Design Description; Input/Output Connections - ABB REF 610 Technical Reference Manual

1MRS755310
5.2.
5.2.1.
Feeder Protection Relay
Technical Reference Manual
Local parameterization
When the parameters are set locally, the setting parameters can be chosen via the
hierarchical menu structure. The wanted language can be selected for parameter
descriptions. Refer to the Operator's Manual for further information.
External parameterization
Relay Setting Tool is used for parameterizing the relay units. Adjusting the
parameter values using Relay Setting Tool is done off-line, after which the
parameters can be downloaded to the relay via a communication port.

Design description

Input/output connections

All external circuits are connected to the terminals on the rear panel of the relay.
Terminals X2.1-_ are dimensioned for one 0.5...6.0 mm
*
2
2.5 mm ( 24-12) wires
Terminals X3.1-_ and X4.1-_ are dimensioned for one 0.2...2.5 mm
*
2
0.2...1.0 mm ( 24-16) wires.
The energizing phase currents of the relay are connected to terminals:
X2.1/1-2
*
X2.1/3-4
*
X2.1/5-6
*
For inputs for phase and earth-fault currents, refer to Table 5.2.1.-1.
The relay can also be used in single or two-phase applications by
leaving one or two energizing inputs unoccupied. However, at least
terminals X2.1/1-2 must be connected.
The energizing earth-fault current of the relay is connected to terminals X2.1/7-8,
see Table 5.2.1.-1.
The input terminals of the optional I/O module are located on connection socket
X3.1, see Table 5.2.1.-4 and Table 5.2.1.-5.
When connection socket X3.1 is used, the optional I/O module must be
installed.
Terminals X4.1/21-24 and X3.1/1-6 (optional) are digital input terminals, see
Table 5.2.1.-5. The digital inputs can be used to generate a blocking signal, to
unlatch output contacts or for remote control of relay settings, for instance. The
REF 610 REF 610
2
( 20-8) wire or two max
2
wire or two
135