Checking The Binary Input/Output Circuits; Binary Input Circuits; Binary Output Circuits; Checking Optical Connections - ABB Relion 670 Series Commissioning Manual

1MRK 511 403-UEN E
Current circuit
1. Verify that the contacts are of current circuit type.
2. Verify that the short circuit jumpers are located in the correct slots.
Voltage circuit
1. Verify that the contacts are of voltage circuit type.
2. Check that no short circuit jumpers are located in the slots dedicated for voltage.
Trip and alarm circuits
1. Check that the correct types of contacts are used.
4.10

Checking the binary input/output circuits

4.10.1

Binary input circuits

Preferably, disconnect the binary input connector from the binary input cards. Check all
connected signals so that both input level and polarity are in accordance with the IED
specifications.
4.10.2

Binary output circuits

Preferably, disconnect the binary output connector from the binary output cards. Check all
connected signals so that both load and polarity are in accordance with IED specifications.
4.11

Checking optical connections

Check that the Tx and Rx optical connections are correct.
Bay control REC670
Commissioning manual
Verify that the contact sockets have been crimped correctly and that they are
fully inserted by tugging on the wires. Never do this with current circuits in
service.
Do not insert anything else to the female connector but the corresponding
male connector. Inserting anything else (such as a measurement probe) may
damage the female connector and prevent a proper electrical contact between
the printed circuit board and the external wiring connected to the screw
terminal block.
An IED equipped with optical connections has an minimum space requirement
of 180 mm for plastic fiber cables and 275 mm for glass fiber cables. Check the
allowed minimum bending radius from the optical cable manufacturer.
© Copyright 2017 ABB. All rights reserved
Section 4
Starting up
M11722-2 v4
M11722-4 v3
M11722-8 v3
M16022-2 v8
53