Servo alarms 103 and 139

ARB · Aug 14, 2008

I am getting

103 X servo motor error too large
139 X motor Z Fault

1994 VF3 DC Brush machine.

I switched x and y drives and get the same error.

I also seem to lose postion when it happens and have to referernce the axis before i can continue.

This is an intermittent problem getting worse.

Is this the motor, the encoder, or cabling?

I pulled the brushes and vacuumed the dust out as best I could and replaced the brushes. They looked to be about half gone.

????

Any insight before I call the dealer.

TY ARB

michael · Aug 14, 2008

IIRC, those were a couple of the alarm #s I got on my VF-3 recently. Encoder for Z was flaky. New one was $275 + service call. Looking at old one and found manufacturer online. Didn't go through order process to see what price would be. Might be worth checking out.

ARB · Aug 14, 2008

I just looked at it some more. I popped the cover on the main connection at the motor and it was pretty full of brush dust.

Could this cause the problem. Obviously it is not the best and I will vacuum it out before reassembly.

michael · Aug 14, 2008

Maybe. Some years back I had trouble with a brush machine. Carbon buildup in motors had jarred loose and needed cleaning out.

ARB · Aug 15, 2008

New motor is airborn now. We will see later today if it works.

I cleaned out the old one as well as I could without taking it apart.

No Dice.

ARB · Aug 15, 2008

All better now! :cheers:

michael · Aug 16, 2008

Cool. Now you can take the old one apart & clean it real well. Maybe it will work for a possible emergency spare.

ARB · Aug 16, 2008

OK now my x axis is out of location by -.048.

I run this machine with a pallet changer and all my production fixtures are pined to the pallets.

Is there a parameter to change (maybe 125) to make this right?

Or do I need to change all my G10 lines in my programs?

Search

Largest Manufacturing Technology Community on the Web

Search

Servo alarms 103 and 139

ARB

Titanium

michael

Cast Iron

ARB

Titanium

michael

Cast Iron

ARB

Titanium

ARB

Titanium

michael

Cast Iron

ARB

Titanium

Similar threads