5.2.10 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 Contacts 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.
5.2.11
TEST SERIAL COMMUNICATION PORT RP1
You need only perform this test if the IED is to be accessed from a remote location with a permanent serial
connection to the communications port. The scope of this test does not extend to verifying operation with
connected equipment beyond any suppied protocol converter. It verifies operation of the rear communication port
(and if applicable the protocol converter) and varies according to the protocol fitted.
5.2.11.1 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:
Figure 313: RP1 physical connection
Chapter 25 - Commissioning Instructions P543i/P545i
648 P54x1i-TM-EN-1
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