6. Reset the BLOCK binary input.
7. Check for reset lock out input RESET_LO to reset PRES_LO lock out signal.
8. Conduct these steps for temperature input as well to detect and reset TEMP_ALM
and TEMP_LO signals.
9. Continue to test another function or end the test by changing the TestMode
setting to off.
10.13.1.2 Completing the test
Continue to test another function or end the test by changing the TestMode setting to
Off. Restore connections and settings to their original values, if they were changed for
testing purposes.
10.13.2 Liquid medium supervision SSIML
Prepare the IED for verification of settings as outlined in section
"Liquid medium
supervision SSIML" and section "Completing the test" in this chapter.
Check that the input logical signal BLOCK is logical zero and that on the local HMI,
the logical signals LVL_ALM, LVL_LO, TEMP_ALM and TEMP_LO are equal to
logical zero.
10.13.2.1 Testing the liquid medium supervision for alarm and lock out conditions
1. Connect the binary inputs to consider liquid level to initiate the alarms.
2. Consider the analogue level input LEVEL to initiate the alarms.
3. Liquid level lock out input can be used to set LVL_LO signal, check the signal
status in local HMI under Main menu/Test/Function status/Monitoring/
Liquid medium supervision SSIML/LVL_LO
4. Reduce the liquid level input below LevelAlmLimit, check for LVL_ALM signal
status in local HMI under Main menu/Test/Function status/Monitoring/
Liquid medium supervision SSIML/LVL_ALM
5. Activate BLOCK binary input, the signals LVL_ALM, LVL_LO should
disappear.
6. Reset the BLOCK binary input.
7. Check for reset lock out input RESET_LO to reset the LVL_LO lock out signal.
8. Conduct these steps for temperature input as well to detect and reset TEMP_ALM
and TEMP_LO signals.
9. Continue to test another function or end the test by changing the TestMode
setting to Off.
10.13.2.2 Completing the test
Continue to test another function or end the test by changing the TestMode setting to
Off. Restore connections and settings to their original values, if they were changed for
testing purposes.
Section 10 1MRK 506 355-UEN A
Testing functionality by secondary injection
234 Line distance protection REL670 2.1 IEC
Commissioning manual
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