Connecting The Binary Input And Output Signals - ABB Relion 650 Series Installation Manual

1MRK 514 027-UEN D
Use a solid conductor with a cross section area between 2.5-6 mm
conductor with a cross section area between 2.5-4 mm
If the IED is equipped with a test-switch of type RTXP 24, COMBIFLEX wires with 20 A sockets
must be used to connect the CT and VT circuits.
Connectors on TRM (for location see section
transformer circuits are so called "feed-through IED blocks" and are designed for conductors
with cross sectional area up to 4 mm
should be tightened with a torque of 1Nm.
Connector terminals for CT and VT circuits, as well as terminals for binary input and output
signals, can be of either ringlug or compression connection type, depending on ANSI/IEC
standards, or customers choice.
Table 5:
Connector type
Screw compression type
Terminal blocks suitable for ring lug
terminals
6.1.5

Connecting the binary input and output signals

Auxiliary power and signals are connected using voltage connectors. Signal wires are
connected to a female connector (see Figure 21) which is then plugged into the corresponding
male connector (see Figure 22) located at the rear of the IED. For location of BIM, BOM and IOM
refer to section
in Figure 13, Figure
If the IED is equipped with a test-switch of type RTXP 24, COMBIFLEX wires with 20 A sockets,
1.5mm² (AWG16) conductor area must be used to connect the auxiliary power.
Procedure
1. Connect signals to the female connector
The conductors can be of rigid type (solid, stranded) or of flexible type.
The female connectors accept conductors with a cross section area of 0.2-2.5 mm
24-14). If two conductors are used in the same terminal, the maximum permissible cross
section area is 0.2-1 mm
If two conductors, each with area 1.5 mm
terminal, a ferrule must be used, see figure 23. Crimp this ferrule properly to the wire
using tools as recommended by the supplier of the ferrules (keep stripping length of the
cable to minimum 10 mm). The fastening screw shall be tightened with a torque of 0.4
Nm (This torque applies to all binary connectors).
2. Plug the female connector to the corresponding back-side mounted male connector
3. Lock the female connector by fastening the lock screws
650 series
Installation manual
CT and VT circuit connectors
"Rear side connectors". Connection diagrams for BIM, BOM and IOM are shown
16 and Figure 17.
Do not insert anything else to the female connector but the corresponding
male connector. Inserting anything else (such as a measurement probe) may
violate the female connector and prevent a proper electrical contact between
the printed circuit board and the external wiring connected to the screw
terminal block.
2
(AWG 24-18).
© Copyright 2017 ABB. All rights reserved
2
(AWG14-12).
"Rear side connectors") for current and voltage
2
(AWG 12). The screws used to fasten the conductors
Rated voltage and current
250 V AC, 20 A
250 V AC, 20 A
2
(AWG 16) need to be connected to the same
Section 6
Connecting
2
(AWG14-10) or a stranded
SEMOD53376-2 v6
Maximum conductor area
2
4 mm (AWG12)
2
2 x 2.5 mm (2 x AWG14)
2
4 mm (AWG12)
2
(AWG
M11991-10 v4
M11992-9 v8
37