Siemens CU230P-2 Especificações descarregar pdf (Página 9)

Application description

Connecting CU230P-2 DP to the PROFIBUS DP network

Commissioning of the Control Unit CU230P-2 DP with PROFIBUS ID-No: 35934076

Version 1 Issue May 2009 9/33

PDF_Commissioning_of_CU230P_2_DP_with Profibus_en_V1.doc

2.2 PROFIBUS DP cable connector and permitted cable lengths

PROFIBUS DP cable connector

For connecting the SINAMICS G120 frequency inverter, we recommend the

following

PROFIBUS DP cable connectors:

• 6GK1 500-0FC00

• 6GK1 500-0EA02

They are equipped with a switch through which the bus terminating resistor

can be connected.

Permissible cable lengths

The permissible cable lengths depend on the baud rate and the PROFIBUS

cable.

For more information, visit:

(http://www.automation.siemens.com/net/html_76/support/printkatalog.htm

)

2.3 General specifications and requirements for fault-free

communication

You can integrate up to 126 stations into a PROFIBUS DP network. These

must be subdivided into segments of up to 32 stations. You must activate

the bus terminating resistor for the first and last stations of each segment.

You can disconnect one or more slaves from the bus (by unplugging the

bus connector) without interrupting the communication for the other

stations. It is important to ensure that a bus terminating resistor is

connected to the "first" and "last" nodes.

Note

Communication with the controller, even when the line voltage is

switched off

You will have to supply the Control Unit with 24 V DC on terminals 31 and

32 if you require communication to take place with the controller when the

line voltage is switched off.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 ... 32 33

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Siemens CU230P-2 Especificações Página 9