The terminal numbering (e.g., A1, A2, 15-16-18, 25-26-28) follows European standards but varies by function. Incorrect wiring can destroy the timer or damage connected equipment.
If you cannot immediately locate the diehl multi timer 181-5 pdf, you can perform basic checks: diehl multi timer 181-5 pdf
But again, for definitive settings, you need the PDF. The terminal numbering (e
Step-by-step guide to set the time range via DIP switches or jumper selection (depending on revision). But again, for definitive settings, you need the PDF