Outrage
Member
Hi all,
I'm just wondering what you throughts are towards monitoring the status of the power supply to individual I/O cards on a rack. For instance on 32 way input cards I generally split the supply into 2 fuses.
The problems come when one of your fuses fails, how do you diagnose the failure?
In the past ive wired back a feed from each of the fuses into an input card, which gives you a concise alarm condition of individual fuses but depending on the number of I/O cards, you can start using up a lot of I/O for panel diagnostics. Ive also done it using a relay per fuse with the outputs of all the relays wired in series to give you a common healthy signal, which isn't as concise but still gives you a fault signal but conversely is an expensive solution.
What's your experience and solution for monitoring supplies?
Cheers,
Lee
I'm just wondering what you throughts are towards monitoring the status of the power supply to individual I/O cards on a rack. For instance on 32 way input cards I generally split the supply into 2 fuses.
The problems come when one of your fuses fails, how do you diagnose the failure?
In the past ive wired back a feed from each of the fuses into an input card, which gives you a concise alarm condition of individual fuses but depending on the number of I/O cards, you can start using up a lot of I/O for panel diagnostics. Ive also done it using a relay per fuse with the outputs of all the relays wired in series to give you a common healthy signal, which isn't as concise but still gives you a fault signal but conversely is an expensive solution.
What's your experience and solution for monitoring supplies?
Cheers,
Lee