ABB RES670 2.1, Commissioning Manual

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IEC 61850
ANSI09000652 V1 EN
Figure 20: Connection example of the test equipment to the IED when test
equipment is connected to the transformer input module
10.5 Releasing the function to be tested
Release or unblock the function to be tested. This is done to ensure that only the function
or the chain of functions to be tested are in operation and that other functions are prevented
from operating. Release the tested function(s) by setting the corresponding
Blocked
parameter under Function test modes to No in the local HMI.
When testing a function in this blocking feature, remember that not only the actual
function must be activated, but the whole sequence of interconnected functions (from
measuring inputs to binary output contacts), including logic must be activated. Before
starting a new test mode session, scroll through every function to ensure that only the
function to be tested (and the interconnected ones) have the parameters
Blocked and
eventually EvDisable set to No and Yes respectively. Remember that a function is also
blocked if the BLOCK input signal on the corresponding function block is active, which
depends on the configuration. Ensure that the logical status of the BLOCK input signal is
equal to 0 for the function to be tested. Event function blocks can also be individually
blocked to ensure that no events are reported to a remote station during the test. This is
done by setting the parameter
EvDisable to Yes .
Section 10
1MRK 511 366-UUS -
Testing IED operation
86
Commissioning manual