Communication Via Profibus Dp; Profibus Connection - Siemens SINAMICS Series Operating Instructions Manual

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Communication via PROFIBUS DP

Electric shock during connection while voltage is present

When connecting the PROFIBUS cable while voltage is present, there is a danger of

coming into contact with live components behind the terminal.

Touching live components can result in death or serious injury.

• Only connect the PROFIBUS cable to connector X126 when the unit is in a de-

Position of PROFIBUS connection and diagnostics LEDs

The PROFIBUS connection and diagnostics LEDs are located on the Control Unit (CUD).

The PROFIBUS connection is via a 9-pin Sub-D socket X126. The connections are

electrically isolated.

See also Figure 6-44 Terminal/connector arrangement on the "Control Unit (CUD)"

(Page 156) and Chapter "Description of the LEDs on the CUD (Page 635)".

PROFIBUS connection

Table 10- 33 PROFIBUS connector assignment

"Control Unit (CUD)" module

SINAMICS DCM DC Converter

Operating Instructions, 12/2018, A5E34763375A

energized state.

10.4 Communication via PROFIBUS DP

Technical specifications

Not assigned

RS485 receive/transmit data P (B)

Control signal (TTL)

PROFIBUS data ground

Positive supply voltage (5 V +/-10%)

Not assigned

RS485 receive/transmit data N (A)

Not assigned

Descriptions of functions