No voltage at the terminals of the Siemens PLC S7-400 F-AI card
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No voltage at the terminals of the Siemens PLC S7-400 F-AI card
There’s a very small type of fuse; we’ve had several of them burn out. Additionally, there are two small connection pieces at the front of the fuse – two per channel. The spare pieces aren’t identical to those used in actual operation; they need to be rotated 90 degrees in order to make a connection, otherwise the channel remains unconnected and cannot form a complete circuit.
Thank you, it’s desensitized now; the issue has been resolved