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Need wiring help on Traub TNS 30/42

1 Armani and Run

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Aug 16, 2025
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I'm working on a Traub TNS 30/42 that came with the cabinet disconnected and a lot of wires cut. I've managed to piece most of it back together using diagrams from the 30D and 42 models, but there are still differences with the safety hood switches. The relays are in place, but I'm not sure how to wire S1 and S2 correctly. Do you guys have the proper diagram or at least a photo of that sheet? Please, it would mean a lot. Thanks in advance.
 
If you cannot find the exact diagram, your best solution is reaching out to Index/Traub support because they usually provide the original electrical sheets on request. I would not guess on S1 and S2 since the safety circuit has to be exact, so a proper diagram is the only safe way forward.
 
If you cannot find the exact diagram, your best solution is reaching out to Index/Traub support because they usually provide the original electrical sheets on request. I would not guess on S1 and S2 since the safety circuit has to be exact, so a proper diagram is the only safe way forward.
To be fair, it's not entirely impossible to do this, but the problem is that it's too long, too complicated and there are 10 different ways you can mess things up. Either find someone who's done this or email Traub.
 
Hood safety switches, S1 and S2, are usually wired together in the safety system. One checks the main hood, while the other might watch a backup lock or another part of the hood. They're typically linked up with the machine's safety relay.
 
If the relays are already seated you’re halfway there, but I’d be cautious about guessing the switch logic. Hopefully someone here has a clean photo of the original wiring sheet.
 
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