If you are using the Settings Application Software tool you can check the physical changes of the equipment
status directly in your topology scheme.
5.2.9 TEST OUTPUT RELAYS
This test checks that all the output relays are functioning correctly.
1.
Ensure that the IED is still in test mode by viewing the Test Mode cell in the COMMISSION TESTS
column. Ensure that it is set to Blocked.
2. The output relays should be energised one at a time. To select output relay 1 for testing, set the Test
Pattern cell as appropriate.
3. Connect a continuity tester across the terminals corresponding to output relay 1 as shown in the
external connection diagram.
4. To operate the output relay set the Contact Test cell to Apply Test.
5. Check the operation with the continuity tester.
6. Measure the resistance of the contacts in the closed state.
7. Reset the output relay by setting the Contact Test cell to Remove Test.
8. Repeat the test for the remaining output relays.
9. Return the IED to service by setting the Test Mode cell in the COMMISSION TESTS menu to
Disabled.
5.2.10 TEST SERIAL COMMUNICATION PORT RP1
You need only perform this test if the IED is to be accessed from a remote location. The test will vary
depending on the communications protocol used.
It is not the intention of this test to verify the operation of the complete communication link between the IED
and the remote location, just the IED's rear communication port and, if applicable, the protocol converter.
5.2.10.1 CHECK PHYSICAL CONNECTIVITY
The rear communication port RP1 is presented on terminals 16, 17 and 18 of the power supply terminal
block. Screened twisted pair cable is used to make a connection to the port. The cable screen should be
connected to pin 16 and pins 17 and 18 are for the communication signal:
Chapter 14 - Commissioning Instructions MiCOM P747
354 P747-TM-EN-1
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