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
.
Any function is blocked if the corresponding setting in the local HMI under
Main
menu /Test /Function test modes
menu remains
On
, 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
On
, are reset when a
new test mode session is started.
Procedure
1.
Click the
Function test modes
menu.
The Function test modes menu is located in the local HMI under
Main menu/Test /Function
test modes
.
2.
Browse to the function instance that needs to be released.
3.
Set parameter
Blocked
for the selected function to
No
.
9.6
Verifying analog primary and secondary measurement
M11745-2 v14
Verify that the connections are correct and that measuring and scaling is done correctly. This is done
by injecting current and voltage to the IED.
Besides verifying analog input values from the merging unit via the IEC/UCA 61850-9-2LE process
bus, analog values from the transformer input module can be verified as follows.
Apply input signals as needed according to the actual hardware and the application
configuration.
1.
Inject a symmetrical three-phase voltage and current at rated value.
2.
Compare the injected value with the measured values.
The voltage and current phasor menu in the local HMI is located under
Main menu /
Measurements /Analog primary values
and
Main menu /Measurements /Analog
secondary values
.
3.
Compare the frequency reading with the set frequency and the direction of the power.
The frequency and active power are located under
Main menu /Measurements /Monitoring /
ServiceValues(MMXN) /CVMMXN:x
. Then navigate to the bottom of the list to find the
frequency.
4.
Inject an unsymmetrical three-phase voltage and current, to verify that phases are correctly
connected.
If some setting deviates, check the analog input settings under
Main menu /Configuration /Analog modules
If the IEC/UCA 61850-9-2LE communication is interrupted during current injection,
the disturbance report tool in PCM600 will display the current that was injected
before the interruption.
1MRK 506 377-UEN Rev. K
Section 9
Testing IED operation
Railway application RER670
59
Commissioning manual
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