Alarm 2 on A06B 6079 H201 servo drive

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05-06-2019, 12:36 PM
Lomach

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Alarm 2 on A06B 6079 H201 servo drive

Hi, I have got a machine with an alarm number 2 on the A06B 6079 H201 servo drive which does not appear if I turn the machine on without connectors JX1A and JX1B connected. If I connect either one it will start up with the alarm 2. Both servos and encoders are connected so I am assuming there is not an issue with them. My main question is does anybody know if this is a servo drive fault or could it be something else? I have attached a couple of photos to show the issue.

Thank you

Attachment 419366 Attachment 419368
05-06-2019, 03:57 PM
tristarcnc

Re: Alarm 2 on A06B 6079 H201 servo drive

The problem you have is within the servo amp and is quite common on the 6079 series.
05-06-2019, 04:17 PM
Lomach

Re: Alarm 2 on A06B 6079 H201 servo drive

Hi Tristarcnc. Thanks for the reply. I have checked the capacitors and replaced the 621 opto, c4151 transistor but had no affect. There is a 15v regulator which I haven’t checked yet. As it’s the 5v supply that’s the issue (I think) would you mind pointing me in the right direction.

Thank you
05-06-2019, 05:36 PM
mbservice

Re: Alarm 2 on A06B 6079 H201 servo drive

What machine is it on ?
05-06-2019, 05:43 PM
Lomach

Quote:

Originally Posted by mbservice

What machine is it on ?

Hi. It’s a Fanuc Robocut Alpha 0-C with a 16-WC control. It’s new to me and was purchased knowing it had this fault.

Thanks
12-11-2019, 06:29 PM
tetrateknoloji

Quote:

Originally Posted by tristarcnc

The problem you have is within the servo amp and is quite common on the 6079 series.

Merhaba bende ayn? alarm? çözmeye çal???yorum. IPM mi drgi?tirmem laz?m. Nas?l tamir edebilirim.
09-19-2022, 08:37 PM
matiasjuarez1993

Re: Alarm 2 on A06B 6079 H201 servo drive

Quote:

Originally Posted by Lomach

Hi. It’s a Fanuc Robocut Alpha 0-C with a 16-WC control. It’s new to me and was purchased knowing it had this fault.

Thanks

Hello, how did you repair that? I have similar failures in my drive. It says low voltage in the manual, but its the only servodrive where I have that problem so its not a voltage input problem.
Thanks