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Line distance protection REL670
Version 2.2
receive up to 9 analog and up to 192 binary signals
simultaneously. In 64kbit/s mode, the LDCM can be
configured to work in either analog mode or binary mode. In
analog mode, the IED can send and receive up to 3 analog
signals and up to 8 binary signals. In binary mode, the
LDCM can send and receive only binary data (up to 192
binary signals).
The IED can be equipped with up to two short range,
medium range or long range LDCMs.
Line data communication module, short, medium and
long range LDCM
The line data communication module (LDCM) is used for
communication between the IEDs situated at a distance
<110 km/68 miles or from the IED to the optical-to-electrical
converter with G.703 or G.703E1 interface located at a
distance < 3 km/1.9 miles away. The LDCM module sends
and receives data to and from another LDCM module. The
IEEE/ANSI C37.94 standard format is used.
Galvanic X.21 line data communication module X.21-
LDCM
A module with built-in galvanic X.21 converter which e.g.
can be connected to modems for pilot wires is also
available.
Galvanic interface G.703 resp G.703E1
The external galvanic data communication converter
G.703/G.703E1 makes an optical-to-galvanic conversion for
connection to a multiplexer. These units are designed for 64
kbit/s resp 2Mbit/s operation. The converter is delivered
with 19" rack mounting accessories.
23. Hardware description
Hardware modules
Numeric processing module NUM
The numeric processing module (NUM) is a CPU module
that handles all protection functions and logic.
NUM provides up to 4 optical (type LC) or galvanic (type
RJ45) Ethernet ports (one basic and three optional).
Ethernet ports can be configured as four separate or in
redundant mode PRP, HSR, or RSTP. The combination
supports two PRP, two HSR networks, or one RSTP
network.
Power supply module PSM
The power supply module is used to provide the correct
internal voltages and full isolation between the IED and the
battery system. An internal fail alarm output is available.
Alternative connectors of Ring lug or Compression type can
be ordered.
Hitachi Energy
SEMOD168481-4 v11
GUID-3C6C7DAC-1DB1-4CB8-991F-3B1D86551F28 v3
M16035-3 v5
IP14529-1 v1
M12643-3 v5
M11595-3 v6
© 2017 - 2022 Hitachi Energy. All rights reserved
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 heavy-duty
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
The optical Ethernet module (OEM) provides two additional
optical Ethernet ports. The port connectors are of optical
(type LC) or galvanic (type RJ45) Ethernet ports.
Ethernet ports can be configured as two separate or in
redundant mode PRP or HSR.
The optical Ethernet module (OEM) provides two additional
optical Ethernet ports. The port connectors are:
• SFP Optical LC
• Galvanic RJ45
Serial and LON communication module (SLM) for 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.
SLM has two optical communication ports for plastic/plastic,
plastic/glass or glass/glass fiber cables. One port is used
for serial communication (SPA, IEC 60870-5-103 or DNP3
port) and the other port is used for LON communication.
1MRK 506 372-BEN Q
M1769-3 v4
M6938-3 v4
SEMOD174196-4 v5
M6939-3 v6
M15020-3 v4
M16073-3 v10
M14933-3 v6
61
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