Schneider Electric XPSMF2DO801 manual Offline Proof-Test, Execution, Periodic Proof Testing

Application and Function

Offline Proof-Test

Overview	The offline proof-test recognizes dangerous concealed faults that would affect the
	safe function of the plant.
	Safety systems have to be subjected to an offline proof test in intervals of 10 years.
	By an analysis using the calculation tool SILence, the interval often may be
	extended. (SILence is a separate program. Contact the service for more information
	or take a look at the HIMA homepage for a test version of the software SILence.)
	For relay modules, the proof test for the relays has to be carried out in intervals
	defined for the respective plant.
Execution of the	The execution of the offline proof test depends on the configuration of the plant
Offline Proof	(EUC = equipment under control), which risk potential it has, and which standards
Test	for operation are applied and form the bases for the approval by the test authority in
	charge.
	According to the standards IEC 61508 1-7, IEC 61511 1-3, IEC 62061, and
	VDI/VDE 2180 sheet 1 to 4, in case of safety-related systems the operating
	company has to arrange for proof tests.

Periodic Proof Testing

The modules can be proof tested by executing the full safety loop.

In practice the input and output field devices have a more frequent proof test interval (e.g., every 6 or 12 months) than the modules. If the end-user tests the complete safety loop because of the field devices then the modules are automatically included in these tests. No additional periodic tests are required for the modules.

If the proof test of the field devices does not include the modules then the PES needs to be tested as a minimum once in 10 year. This can be done by executing a reset of the modules.

In case there are periodic proof test requirements for specific modules then the end- user should refer to the data sheets of these modules.

34 33003405 07/2007