Siemens SINAMICS G120 Operations Instructions Page 291

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Appendix
A.1 Application Examples
Inverter with CU240B-2 and CU240E-2 Control Units
Operating Instructions, 01/2011, FW 4.4, A5E02299792B AB
289
3$5B:5
1HWZRUN 3DUDPHWHUVIRUZULWLQJ
1HWZRUN :ULWHUHTXHVW)&
/
7'%'%:
0: 
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7'%'%:
0: 
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7'%'%:
0: 
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7'%'%%
0% 
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7'%'%%
0% 
&$//
5(4 0
6)& 
,2,'
/$''5 :
5(&180 %)
%
5(&25'
5(7B9$/ 0:
 3'%'%;%<7(
%86<  0
80
50
60

/
7'%'%%
0%
/
7
7
'%'%%
/
'%'%%
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0% 
Figure A-4 Writing parameters
Explanation of FC 3
Table A- 5 Request to change parameters
Data block DB 3 Byte n Bytes n + 1 n
Reference
MB 42
02 hex: Change request 0 Header
01 hex Number of parameters
MB 44
2
10 hex: Parameter value Number of indices
00 hex
4
Parameter number
MW 21
6
Address,
parameter 1
Number of the 1st index
MW 23
8
Format
MB 25
Number of index values
MB 27
10Values,
parameter 1
Value of 1st index
MW35
12
SFC 58 copies the specifications for the parameters to be written from DB 3 and sends them
to the converter. No other write requests are permitted while this one is being processed.
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