8.5.5 Selecting internal fault test
The internal fault may be tested by using the LHMI. When enabling the test, the
internal relay fault output contact is activated, the green Ready LED is flashing and
internal fault test indication is shown on the LHMI. See the technical manual for
the internal relay fault output contact location. The internal fault can only be
activated by using the LHMI.
Differing from real internal fault situation, the other output contacts
are not released and locked during the test. In other words,
protection functions can operate and trip the outputs when the
internal fault is tested.
1.
Select Main menu/Tests/IED test/Internal fault test and press .
IED test
Test mode
=Normal mode
Internal fault test
=Test o
A
!
GUID-B0605170-7A37-400A-B31A-496CC607C12B V1 EN-US
Figure 62: Internal fault test
2.
Select the value with or .
3.
Press to confirm the selection.
8.5.6 Selecting IED blocked or IED test and blocked mode
The IED blocked mode and the IED test and blocked mode can be activated using
the LHMI. The yellow Start LED flashes when the device is in the IED blocked or
IED test and blocked mode. The green Ready LED flashes to indicate that the IED
test and blocked mode is activated. The test mode can be changed from the LHMI
if Control authority is set to "Local". Activation by remote client is possible, see
the technical manual.
The Ready LED also flashes if the IED detects a diagnostic failure.
Check the test mode setting and the protection relay's IRF alarm
contact status to find the reason of the failure.
The test mode can be used for simulated testing of functions and outputs without
providing current inputs. The IED blocked mode can be used to block the physical
outputs to the process.
1.
Select Main menu/Tests/IED test/Test mode and press .
Section 8 2NGA000823 A
Commissioning
84 REX610
Operation Manual
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