Addition Of Control Functions For Primary Devices And The Use Of Binary Inputs And Outputs - ABB RED615 Applications Manual

Section 3
RED615 standard configurations
3.1.1
34
Addition of control functions for primary devices and the use
of binary inputs and outputs
If extra control functions intended for controllable primary devices are added to the
configuration, additional binary inputs and/or outputs are needed to complement the
standard configuration.
If the number of inputs and/or outputs in a standard configuration is not sufficient, it
is possible either to modify the chosen standard configuration in order to release some
binary inputs or binary outputs which have originally been configured for other
purposes, or to integrate an external input/output module, for example RIO600, to the
protection relay.
The external I/O module's binary inputs and outputs can be used for the less time-
critical binary signals of the application. The integration enables releasing some
initially reserved binary inputs and outputs of the protection relay's standard
configuration.
The suitability of the protection relay's binary outputs which have been selected for
primary device control should be carefully verified, for example make and carry and
breaking capacity. If the requirements for the primary device control circuit are not
met, using external auxiliary relays should be considered.
1MRS758127 C
RED615
Application Manual