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Help Fanuc 0imb with Alpha i Drive. Machine not starting. Blank Screen. Status "8."

Recent forum posts - Mon, 05/30/2016 - 14:02
Quote: Originally Posted by bhaskarjalan Hello friends.
I am having a tough time dealing with a series of malfunctions on my only CNC VMC. First I had peculiar Y+ Y- Overtravel alarm on the same screen ! Is this normal. I am a newbie. Tried restarting the machine but once shut, it wont start. The screen is blank, the controls, Toggle no other buttons are working. Checked the Main Board at the rear and it is showing status "8." Tried several times to shut down and start. But no change. It is just dead apart from a red light on the controller and the "8." on the Main Board (Fanuc part no. A02B0299B802). Struggling with it for months now. Any help would be so kind. Regards. BJ.:confused: New Development [Partly Solved] problem.
OK so I managed to get the machine power up. Removed the cover of the main drive and took out all the PCB's. Cleaned and re-fitted them. Then tried Powering up and it did power up. But that's not all.
Problem now is that I am stuck with a Z overtravel alarm which even "Can +P" won't clear. Struggling to find a solution. Alarm numbers are 506 and 507. Z+ and Z- on the same screen!!?? Tried swapping encoders, encoder cables but no change.
How do I go about this. One more thing, the machine is not switching to MDI mode when the ot alarm is present. Even the axis selector switch does not function. Can anybody relate to this peculiar condition? Any help would be godsent. Pls share your opinions. Thanks. BJ.

Any professional machine repair techs here?

Recent forum posts - Wed, 05/25/2016 - 10:41
I'm new here, looking for a forum to talk over the business of repair of machines (metalworking ones included) with.

Who here is a pro repair tech (who is not primarily a machinist...)


FSSB 926 alarm on Fanuc oi-tc

Recent forum posts - Wed, 05/25/2016 - 01:55
im getting FSSB 926 alarm countinuious while i start the machine, any solution for this alarm? kindly help.

TorqCut 22 - Axis Drive Fault - HELP

Recent forum posts - Sat, 05/21/2016 - 11:07
At this point, I've exhausted everything I know to do, and looking for some help and guidance. I have a Torq Cut 22, which has been running fine with no issues. I shut it down for the day and came in the next morning, turned it on, tried to enable the drives and they come on for about 3 seconds. Then it shuts down and I get a Axis Drive Fault error. Axis Drive Fault error is so generic that it hard to track down the failure.

Here are the things I've done and checked. All the voltage coming in is good and within range. When I try to enable drives, the contactors are pulling in for the spindle drive. Wires 95 & 96 at these relay have correct power. Ive check all visible fuses on all boards and none are blown. I've checked all drives by hand and all move freely. They are also getting power when I try to enable the drives and I can feel the belts getting tight when I try to enable. I've check brushes in all 3 motors, they are slightly worn but still making contact and giving feedback. I would think if the brushes were bad, it would have failed over time instead of over night. I've checked the encoders by turning each motor by hand and I can see movement at the monitor I can also turn the spindle by hand and see RPMs on the monitor. Also the spindle brake seems to be working correctly

I have all green lights on each of the boards, and NO red lights at any time. I understand the Z board is heavier to hold the weight of the head. All the drive boards appear to be the same except for the Z. I've tried swapping the boards to try to rule out a bad drive board. When I swapped one of the boards to the Z, and tried to enable the drives, I did get slight movement on the Z. Sometimes up and sometimes down, and when that movement would get to .050 +/- it would fault with a "Following Error Limit Exceeded". I assume its the head dropping because the board isn't big enough to hold it

On the maintenance page, I've watched parameter 153 and they are all zeros. But when I try to enable the drives, the last digit switches to a 1 for just a split second and back to zero. Not sure if this is normal?

I did notice that the CMOS battery on the motherboard is starting to get a small amount on corrosion on the end, which I'll be replacing. It doesn't seem to be affecting the machine parameters yet? Date and time are still good.

The spindle drive is a Yaskawa and when I try to enable the drives I get an f-600, which I think is related to voltage and then the Axis Drive Fault error happens. Again, I checked all voltage and seems to be within spec

At this point I'm just lost and don't know where to check next in order to pin point the problem and get the machine fixed.

ANY help would be greatly appreciated.

Turret Diplomatic -CTX210- Fanuc32

Recent forum posts - Sat, 05/21/2016 - 00:25
Hello,I have a problem with ref. point on motor turret Diplomatic on CTX210- Fanuc32 .I disconnect the motor for 2 days and after connection have a problem When start the turret , motor start motion but stops immediately. I think that encoder lose information for ref, point. Can help me with procedure to set ref.point? In normal condition after command turret to start,he go to the ref.switch and rotate to first tool.Position on ref.switch is mount on turret shaft ,and encoder is coupling with drive motor.

Ballscrew Repair Needed

Recent forum posts - Wed, 05/18/2016 - 04:07
These guys are really good www.americanballscrewrepair.com

Mazak nexus 410a-II tool change problem

Recent forum posts - Tue, 05/17/2016 - 15:12
Hi all,
After "10 defector malfunction" alarm, I checked the servo battery and the other batteries, they are all still good. I shut the machine down, turned it back on, then I've got "12 absolute position warning" alarm. Tried to home it, and changed tool, the machine dropped tool, and I've noticed that the spindle moved down on z-.1752" then atc arm got stuck on the spindle. Could you please tell me what I should do now? And I have some hot jobs due on Thursday. Please help!
Thank you in advance for helping.

Can Fanuc Series 0-M read G-03 in I, J, K format?

Recent forum posts - Mon, 05/16/2016 - 10:20
Hi Everyone,

My machine only can read G03 with R format.

As title, can Fanuc Series 0-M read G-03 in I, J, K format? How come?


Fanuc 160i series controller

Recent forum posts - Sun, 05/15/2016 - 22:19
First of all Hello to all members of the forum.

Moving on to my question, I have a machine that recovers from a factory that had pulled and thinking of dismantling to recover parts, I hold the idea of trying to set it up and looking well is almost complete has 3 axis X, Y, Z and another small servo turn the spindle, but it has all mounted servos with drivers and all, in a first test feed only the controller that is a Fanuc 160i MA series and as it does not boot I get only a small square that can move with the mouse having the controller, but the only thing it does.
My question is whether with Mach3 can handle drivers who have this machine that are also Fanuc Model A06B-6096-H208 but unlike other drivers they communicate with the controller via two optical cables and then the question is if anyone knows a breakout board to work with these drivers and mach3
Thank you for your attention.

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