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- Wed Oct 29, 2014 9:25 pm
- Forum: Siemens Hardware & Software
- Topic: CPU S7-300 ELECTRICAL CONNECTIONS
- Replies: 1
- Views: 4675
Re: CPU S7-300 ELECTRICAL CONNECTIONS
Hello. As I red Your post, my first answer is RTFM... But. The basics... Folowing the safety rules... You should have two connections, one is for the CPU and HMI , I usually use 1mm square ( something simmilar to AWG 17 ) and it's usually enough . Second for output and relays which should be turned ...