[fordav11]

you could stop wondering and start knowing if you look at the diagnostic bits I listed above.

we have a machine at my work with a similar random problem. we just leave it on all the time. try powering off the control but leave the main power switch on.
if that fixes the problem then you might have a heat or cold-related issue. it definitely sounds like a cable or bad connection on a cable connector.
backing up parameters has been detailed here on this forum many times. do a search and some reading......

[alexfanuc]

Hi
For cable. just wonder that all 3 axis have problem same time?
Any other posibility?
and it only happen in the first time to turn on machine of the day.
then later never show up. Just every morning.

So now I am concern about the parameter and other data.
How easy to make back up?

Thanks

CB

Look for a fiber optic cable in the servoamplifier. This is a black thin cable. Is it well connected? If it is, then you probably have a bad pcb inside the nc control or the amplifier.
Regards

[CBMach]

Hello
I turn Off monitor and keep main swtch ON. approx 1 hour.
Alarm 368 stil come up.
I think if turn off machine 20-30 minute. The 368 alrm will come back
( After success each day )
I have look to Fiber optic cable. Good conect.
How to know If this cable no good.?

Thanks

CB

[underthetire]

I have had this on the newer alpha i drives. There is a small daughter board that slides in the front of the servo amps. I pulled ours out and re seated them. No longer any problems.

[CBMach]

Hello
I try to clean that daughter socket. And put it back.
No luck on this. 368 still come up.
I also feel that alarm 368 is take longer time to success turn on machine.
Before is say 5 minute.
this moment may be 30 minute.or more.
Any other idea?

Thanks

CB

[CBMach]

Hi
I have test with remove each axis endcoder cable from Amp.
Each axis a time.. Then I get alarm 368 each axis. a time too.
Seem endcoder cable is OK.
I aslo check 24 V supply ( it still alarm and 24V OK )
any idea?

Thanks

CB

[CBMach]

addition info.
When remove X axis. It alarm X axis only.
Not show other axis.
Other axis same result.

Thanks

CB

[fordav11]

I'll repeat a 3rd time.... check the diagnostic bits I listed above in post #16

[alexfanuc]

Yes, I agree with fordav. You should check diagnostics first.
:tired:

[CBMach]

Hello
For check Diagnostic.
I have look to it. But I am not understand what is what. I am New on this.
Today. I got this page. attached picture.

[CBMach]

I have look to Diagnos again. You may want to know what Status there. Right?
Here what I see in My machine.
200-202 =0000 0000
203= 1000 0000
204-205 = 0000 000
any idea?
Thank you very much

CB

[CBMach]

Hello
I have look to Diagronos again when machine is work correctly.
Here it is
200-201 =0000 0000
202= 0010 0000
203-205 = 0000 000
Thank you for help

[alexfanuc]

I have look to Diagnos again. You may want to know what Status there. Right?
Here what I see in My machine.
200-202 =0000 0000
203= 1000 0000
204-205 = 0000 000
any idea?
Thank you very much

CB

203 bt 7 is a one. This indicates the feedback cable has a problem or the encoder in the motor (red cap).
DGN 203 bit 7 in three axis? You must check where the feedback cable goes to. It comes from the motor to the amplifier? or it comes from the motor to the CNC control? if DGN 203 bit 7 is in the three axis and the feedback cable goes inside the amplifier then you have a problem with your pcb in the amplifier.
As for alarm 926, it may happen if you disconnect a cable during power on.
Regards

[MysticMonkey]

The fact you are getting FSSB number of amps is small error and a serial data error indicates there is a serious problem with one of the axis modules.

This is assuming the errors are related.

Also the Diagnostic bits should be axis specific this will indicate the servo amplifier module that is faulty.

The fssb error normally occurs :-
1. if the fiber optic cable is faulty or
2. the drive has failed to power on (you will be able to check this by seeing if the drive is lit up)
3. Servo amp pcb fault

The 368 alarm is
1. a communications with the encoder fault
2. Servo amp pcb fault

[CBMach]

Hello
I have take out these PCB
A20B-2101-0013 PCB and A20B-2902-0670 MODULE.
From A06B-6134-H303#A amp module. sent to someone that he can fix.
But not success yet..
I also looking to buy this card on internet.
I found one supply.
But they ask for program to program to this card. before ship to me.
Question is. Where I get the software for it?
Any help will be apprecisted.

Thanks

CB

[CBMach]

Hello
Now I can fix this problem
A20B-2101-0013 PCB Have to repair.
Now seem all problem gone.
Thank you for all input to help me
I appreciated that

Thanks

Charlie

[gopal9763]

The problem is with the low gravity in APCC battery in the morning when you start the machine battery get an instant low charge to obtain the desired voltage , So when you restart the machine the battery becomes charge So you need to replace the battery in running machine.

Same problem face today..As u told i change battery & alarm gone.. Literally i shocked because there is no battery alarm but problem was in battery.. Thanks for idea..