RS 485 port burn out on CPU

ericsul

Member
Join Date
Dec 2005
Location
Nethanya
Posts
12
hello,
Anybody knows how to protect port RS 485 on CPU 001 Versamax GEfanuc from electric noise or other RF etc...
The wiring was done as state of the art shielded cable, optical protected converter RS 485-232 from MOXA AS 53 with individual power supply, What do more to prevent this event to happen again?
Thanks for your advices
ERIC
 
Hello Mats,
Thanks for your reply, what I 'm need to check more than I already did. The power supply is protected and earthed and all the analogue inputs are with cable shielded connected on one side to the ground ???? Which kind of checking you proposed ?
Best regards
ERIC
 

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