Specifications

11 Maintenance 01.99

11-6 SINUMERIK 840C, OEM Version for Windows (BA)

Therefore, please pay attention to the following guidelines:

• Electronics modules must not be touched unless it is absolutely vital for the

work to be done.

• Before touching a module, any static in the body must be discharged. The

easiest way to do this is by touching a conductive, earthed part of the

structure (e.g. bare metal parts on the cabinet, socket earth contact)

immediately beforehand.

• Modules must not be brought into contact with materials that are good

insulators (e.g. plastic foil, insulated desk tops, clothing made from

synthetic fibres).

• Modules must be placed on conductive surfaces only.

• Modules must be plugged in or unplugged only when at zero potential.

• The power supply must be switched on before any signal voltages are

applied.

• Modules and components must always be stored and carried in conductive

packing (e.g. metalized plastic boxes).

• If the packing is not conductive, the modules must be wrapped in

conductive material prior to packing. For example, conductive foam rubber

can be used.