Installation manual

7 Background information

SINAMICS G120 (CU240S DP) Control via PROFIBUS

V1.0, Beitrags-ID: 45288241

7.2.3 FB10, Organization

This block is called-up in absolute terms in OB1 and in turn calls up FC100.

Principle of the FB10

Network Function

1 Calls the FB11 to generate the frequency setpoint

Controls the SINAMICS G120 via the axis-DB, DB1.

Calls the SINAMICS G120 control block FC100.

Provides the feedback signals – incl. error and alarm number

This network can be used as template for additional SINAMICS G120 control functions.

3 Controls the signal lamp for fault.

7.2.4 FC100, Control of SINAMICS G120

SINAMICS G120 is controlled using the FC100 via PROFIBUS.

Only signals from the Axis_DB are used to control the block - but no fixed

addresses - this is the reason that instances can be used.

This block can be used in the same way for both a standard and a Safety

SINAMICS G120.

Formal operands of the FC100

Formal operands Type

Description

Nr_Axis_DB IN Number of the Axis-DB generated using UDT1

Internal_Error OUT

Displays an internal error

0 = no error

1 = incorrect Axis-DB type (wrong UDT)

Principle structure of the FC100

Network Function

Opens the Axis_DB specified using the formal operands Nr_Axis_DB.

Generates the internal error message.

Reads-in the SINAMICS G120 status words, processes these and saves them in the

Axis_DB.

3 Resets internal error messages.

Converts frequency and torque setpoint from the Axis_DB (entered in x.x %) into the

SINAMICS G120 format (hex).

5 Enters SINAMICS G120 error and alarm number into the Axis_DB.

6 Sends control words from the Axis_DB to the SINAMICS G120