What is FOB in electronic

Thread Starter

Aliehghaghi

Joined Jul 24, 2020
3
Hi
I faced with a problem. We have a servo mitsubishi amplifier that has an alarm. When i refer to catalogue to find the causes of this errror. It has been written : FOB is improper on circuit printed board. Now really I coudn't understand what is FOB. I surffed on the internet and actually I couldn't find anything related to electronics. I would appreciate if someone could help me.
What is FOB in pbc or in electronic?
 

jpanhalt

Joined Jan 18, 2008
10,097
Welcome to AAC.

You need to show the printed circuit board, if we are to guess. In translated materials, sometimes the words chosen are not the best choices, and acronyms (e.g., PCB) are particularly difficult to translate since word order differs in different languages.

My off the cuff guess is that FOB may have to do with a part(s) description (what we might call BOM). A FOB can also something that is be plugged in. Fuse On Board? There are just too many possibilities.
 

Thread Starter

Aliehghaghi

Joined Jul 24, 2020
3
I will send the picture of pcb but there is no fuse on board. Acually I gussed it is a fuse but there is no fuse on the board. Description of alarm is: card abnormality (A/D) and its cause is: FOB is improper on circuit printed board and remedy is : replace the board. But I want to repair the board because it is an old mitsubishi servo amplifier and we don't have any spare part.
Thank you for your help.
If you get any new information please inform me. I need urgent help since the machine doesn't work and my employer insists to repair it.
 

Thread Starter

Aliehghaghi

Joined Jul 24, 2020
3
hiAli,
Ref this link.

https://www.nexpcb.com/blog/an-introduction-to-fpc-materials

The FPC On Board (FOB) process is a brand-new methodology which involves soldering FPCs and PCBs together by SMT (Surface Mount Technology) reflow soldering. It combines both soft and hard board bonding processes.25 Jul 2019

E
Thank you for your reply. I found this link on the internet but there is no FPC on this board. That is completely a rigid pcb.I will send the picture of the board tomorrow.
 
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