ABB REU 610 Technical Reference Manual page 111

1MRS755972
Voltage Relay
Technical Reference Manual - ANSI Version
Terminals X2.1-_ are dimensioned for one 0.5...6.0 mm
*
2
2.5 mm wires
Terminals X3.1-_ and X4.1-_ are dimensioned for one 0.2...2.5 mm
*
2
or two 0.2...1.0 mm
The energizing phase-to-phase voltages of the relay are connected to
terminals:
X2.1/1-2
*
X2.1/3-4
*
X2.1/5-6
*
For inputs for phase-to-phase voltages and residual voltage, 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 residual voltage of the relay is connected to terminals X2.1/7-
8, see 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.
The nominal voltage (100/110/115/120 V) of the matching
transformers has to be selected with SPA parameter V134.
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 requested functions are selected separately for each input in switchgroups
SGB1...5. The digital inputs can also be used to trigger the disturbance
recorder; this function is selected with SPA parameter V243.
The auxiliary voltage of the relay is connected to terminals X4.1/1-2, see
Table 5.2.1.-2. At DC supply, the positive lead is connected to terminal X4.1/
1. The permitted auxiliary voltage range of the relay is marked on the front
panel of the relay under the handle of the plug-in unit.
wires.
REU 610
2
wire or two max
2
wire
111