7/23/2020 10:15 PM | |
Joined: 9/27/2006 Last visit: 6/18/2024 Posts: 12260 Rating: (2671) |
Hello pn3v3s; If experience can be of help, I have had to deal with blown fuses in Siemens small form units (starting with S7-200 CPUs) over the years, and some elements remain quite constant: Siemens often uses solid-state fuses soldered on the circuit board to protect their units, near the input power wire connections. Once they are blown, they are easy to identify, or at least their last known location is easy to find: there would be remnants of a small explosion on the circuit board where the fuse was soldered. Information on the type of fuse could be found in some documents for the S7-200, they are copied in the following old thread. See if they can apply to your own CSM1277 board (if there is enough left of the blown fuse to help identify it, that is...). https://support.industry.siemens.com/tf//ww/en/posts/fixing-s7-200/33037/?page=0&pageSize=10 Hope this helps, |
Last edited by: dchartier at: 07/23/2020 22:17:15 |
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