18. Hardware description
Hardware modules
Power supply module PSM
The power supply module is used to provide the correct
internal voltages and full isolation between the terminal and
the battery system. An internal fail alarm output is available.
Binary input module BIM
The binary input module has 16 optically isolated inputs and
is available in two versions, one standard and one with
enhanced pulse counting capabilities on the inputs to be
used with the pulse counter function. The binary inputs are
freely programmable and can be used for the input of logical
signals to any of the functions. They can also be included in
the disturbance recording and event-recording functions. This
enables extensive monitoring and evaluation of operation of
the IED and for all associated electrical circuits.
Binary output module BOM
The binary output module has 24 independent output relays
and is used for trip output or any signaling purpose.
Static binary output module SOM
The static binary output module has six fast static outputs
and six change over output relays for use in applications with
high speed requirements.
Binary input/output module IOM
The binary input/output module is used when only a few input
and output channels are needed. The ten standard output
channels are used for trip output or any signaling purpose.
The two high speed signal output channels are used for
applications where short operating time is essential. Eight
optically isolated binary inputs cater for required binary input
information.
mA input module MIM
The milli-ampere input module is used to interface transducer
signals in the –20 to +20 mA range from for example OLTC
position, temperature or pressure transducers. The module
has six independent, galvanically separated channels.
Optical ethernet module OEM
The optical fast-ethernet module is used to connect an IED to
the communication buses (like the station bus) that use the
IEC 61850-8-1 protocol (port A, B). The module has one or
two optical ports with ST connectors.
Serial and LON communication module SLM, supports SPA/
IEC 60870-5-103, LON and DNP 3.0
The serial and LON communication module (SLM) is used for
SPA, IEC 60870-5-103, DNP3 and LON communication. The
module has two optical communication ports for plastic/
plastic, plastic/glass or glass/glass. One port is used for serial
communication (SPA, IEC 60870-5-103 and DNP3 port or
dedicated IEC 60870-5-103 port depending on ordered SLM
module) and one port is dedicated for LON communication.
Line data communication module LDCM
Each module has one optical port, one for each remote end
to which the IED communicates.
Alternative cards for Medium range (1310 nm single mode)
and Short range (850 nm multi mode) are available.
Galvanic RS485 serial communication module
The Galvanic RS485 communication module (RS485) is used
for DNP3.0 communication. The module has one RS485
communication port. The RS485 is a balanced serial
communication that can be used either in 2-wire or 4-wire
connections. A 2-wire connection uses the same signal for RX
and TX and is a multidrop communication with no dedicated
Master or slave. This variant requires however a control of the
output. The 4-wire connection has separated signals for RX
and TX multidrop communication with a dedicated Master
and the rest are slaves. No special control signal is needed in
this case.
GPS time synchronization module GTM
This module includes a GPS receiver used for time
synchronization. The GPS has one SMA contact for
connection to an antenna. It also includes an optical PPS ST-
connector output.
IRIG-B Time synchronizing module
The IRIG-B time synchronizing module is used for accurate
time synchronizing of the IED from a station clock.
Transformer input module TRM
The transformer input module is used to galvanically separate
and transform the secondary currents and voltages generated
by the measuring transformers. The module has twelve inputs
in different combinations of currents and voltage inputs.
Alternative connectors of Ring lug or Compression type can
be ordered.
High impedance resistor unit
The high impedance resistor unit, with resistors for pick-up
value setting and a voltage dependent resistor, is available in
a single phase unit and a three phase unit. Both are mounted
on a 1/1 19 inch apparatus plate with compression type
terminals.
Layout and dimensions
Dimensions
Bay control REC670
1MRK511232-BEN E
Pre-configured
Product version: 1.2
20
ABB
