Instruction manual

Connection box C-BOX 300
Safety precautions
S
ubject to reasonable modifications due to technical advances. Copyright Pepperl+Fuchs, Printed in Germany
Pepperl+Fuchs Group • Tel.: Germany (06 21) 7 76-0 • USA (330) 4 25 35 55 • Singapore 7 79 90 91 • Internet http://www.pepperl-fuchs.com
Date od issue 08/15/2003
5
1 Safety precautions
1.1 Power supply
• This product is intended to be installed by Qualified Personnel only.
The C-BOX 300 is intended to be supplied either by a UL Listed NEC Class 2 power
source, or a UL Listed ITE Limited Power Source (LPS), rated 10 ... 30 VDC,
minimum 0.5 A.
1.2 Safety notes
Observe the general rules for PROFIBUS components when planning the C-BOX
installation.
Please observe the following to avoid risk to personnel and damage to equipment and
to ensure that the C-BOX 300 operates correctly:
Read this information before installing the product
Safety regulations Observe the guidelines i n the VDE 0100 regulations for
handling electrical components,
Observe the applicabl e safety and accident prevention
regulations.
The C-BOX must only be install ed or uninstalled by quali-
fied technical personnel with appropriate electrotechnical
qualifications.
PROFIBUS standard Observe the guidelines in the PROFIBUS standard
EN 50 170.
Bus cable Bus wiring should only take place using special shielded,
twisted pair PROFIBUS cable. The high data transfer rates
can only be guaranteed with the correct cable type.
Cable lengths Refer to t he manual for the DP master for information on
maximum cable lengths for PROFIBUS.
Terminating resistors Terminating resistors must be used if the C-BOX is
installed at the beginning or end of the PROFIBUS cable
segment. In this case, it is recommended to use PROFI-
BUS connect ors which contain an integrated terminating
resistor. If the bus is incorrectly terminated, this can lead to
errors in data transfer or to damage to other stations on the
bus.