Reliability, Safety 2.5.2 Maintenance and Servicing ѕ Precautions regulation VBG 4.0 must be observed, and section 8 (Admissible deviations when working on parts) in particular, when measuring or checking a controller in a power-up condition. ѕ Repairs must be carried out by specially trained Kuh- nke staff only (usually in the main factory in Malente). Warranty expires in every other case. ѕ Only use parts approved of by Kuhnke. Only genuine Kuhnke modules must be used in modular control- lers. ѕ Modular systems: Always plug or unplug modules in a power-down state. You might otherwise damage the modules or (possibly not immediately recognisa- bly!) inhibit their functionality.
ѕ Always dispose of any batteries and accumulators as hazardous waste. 18 E 327 GB 10.06.2003