09.02  Start-Up 
Siemens AG    6SE7087-6AK85-1AA0 
4-3 
Rectifier/Regenerating Unit    Operating Instructions 
"Indexed" parameters: 
 
  ♦  Several parameter values are assigned to one parameter number, which can be accessed via 
the separate indices  (in brief: i001, i002, etc.). 
The meaning of the indices of the respective parameter (parameter number) is explained in the 
parameter list in Chapter 5. 
 
P683
i001 = 0
i002 = 2
Bus address for serial interface SST1 (CUR)
Bus address for serial interface on the SCB module 
Index 1
Index 2
Example:
 
 
 
"Data sets":
 
 
  ♦  "Indexed" parameters can be sub-divided according to data sets. 
A data set comprises a group of several parameter values with the same index. Depending on 
the status of certain control word bits, a specific data record is accessed 
(see the function diagram for "selecting the data sets " in Section 4.4). 
There are two types of data set: 
 
♦  Data sets for basic/reserve setting (B/R) can be selected via control word 2/bit 30 
Associated source selection parameter: P590 
Affected parameters: P486, P554 to P557, P561, P565 to P569, P571 to P575, 
P578, P579, P583 and P586 to P589 
e.g. for changing over between manual and automatic operation 
 
♦  4 changeover reserve data sets (RDS) 1, 2, 3 or 4, selectable via the bit combination 
in control word 2/bits 18 and 19. 
Associated source selection parameters: P578, P579 
Affected parameters: P140 to P144, P160, P161, P310 to P320, P329, P408, 
P517, P518, P773 to P777 
Used, e.g. for alternating operation of different inverter types on one 
rectifier/regenerating unit 
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