Siemens 6RA7086-6KS22 Operating Instructions Manual page 559

6ra70 series, microprocessor-based converters from 6kw to 2500kw for variable-speed dc drives, simoreg dc master

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11.47 Fault memory

Fault memory

Display of fault messages generated in response to 8 recent faults. A fault

value and fault time is assigned to each fault number (see Section 10 for

details of fault numbers and fault values).The interrelationship between the

associated parameters is shown in the diagram below.

The fault numbers of the last (maximum 8) fault events are stored under the

indices of parameter P947. r947.001 displays the fault number of the current

(still not acknowledged) fault, index 9 displays the number of the most

recent acknowledged fault, index 17 the fault number of the second most

recent acknowledged fault, etc. An entry of "0" means that no "earlier" fault

has occurred. Since only one fault message can be stored with respect to

any fault event on the SIMOREG 6RA70, only indices 1, 9, 17, 25, 33, 41,

49 and 57 are relevant.

A fault value is assigned to each fault number in the corresponding index of

parameter r949. This provides further information about the nature of the

In addition, the fault time (the current reading of the hours run counter as

the fault occurred (r048)), is stored for each fault in r049. The data for the

current (not yet acknowledged) fault are stored as the "Hours run counter

reading" in index 1. The data for earlier, already acknowledged faults are

stored under the following indices.

Fault number

Plaintext information about the fault numbers is available under the

corresponding index of parameter r951.

Fault value of faults, allows more detailed diagnosis for a variety of

The fault values are stored in the same indices as the associated fault

numbers (r947) - see parameter r947.

6RX1700-0AD76

SIMOREG DC Master

Operating Instructions

Fault time [h]

Parameter list

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