Hitachi EDS500 Series User manual

Power Grids
EDS500 series - FSK modems
Part 1: Devices
Manual Release 2

Revision
Revision
Document identity: 1KGT151042 V001 1
Revision: Date: Changes:
0 08/2019 Initial version
1 04/2021 Disclaimer
2 04/2023 Minor corrections
2 1KGT151042 V001 1

Contents
Contents
1 Introduction............................................................................................................................. 5
1.1 About the Manual EDS500 series - FSK modems........................................................5
1.2 References..................................................................................................................... 5
2 Safety Instructions and Regulations....................................................................................7
2.1 Introduction.....................................................................................................................7
2.2 Safety Indication Symbols............................................................................................. 7
2.3 Other Indication Symbols.............................................................................................. 8
2.4 Applicable Standards and Directives for Installation and Operation............................. 8
2.5 Qualified Personnel........................................................................................................9
2.6 Intended Use..................................................................................................................9
2.7 Warnings and cautions................................................................................................ 10
3 System concept.................................................................................................................... 11
3.1 Device family................................................................................................................11
3.2 Functions overview...................................................................................................... 12
3.2.1 Applications..................................................................................................12
3.2.2 Connectivity..................................................................................................12
3.2.3 Modulation....................................................................................................12
3.2.4 Multi-channel................................................................................................12
3.2.5 RTU560 integration......................................................................................13
3.3 Network structures....................................................................................................... 13
3.3.1 Line topology............................................................................................... 13
3.3.2 Point-to-point topology.................................................................................13
3.3.3 Star topology................................................................................................14
3.3.4 Multidrop star topology................................................................................ 15
4 Device description................................................................................................................17
4.1 Compact device 500FSD10.........................................................................................17
4.1.1 Overview 500FSD10....................................................................................17
4.1.2 Front view and connectors 500FSD10........................................................17
4.1.3 Device data 500FSD10............................................................................... 17
4.2 Compact device 500FSD11.........................................................................................18
4.2.1 Overview 500FSD11....................................................................................18
4.2.2 Front view and connectors 500FSD11........................................................ 19
4.2.3 Device data 500FSD11................................................................................19
4.3 Compact device 500FSD20.........................................................................................20
4.3.1 Overview 500FSD20....................................................................................20
4.3.2 Front view and connectors 500FSD20........................................................20
4.3.3 Device data 500FSD20............................................................................... 21
4.4 General data................................................................................................................ 21
4.5 Connections................................................................................................................. 22
4.5.1 Power Connector......................................................................................... 22
4.5.2 Serial interface to DTE................................................................................ 23
1KGT151042 V001 1 3

Contents
4.5.3 Interface to transmission line...................................................................... 23
4.5.4 Alarm Relay................................................................................................. 24
4.5.5 Serial Interface.............................................................................................25
4.5.6 Extension Interface...................................................................................... 25
4.6 Display Elements......................................................................................................... 26
4.7 Controls........................................................................................................................ 26
4.7.1 Reset Button................................................................................................ 26
4.8 Maintenance.................................................................................................................27
5 Glossary.................................................................................................................................29
4 1KGT151042 V001 1

Introduction About the Manual EDS500 series - FSK modems
1 Introduction
1.1 About the Manual EDS500 series - FSK modems
The Manual consists of several parts:
Document identity Part name Explanation
1KGT151042 Part 1: Devices Description of the device portfolio
1KGT151043 Part 2: Functions Description of the functions
1KGT151044 Part 3: Command reference Description of the command line inter-
face
Table 1: Parts of the Manual EDS500 series - FSK modems
1.2 References
[1] Individual Ident EDS500 series
Hardware data sheets
Individual hardware data sheets of all devices
and auxiliary equipment
[2] Individual Ident EDS500 series
Operating instructions
Individual operating instructions of all devices
and auxiliary equipment
[3] 1KGT151041 EDS500 series
Declaration of
Conformity
Declaration of Conformity of the EDS500 FSK
modems
1KGT151042 V001 1 5

References Introduction
6 1KGT151042 V001 1

Safety Instructions and Regulations Introduction
2 Safety Instructions and Regulations
2.1 Introduction
Read the following chapter before mounting and commissioning a system or device of the EDS500
series.
2.2 Safety Indication Symbols
The following safety indication symbols are used in this documentation:
DANGER
Hazardous situation which, if not avoided, will result in death or serious injury of the operating
personnel. The provided information is necessary to know, if you configure a EDS500
series device. The safety indication informs about a restriction etc.
WARNING
Hazardous situation which, if not avoided, could result in death or serious injury of operating
personnel.
CAUTION
Hazardous situation, which, if not avoided, could result in minor or moderate injury.
ADVICE
Important information not related to personal injury but that should be observed. This symbol
is used to indicate restrictions, prerequisites, and other information that is important for
configuration.
The following safety indication symbols are used on EDS500 series devices:
Symbol Type Level of danger
Warning Hazardous situation, read documentation (data sheets and operat-
ing instructions)
Advice Protection class II equipment (IEC 61140):
•double insulated and
•with functional earthing.
Table 2: Safety indication symbols on EDS500 series devices
1KGT151042 V001 1 7

Other Indication Symbols Safety Instructions and Regulations
2.3 Other Indication Symbols
The following other indication symbols are used on EDS500 series devices:
Symbol Type Meaning
Conformity The CE mark on a product indicates that the manufacturer or
importer of that product affirms its compliance with the relevant EU
legislation and the product may be sold anywhere in the European
Economic Area (EEA).
Conformity According to directive 2012/19/EU of the European Parliament and
of the Council of 4 July 2012 on waste electrical and electronic
equipment (WEEE), used electrical and electronics devices shall
no more be disposed to unsorted waste. The symbol of the waste
bin on wheels shows the necessity to separately collect electronics
waste. Therefore, this equipment should be disposed through the
designated systems of waste sorting if it is no longer used.
Table 3: Other indication symbols on EDS500 series devices
2.4 Applicable Standards and Directives for
Installation and Operation
The devices of the Hitachi Energy EDS500 series are produced in compliance with the relevant
regulations and standards.
According to IEC 60664-1 (DIN VDE 0110-1) Insulation coordination for equipment within low-
voltage systems – Part 1: Principles, requirements and tests, classification of the EDS500 series is
as follows:
•Pollution degree 2
Only non-conductive pollution occurs except that occasionally a temporary conductivity caused
by condensation is to be expected.
•Overvoltage category II
in accordance with the definitions in IEC 60364-4-44.
The owner of the devices and components is responsible to ensure that they are installed safely
and in compliance with the applicable local laws and regulations.
Standard Explanation
DIN VDE 0100 Erection of power installations with nominal voltages up to
1000 V AC or 1500 V DC.
EN 50274 (DIN VDE 0660-514) Low-voltage switchgear and controlgear assemblies.
Protection against electric shock - Protection against uninten-
tional direct contact with hazardous live parts.
IEC/EN 60204 (DIN VDE 0113) Safety of machinery; Electrical equipment of machines.
Part 1: General requirements
EN 50178 (DIN VDE 0160) Electronic equipment for use in electrical power installations and
their assembly into electrical power installations.
EN 50310 (DIN VDE
0800-2-310)
Application of equipotential bonding and earthing in buildings
with information technology equipment.
Table 4: Standards
8 1KGT151042 V001 1

Safety Instructions and Regulations Qualified Personnel
Mounting into cabinet is mandatory due to fire protection.
If devices of the EDS500 series are coupled with or supplied through power-frequency voltage
networks of overvoltage category III, take suitable protective action, such as installing surge voltage
protectors, to guarantee that overvoltage category II (1500 V max. transient) according to DIN VDE
0110 applies at the terminal connectors.
ADVICE
The EDS500 series devices are protection class II devices with
functional earthing.
Correct functional earthing is accomplished by snapping the
switch on the properly earthed DIN-rail (making contact to
backside functional earth contacts) and additionally connecting all
terminals which are named SHIELD to an earthing terminal on the
DIN-rail.
WARNING
Functional earthing must be done properly in order for the
overvoltage protection of the switch to work properly.
WARNING
For detailed installation instructions of the individual devices refer to the respective operating
instructions.
2.5 Qualified Personnel
DANGER
The connectors or terminals of some components of the EDS500 series may conduct dangerous
contact voltages.
Touching parts with live current will result in death or serious injury.
Installation, commissioning and maintenance of such systems must be carried out only by
qualified personnel with knowledge of the following information:
•Dealing with dangerous voltages
•Application of the relevant specifications, standards, and regulations, in particular of the
applicable EN (VDE) standards and occupational safety regulations aiming at the prevention
of accidents
2.6 Intended Use
The EDS500 series was developed, manufactured, tested, and documented observing the relevant
standards.
1KGT151042 V001 1 9

Warnings and cautions Safety Instructions and Regulations
If the applicable regulations for installation, commissioning, and maintenance are observed, the
product does not pose a danger to health, life, safety, or property under normal circumstances.
"Intended use of the product" means that the components of the EDS500 series are operated and
maintained exclusively in the form described in the product documentation. In particular, intended
use of the product requires observing the technical specifications of the process circuits and power
supply.
Hitachi Energy does not accept any responsibility whatsoever for injury or damage resulting from
improper use or unauthorized repair.
2.7 Warnings and cautions
DANGER
Interrupt the power supply before mounting or dismounting the device.
WARNING
An easy to access manual interrupter has to be installed into the power feed of the modem to be
able to disconnect the modem from the power supply in the case of an emergency.
WARNING
The EDS500 devices are intended only for use in restricted access area without access for
children or ordinary persons. For fire protection the devices have to be mounted into suitable
cubicles which are certified for the function of a fire protection housing.
WARNING
The device shall be powered off while accessing any of the power or alarm relay connectors.
Any other connectors (e.g. RS-232 or 4-wire/2-wire communication port/X3) are hot-pluggable
while the device is operating.
WARNING
No plug shall be freely accessible in normal operation due to safety reasons.
WARNING
Connect the device only if you can make sure that the specifications are kept.
ADVICE
Electronic components are sensitive for electrostatic discharge.
To prevent damages to your devices deviate possibly occurring static charges before touching
the module or components. We recommend to wear a conductive grounded wrist tape.
10 1KGT151042 V001 1

System concept Device family
3 System concept
3.1 Device family
The 500FSD series out of the EDS500 product family is a product series of ruggedized FSK-
based analog modems. It is especially designed to support critical infrastructure companies by
enabling communication for traditional serial devices like RTUs or IEDs. The 500FSD product series
interoperates with any standard FSK-based technology but is also capable to achieve higher data
rates by enhanced technology. The devices are used in a variety of markets which require the need
for cost-efficient reliable communication.
The following table shows the technical features of the FSK modems.
Feature 500FSD10 500FSD11 500FSD20
Transmission standard CCITT V.23 n/a CCITT
Transmission speed Up to 1,200 bps Up to 9,600 bps Up to 2,400 bps (1
channel)
Transmission modes Point-to-point communication
Multipoint star configuration
Operation modes 2-wire transmission
4-wire transmission
Full-duplex transmission
Half-duplex transmission
No. of channels 1 1 32 @ 50 bps
Power supply 24…60 V DC
Comments Can be used in combi-
nation with 23WT23
Can be used in combi-
nation with 23WT24
Can be used in combi-
nation with 23WT25
Table 5: Technical features: FSK modems
For EDS500 analog modems portfolio details see EDS500 Brochure 500FSD Analog Modems
(1KGT151032).
1KGT151042 V001 1 11

Functions overview System concept
3.2 Functions overview
3.2.1 Applications
The wide area of applications enable the EDS500 series - FSK modems to be used in any cost-
efficient environment using serial communication. Its simplicity and robustness provide ease of
installation as well as long product lifetime.
Analog serial modems of the EDS500 series allow to implement real physical two-or-four wire
shared bus topologies (all modems connect to the same cable) with ranges of up to 30 km.
The compact case without moveable parts for easy installation on DIN rail, a wide range power
supply (24…60 V) with small power consumption, extended temperature range and integrated
overvoltage protection complete the concept of the EDS500 series - FSK modems.
3.2.2 Connectivity
The EDS500 series of analog modems consists of multiple products allowing to establish wide
area connections via customer-owned copper cables. The devices provide a serial interface (V.24 /
RS-232) and a combined two-/four-wire line interface.
A variety of communication schemes are supported to provide connectivity to clients and other
communication devices:
•24 channels each 50 bps (ITU-T/CCITT R.35)
•12 channels each 100 bps (ITU-T/CCITT R.37)
•6 channels each 200 bps (ITU-T/CCITT R.38a)
•2 channels each 600 bps
•1 channel 1200 bps (ITU-T/CCITT V.23)
•1 channel 2400 bps
•1 channel 9600 bps
500FSD devices can be used in point-to-point (end-to-end) and multidrop (partyline) applications.
The transmission is transparent, supporting byte oriented (e.g. IEC 60870-5-101, IEC60870-5-103,
IEC 62056-21, RP570/71, DNP, Modbus, SEAB 1F, TG809 or SINAUT) as well as pulse based
(e.g. quantity pulse or relay contacts) transmission procedures. The specified bit rate defines the
maximum bit rate allowed, lower bit rates are always possible.
3.2.3 Modulation
EDS500 series modems rely on FSK based modulation technology with adjustable receiver
amplification and transmitter predistortion to compensate line characteristics. 500FSD20 is able to
report bad line quality via an isolated alarm relay.
3.2.4 Multi-channel
500FSD10 and 500FSD11 are cost-efficient modems allowing to communicate on a 1200 bps
V.23 or 9600 bps channel on one wire pair. The device 500FSD20 is in addition able to operate in
multi-channel environments allowing multiple separate data streams on the same cable. Using this
frequency multiplexing based technology it is possible to separate and run multiple services on a
single two- or four-wire cable. This can also be used to separate the transmit and receive channels
to allow full-duplex on two-wire installations.
12 1KGT151042 V001 1

System concept Functions overview
3.2.5 RTU560 integration
All products of the EDS500 series - FSK modems are also available as plugin modules for RTU560.
3.3 Network structures
Devices of the EDS500 series allow you to realize a wide variation of network structures like point-
to-point connections, lines, stars and branches. The following small examples should give an
overview of possible network variants.
3.3.1 Line topology
A line topology usually follows the physical path of an infrastructure installation, e.g. an energy line
or pipeline. 500FSD analog modems realize a line topology by physically connecting all modems to
the same copper cable via two or four wires. In this so called partyline or multidrop configuration the
application protocol provides a polling scheme to query and control the different stations.
500FSDxx
Control center Staon 1 Staon 2 Staon 3
500FSDxx 500FSDxx 500FSDxx
Cu
RTU/IED RTU/IED RTU/IED
Figure 1: Line topology
3.3.2 Point-to-point topology
Point-to-point connections can be used if possible by the physical environment or if high throughput
is required. The point-to-point connection can utilize either two or four wires. In four wire mode the
connection can be operated full-duplex allowing symmetric protocols to be used (e.g. symmetric
IEC 60870-5-101). If two wires are used, full-duplex operation can be achieved by using 500FSD20
and frequency-separated channels in transmit and receive direction.
1KGT151042 V001 1 13

Network structures System concept
500FSDxx
Control center Staon
500FSDxx
Cu
RTU/IED
Figure 2: Point-to-point topology
3.3.3 Star topology
The star topology is used in centralized applications with a central connection point. The different
connections for the stations are bundled in the control center and are attached to a single 500FSD
analog modem. For star topologies two- or four-wire cabling is possible.
Control center
Cu
500FSDxx
Staon 1
500FSDxx
RTU/IED
Staon 3
500FSDxx
RTU/IED
Staon 2
500FSDxx
RTU/IED
Staon 4
500FSDxx
RTU/IED
Cu
Cu
Cu
Figure 3: Star topology
14 1KGT151042 V001 1

System concept Network structures
3.3.4 Multidrop star topology
By combining star and line topology a multidrop star can also be realized. It connects multiple
transmission lines to a central point like a control center.
Control center
Cu
500FSDxx
Staon 1
500FSDxx
RTU/IED
Staon 3
500FSDxx
RTU/IED
Staon 2.1
RTU/IED
Staon 4.1
500FSDxx
RTU/IED
Cu
Cu
Cu
Staon 2.2
500FSDxx
RTU/IED
Staon 4.2
500FSDxx
RTU/IED
Staon 4.3
500FSDxx
RTU/IED
500FSDxx
Figure 4: Multidrop star topology
1KGT151042 V001 1 15

Network structures System concept
16 1KGT151042 V001 1

Device description Compact device 500FSD10
4 Device description
4.1 Compact device 500FSD10
4.1.1 Overview 500FSD10
RxD DCD CTS
Modem
TxD RTS
NF2a
NF2b
NF1a
NF1b
+
(M1)
(M2)
(M5)
(D2)
GND
(D1)
(S2)
(S1.2)
DSR
CTS
DCD
RxD
TxD
RTS
DTR
(E2)
Figure 5: Block diagramm 500FSD10
The 500FSD10 modem is a CCITT V.23 modem for snap-in DIN-rail mounting. V.23 operates with
the frequency shift keying method (FSK). The modem can operate in two- and four-wire connection.
The mode of operation is set by means of a twelve-fold DIP-switch.
4.1.2 Front view and connectors 500FSD10
Figure 6: Front view of the FSK
modem 500FSD10 Figure 7: Connector
plan of the FSK
modem 500FSD10
Connectors Type
X1 "Power Connector", page 22
X2 "Serial interface to DTE", page 23
X3 "Interface to transmission line", page 23
4.1.3 Device data 500FSD10
The interface data can be found in Chapter 4.5, "Connections".
1KGT151042 V001 1 17

Compact device 500FSD11 Device description
General Data
Type of modulation Frequency shift keying (FSK) with carrier switch-
off for multi-drop network
Type of communication Point-to-point or multi-drop network
Operation modes Full- or half-duplex via four-wire links
Half-duplex via two-wire links
Channel assignment CCITT V.23 1200 baud
Mechanical layout
Dimensions
Housing type Plastic housing
Mounting DIN rail mounting (EN 50022 TS35: 35 mm x 15
mm or 35 mm x 7.5 mm)
Cooling thermal convection (no moving parts)
Enclosure protection class IP20
Power supply input
Operating voltage 24 ... 60 V DC -15%...+20%
Power consumption (typical) 2 W
Current demand (peak) 140 mA
Ordering information
500FSD10 R0001 1KGT019201R0001
4.2 Compact device 500FSD11
4.2.1 Overview 500FSD11
RxD DCD CTS
Modem
TxD RTS
NF2a
NF2b
NF1a
NF1b
+
(M1)
(M2)
(M5)
(D2)
GND
(D1)
(S2)
(S1.2)
DSR
CTS
DCD
RxD
TxD
RTS
DTR
(E2)
Figure 8: Block diagramm 500FSD11
The 500FSD11 modem is a proprietary modem at a data rate of 9600 bps for snap-in DIN-rail
mounting. The modem can operate in two- and four-wire connection. The mode of operation is set
by means of a twelve-fold DIP-switch.
18 1KGT151042 V001 1

Device description Compact device 500FSD11
4.2.2 Front view and connectors 500FSD11
Figure 9: Front view of the FSK
modem 500FSD11 Figure 10:
Connector plan of
the FSK modem
500FSD11
Connectors Type
X1 "Power Connector", page 22
X2 "Serial interface to DTE", page 23
X3 "Interface to transmission line", page 23
4.2.3 Device data 500FSD11
The interface data can be found in Chapter 4.5, "Connections".
General Data
Type of modulation Frequency shift keying (FSK) with carrier switch-
off for multi-drop network
Type of communication Point-to-point or multi-drop network
Operation modes Full- or half-duplex via four-wire links
Half-duplex via two-wire links
Channel assignment private definition
Mechanical layout
Dimensions
Housing type Plastic housing
Mounting DIN rail mounting (EN 50022 TS35: 35 mm x 15
mm or 35 mm x 7.5 mm)
Cooling thermal convection (no moving parts)
Enclosure protection class IP20
1KGT151042 V001 1 19

Compact device 500FSD20 Device description
Power supply input
Operating voltage 24 ... 60 V DC -15%...+20%
Power consumption (typical) 2.4 W
Current demand (peak) 160 mA
Ordering information
500FSD11 R0001 1KGT019301R0001
4.3 Compact device 500FSD20
4.3.1 Overview 500FSD20
RxD DCD CTS
Modem
TxD RTS
SQL
EQZ
K1
K1
NF2a
NF2b
NF1a
NF1b
+
(M1)
(M2)
(M5)
(D2)
GND
(D1)
(S2)
AK1
MK1
RK1
(S1.2)
DSR
CTS
DCD
RxD
TxD
RTS
DTR
(E2)
Figure 11: Block diagramm 500FSD20
The 500FSD20 modem is a voice-frequency telegraphy unit (VFT unit) which operates according
to the principle of binary frequency shift keying. The modem can operate in two- and four-wire
connection. The mode of operation is set by a command line interface (CLI).
4.3.2 Front view and connectors 500FSD20
Figure 12: Front view of the FSK
modem 500FSD20 Figure 13:
Connector plan of
the FSK modem
500FSD20
20 1KGT151042 V001 1