Circuit Identification (P052 = 21) - Siemens SIMOVERT Master Drives 6SE70 Betriebsanleitung

09.02
4.3.9.7 Circuit identification
This function identifies the DC link and the supply and re-assigns certain control parameters.
Specific closed-loop control parameters are re-assigned in connection with this function.
Only the parameters of the reserve data sets currently selected are modified (see "Data sets" in Section 4.1.2
and "Selecting the data sets" in Section 4.4).
Circuit identification (i.e. automatic setting of the appropriate parameters) must be carried out, otherwise error
message F061 will be generated when the unit is switched on.
While circuit identification is being carried out, the constellation of supply, and reactor arrangement as well as
the capacitive load connected to the DC link terminals of the common rectifier must be identical to the
constellation for normal operation later. The main reason being that the Ud controller gain that is set depends
on the measured intermediate circuit capacitance.
If more than one inverter of the series SIMOVERT Master Drives 6SE70 are to be operated with the common
rectifier, whereby the number of inverters connected to the DC link at any one time varies, it is recommended
that reserve data set selection is implemented. Up to 4 different configurations can be formed for this purpose
that are each assigned to a reserve data set. Circuit identification has to be carried out separately for each of
these reserve data sets. During circuit identification, the appropriate configuration must exist for the selected
data set.
Circuit identification must be carried out whenever the supply network changes and/or whenever the number
of connected inverters changes.
The "Circuit identification" function can be aborted at any time with an OFF command. This triggers fault
message F091 "Circuit identification aborted by external cause".
During circuit identification, which is carried out in a series of separate stages, code numbers appear on the
PMU that indicate the current working stage.
If an error occurs during a stage, the circuit identification function is aborted. The exact cause of the abort is
indicated in the fault value r949 assigned to the fault number memory r947 (for a non-reset fault in index i001
and if reset in index i009).
You will find a detailed description of the fault messages, associated fault values and a description on the
warning messages in Chapter 7 "Faults and Warnings".
Siemens AG 6SE7087-6AK85-0AA0
Common Rectifier Operating Instructions
(P052 = 21)
NOTE
ENGLISH
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