Due to differences in the parameter structure:

• this application only applies to MICROMASTER 4 and SINAMICS CU240x with Firmware < V4.0
• this application cannot be used for SINAMICS CU230.

For SINAMICS G120 with Firmware (FW) from V4.4 please use the following link. Entry-ID 62883732

Task:

Using this application, and the FFBs (free function blocks), a circuit is described that offers drive inverters the possibilities of closing the main contactor by itself, and enable operating (enable/permissive) signal automatically.

Solution:

The circuit is implemented using free function blocks (FFBs).
This means that there is no additional control expenditure in the form of external components - that would be necessary in order to ensure the correct sequencing.
Correct operation requires an external 24V DC power supply for the drive inverter:
• MICROMASTER 4 via MICROMASTER Profibus Module
• SINAMICS G120 via terminals 31 and 32 of the Control Unit
• SINAMICS G120D via the logical 24V supply (IN) of the Control Unit

This solution can be used for:
• MICROMASTER MM430
• MICROMASTER MM440
• SINAMICS G120 with Control Units CU240...
• SINAMICS G120D with Control Units CU240...


For fast parameter changes the attached script files for CU240 and MM4 can be used.
 

Downloads

Content of Downloads	Download
Documentation (English) Main Contactor Control V1.4
File Script_MM4_en.txt
File Script_G120_G120D_en.txt

History

Version	Date	Modification
V1.0	March 2003	First edition.
V1.1	November 2005	Design revised.
V1.2	September 2007	Text and figures revised, chapater "Further notes...." inserted.
V1.3	February 2008	Text and figures revised, scripts written, chapter "Executing scripts in STARTER" inserted.
V1.4	December 2010	Chapter 4.1.1 inserted