Siemens SMP16-CPU06 Series, Руководство пользователя

Страница: 3 / 20

SMP16-CPU06x
©Siemens AG 2001, All Rights Reserved
(4)J31069-D2085-U001-A2-7618
3
Notes on safety for SICOMP boards
Qualified personnel
A device may only be commissioned and operated by qualified personnel . For the purposes of the
safety notes in this manual, qualified personnel are persons who are authorized to commission,
ground and tag devices, systems and electrical circuits in accordance with safety standards.
ESD protective measures
Caution
Always adhere to ESD (E lectrostatic S ensitive D evice) guidelines when handling boards
and other components
marked with this symbol.
•
Never touch the boards unless necessary work makes this unavoidable.
•
When handling the boards, use a conductive and grounded work surface.
•
Wear a grounding bracelet.
•
Never touch chip pins, component connections or circuit board conductors when handling the boards.
•
Never allow boards or components to touch chargeable objects (plastics).
•
Never place components or boards in the vicinity of cathode ray tube units or television sets (minimum
distance: 10 cm).
•
Leave the boards in their special packaging until you are ready to use them. Do not take the boards out of
their packaging or touch them when registering them and so on.
•
Boards may only be installed or removed when the power is off.
Wiring of bus backplanes
System-related signal wiring is done with wrap connections for SICOMP board systems. The power
supply cables are plug-in or screw-type connections which are bundled together with cable binders.
Attention
Keep all signal wiring (particularly the interrupt signal lines) as short as possible. If long signal cables
cannot be avoided, use twisted pair wiring.
Related SICOMP literature
See the SICOMP IMC system manual for more information on installing and handling SICOMP
boards.