ABB Relion 630 Series, Technical Manual

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to unwanted operations. This is only valid if the IED is put in TEST
mode by a binary input, not by LHMI.
The TESTMODE function block can be used to automatically block functions when
a test handle is inserted in a test switch. A contact in the test switch (RTXP24 contact
29-30) can supply a binary input which in turn is configured to the TESTMODE
function block.
Each of the functions includes the blocking from the TESTMODE function block.
The functions can also be blocked from sending events over IEC 61850 station bus to
prevent filling station and SCADA databases with test events, for example during a
maintenance test.
3.13.4 Application
The protection and control IEDs may have a complex configuration with many
included functions. To make the testing procedure easier, the IEDs include the feature
that allows individual blocking of a single-, several-, or all functions.
This means that it is possible to see when a function is activated or trips. It also enables
the user to follow the operation of several related functions to check correct
functionality and to check parts of the configuration, and so on.
3.13.5 Signals
Table 43: TESTMODE Input signals
Name Type Default Description
INPUT BOOLEAN 0 Sets terminal in test mode when active
Table 44: TESTMODE Output signals
Name Type Description
ACTIVE BOOLEAN Terminal in test mode when active
OUTPUT BOOLEAN Test input is active
SETTING BOOLEAN Test mode setting is (On) or not (Off)
NOEVENT BOOLEAN Event disabled during testmode
1MRS757256 F
Section 3
Basic functions
PML630/Compact Load-Shedding Solution 75
Technical Manual