Siemens Comprehensive Guide to Network Card Fault Messages and Troubleshooting

relevant terminal in the case of F018)

P952 number of faults

A text is also displayed for each individual fault in parameter r951 (fault text list). These texts can, for example, be displayed on the OP1S.

If a fault is not acknowledged before the electronics supply voltage is switched off, then fault message F040 will be displayed when the supply is next switched on.

9.1.2List of fault messages

NOTE

Further information about the causes of fault messages

When a fault message is activated, values providing more information about the fault cause are stored in parameter r047. Where the values can be interpreted by the user, they are included in the following list of fault messages.

The value in r047.001 is referred to as the "fault value". This is also stored in r949 which also contains the fault values belonging to older fault messages. The values in r047 are overwritten when the next fault message occurs.

Values for r047 which are not included in the list below can help a SIEMENS specialist to locate a fault cause. For this reason, all indices of parameter r047 should be read out whenever a fault message occurs, even if the meaning of the individual indices of parameter r047 is not specified for every fault message listed below.

Please note: Before you contact SIEMENS with any query regarding a fault message, please make a note of the contents of all indices of parameter r047.

Fault	Description
No.	Cause as a function of fault value	Further information (r047.002 to r047.016)
	(r047.001, r949.001 or r949.009 with acknowledged error)

9.1.2.1		Supply faults
F001	Failure of electronics power supply
	(active in all operating states)
	Failure of the electronics supply voltage (terminals 5U1, 5W1, 5N1) in “RUN” state for longer than the “restart” time set in
	parameter P086 or the electronics are operating on undervoltage.
	Possible fault causes:
	♦ Line contactor has opened in “RUN” state
	♦	Brief supply failure
	♦ Supply voltage too low
	Fault value:		r047 Index 002 to 016:
	1	Electronics supply voltage in “RUN” has been interrupted	i002 Duration of actual supply failure in 1/10 seconds
		for longer than setting in P086
	2	Supply failure prewarning responds periodically	-
	3	Supply failure prewarning is active for longer than 1.28 s	-

9-2	Siemens Energy & Automation
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