Spindle orient problem

[mattpatt]

Hi Guys,

Got a bit of an iddue. I have a Fadal 3016FX with Fanuc 0i control. I posted my problem on the Fadal section, but was advised to also post here, so here we go;

Had a noisy belt, so just changed that.

Try to run M84 to synch everything up and it errors:

1174 M84 LOGR ARBITRARY DATA ERROR

If I try to orient the spindle it errors:

9081 SPN 1 :S-SPINDLE ERROR (AL-081)

I'm gonna have a search for info now, but hoped that maybe someone has some words of widsom.

Possibly the hall effect sensor?

Just checked the hall effect sensor.

I measure 20V at the red wire/earth.

The green wire is 20V, and 0V when the magnet passes the sensor.

Since the above finding I have found a little damage on the end of the hall effect sensor. looks like something got trapped between the spindle pulley and sensor at some point. But it still reads the 20V. However, measuring another sensor shows 23.1V. I don't know if they should read the same or not.

Can someone assist?

Regards

Matt.

[msa]

9081 SPN_n_ : 1–ROT MOTOR
SENSOR
ERROR 81
-------------------------------------
1 Check and correct the parameter.
2 Replace the feedback cable.
Adjust the sensor.
-------------------------------------
The one–rotation signal of the motor
sensor cannot be correctly detected.

[mattpatt]

Thanks for the reply. I already tried adjusting the sensor but to no avail.

I'm at a bit of a loss regarding the feedback cable as I don't know what this is, and also which parameter to check and what it should be when I do check it.

Sorry for my ignorance. I'm in Thailand and struggling with back up service for my Fadal. As it is no one wants to look at it mechanically so I have to do everything there. However, I'm not clued up about the electronic.

Regards,

Matt

[msa]

Hello
I will spare you my opinion on Fadal
can you send a copy of the parameter list and the data sheet?
I will look a little deeper into the mtb manual.
is there a mechanical lock on Fadal?¨

Regards

Michael

[Alexyu]

Please check the parameter 4004 bit 3, and 4. If both of it are 0, it means you
do not turn on the external sensor function.
But if you are sure you just change the belt only, and did not play with the parameter.
You don't need to check the parameter.
Please check the connection of the magnetic sensor. The cable is loose or not?
The connector is polluted by oil or not.

Alex

[tc429]

if the sensor had to be removed to service the belt, be sure the sensor and magnet are both oriented the same way- AND THE RIGHT DIRECTION.
we had a guy swap a pulley/magnet once, found he did it upside down and then figured it was just easier to rotate the sensor to align the little marks- nope, they must be aligned AND that alignment has to be relative to motor shaft direction...
its in the drive manuals, maybe worth doublechecking if someone else had it apart to do the belt.

[mattpatt]

Thanks for your replies.

I haven't figured this out yet.

The guy at MAG IAS, LLC tell me to replace these parts: WIR-0276 and ELE-3100

I must say that if I rotate the spindle to where the pulley magnet and sensor line up then the voltage measured on the pick up wire drops to zero.

Alexyu: I did not touch the parameters. I've changed belts a few times on this and not had a problem. Just run M84 to synch up and away we go, but not this time. I just get the errors.

[Alexyu]

Ah...
Did your machine have the gear box?
Is the gear in the correct position? If it is not at the correct position, it may have alarm.
it means the control is not reading the correct parameter.

So I think you have to solve the gear position first.

I hope this will help

[mattpatt]

Still having problems.

I've replaced the cable and sensor as instructed by the tech at MAG. The sensor is set to the correct clearance.

However, I still get the 1174 alarm when I try to run M84.

If I try to orient the spindle I no longer get the 9081 alarm, but now a 9082 alarm.

I'm at the end of my tether. Can anyone come up with any bright ideas?

I'm ok when it comes to mechanics, but I'm the first to admit that my electronics skills are not perfect.

Regards,

Matt.