Releasing The Function To Be Tested - ABB Relion 670 Series Commissioning Manual

1MRK 511 403-UUS Rev. K
ANSI09000652 V1 EN-US
Figure 19:
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.
Procedure
1. Click the Function test modes menu.
Bay control REC670
Commissioning manual
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Connection example of the test equipment to the IED when test equipment is
connected to the transformer input module
Any function is blocked if the corresponding setting in the local HMI under Main menu /
Test /Function test modes menu remains Enabled, that is, the parameter Blocked is set
to Yes and the parameter TESTMODE under Main menu/Test /IED test mode remains
active. All functions that were blocked or released in a previous test mode session, that
is, the parameter Test mode is set to Enabled, are reset when a new test mode session
is started.
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ANSI09000652-1-en.vsd
Section 10
Testing IED operation
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