I checked the chuck parameters, it was on the correct OD hold setting "OD-Grip" and it still alarmed. I even tried ID-grip just to try it and it alarmed.

 

[VTM]

Unfortunately I'm not much more help. Maybe a bad prox sensor? Whatever tells the control the chuck Is closed Is not telling It.

 

[esaak]

No worries man I still appreciate it. And you weren't that far off the answer.
I fixed it by adjusting the prox sensors for the chuck clamping. here's the answer for anyone who encounters this problem. found it on reddit:

Take a look at the two prox sensors at the back of the draw tube (there's an access panel you remove if it's still there). Sensor on the left should be lit up for OD clamping, on the right for ID clamping. Only one can be lit at a time- if both are lit it will throw an alarm. There are two allen head screws either side of each prox sensor, loosen them and you can slide them forwards and backwards- slide the ID or OD one into a position where it lights up when the chuck is clamped.

 

[VTM]

Glad you got It sorted!

 

[sinha]

No worries man I still appreciate it. And you weren't that far off the answer.
I fixed it by adjusting the prox sensors for the chuck clamping. here's the answer for anyone who encounters this problem. found it on reddit:

Take a look at the two prox sensors at the back of the draw tube (there's an access panel you remove if it's still there). Sensor on the left should be lit up for OD clamping, on the right for ID clamping. Only one can be lit at a time- if both are lit it will throw an alarm. There are two allen head screws either side of each prox sensor, loosen them and you can slide them forwards and backwards- slide the ID or OD one into a position where it lights up when the chuck is clamped.

I appreciate your reply which would be helpful for anybody facing a similar problem. Many posters do not come back to the forum, once their problem gets resolved. This is unethical.

 

[sinha]

There should be a setting or a switch that tells the machine whether you are chucking on an ID or an OD. If Its set to ID and your chucking an OD Or vice versa It wont run. Find the setting and make sure that's correct.

This can be another fix, in some cases. Thank you for the idea.