Kuhnke Electronics Instruction Manual

Reliability, Safety
2.5.2 Maintenance and Servicing
� Precautions regulation VBG 4.0 must be observed
when measuring or checking a controller in a powerup
condition. This applies to section 8 (Admissible
deviations when working on parts) in particular.
� Repairs must be carried out by specially trained
Kuhnke staff only (usually in the main factory in
Malente). Warranty expires in every other case.
� Only use parts approved of by Kuhnke. Only genuine
Kuhnke modules must be used in modular
controllers.
� Modular systems: always plug or unplug modules in a
power-down state. You might otherwise damage the
modules or (possibly not immediately recognisably!)
inhibit their functionality.
� Always dispose of any batteries and accumulators as
hazardous waste.
22 E 700 GB