Function Block; Functionality; Analog Channel Configuration - ABB RELION REX640 Technical Manual

1MRS759142 C
3.20.16.2
3.20.16.3
3.20.16.4
REX640
Technical Manual

Function block

GUID-75455BDF-A38E-411B-A6C2-636433C7D749 V1 EN
Figure 131: Function block

Functionality

The voltage switch function VMSWI performs the switching function between up to
four voltage groups (Bus1, Bus 2, Bus 3 and Bus 4).
Residual voltage input can be optional and depends of the application configuration.
The switching operation can also be associated with the residual voltage if available.
The calculated components U+, U- and U
of the wye/delta mode) are switch-controlled as well.

Analog channel configuration

VMSWI has eight analog group inputs which must be properly configured.
Table 235: Analog inputs
Input
U3P1 1)
1)
U3P2
1)
U3P3
1)
U3P4
1)
URES1
1)
URES2
1)
URES3
1)
URES4
1) Can be connected to GRPOFF
See the preprocessing function blocks in this document for the
possible signal sources. The GRPOFF signal is available in the
function block called Protection.
Basic functions
and the calculated P2P / P2E (depending
0
Description
Three-phase voltages
Three-phase voltages
Three-phase voltages
Three-phase voltages
Residual voltage (measured or calculated)
Residual voltage (measured or calculated)
Residual voltage (measured or calculated)
Residual voltage (measured or calculated)
Section 3
253