Connection  09.02 
3-58  Siemens AG    6SE7087-6AK85-1AA0 
  Rectifier/Regenerating Unit    Operating instructions 
♦  Parameterizing a unit as a 12-pulse slave (see Section 3.8.3) 
Using P077 = 5 or 6, almost all settings required for the parameterization as a 12-pulse slave
 can be carried 
out automatically (see Chapter 4.3.9.1).  
Meaning of P077 = 5 or 6: 
P077= 5:
  Basic setting (index i001): 12-pulse slave (all control is carried out via the master) 
Reserve setting (index i002): stand-alone unit with operator control via PMU
 
P077= 6:
  Basic setting (index i001): 12-pulse slave (all control is carried out via the master) 
Reserve setting (index i002): stand-alone unit with operator control via OP1S
 
Note: When the reserve setting is selected, the unit operates as a stand-alone unit with on-site operator 
control. Changeover between the basic and reserve settings takes place via binary input 5 (P590=1005), but 
the reserve setting can be set permanently via P590= 1. 
Procedure for carrying out the P077-dependent factory setting (see Section 4.3.9.1):  
•  Set P051= 3 (expert mode)  
•  Set P052= 2 (Select "Initialize" function (set MLFB), so that P077 can be modified)  
•  Set P077= 5 or 6 (Select the required P077-dependent parameter setting)  
•  Set P052= 0 and press the <P> key (terminate the "initialize" function)  
•  Set P052= 1 (select the function "Generate manufacturer setting"; when  the <P> key is pressed, all
 
parameters are reset to their factory setting or to the P077-dependent value)  
 
If only
 those parameter values that are dependent on P077 are required to be changed and all other 
parameters should remain unchanged, the following procedure is necessary: 
•  Set P051= 3 (expert mode) 
•  Set P052= 2 (select "Initialize" function (set MLFB)) 
•  Note P070 and set P070= 0 
•  Set P077= 5 or 6 (select the required P077-dependent parameter setting) 
•  Set P052= 0 and press the <P> key (read in the parameter values dependent on P077) 
•  Move the F060 error message into the "background" by pressing <P>+<H> 
•  Set P052= 2  (select "Initialize" function (set MLFB) again) 
•  P070= noted value (restore MLFB) 
•  P052= 0 and press the <P> key (MLFB is read in and the dependent parameters P071, P075 and P076 
are set) 
•  Move the F060 error message into the "foreground" again by pressing <P>+<T>, and reset by pressing 
the <P> key 
 
Additional parameter settings for the 12-pulse slave: 
•  P051= 3 (expert mode) 
•  P688 = 1 (Peer-to-Peer protocol) 
•  Switch off earth short-circuit test (P354 = 0), when the unit is supplied from an unearthed supply, e.g. 
from the delta winding of the 12-pulse transformer 
•  For factory settings in accordance with  P077= 5 or 6, binary input 1 is a source for "No external fault 1" 
and binary input 2 is a source for "No external warning 1". If this is not required, e.g. in the case of open 
terminals, P575 = 1 and P588 = 1 must be set. 
 
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