Siemens SICAM User Manual

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Preface

Open Source Software

Table of Contents

SICAM Feeder Condition Monitor

V03.30

Manual

Delivery

Introduction

Hardware Components and Drawings

Device Functions

Technical Data

Type Testing

Connection Diagrams

Parameterization

Modbus Registers

1 2 3 4 5 6 7

E50417-H8940-C580-A4

Glossary

Index

NOTE

For your own safety, observe the warnings and safety instructions contained in this document, if available.

Disclaimer of Liability

This document has been subjected to rigorous technical review before being published. It is revised at regular intervals, and any modifications and amendments are included in the subsequent issues. The content of this document has been compiled for information purposes only. Although Siemens AG has made best efforts to keep the document as precise and up-to-date as possible, Siemens AG shall not assume any liability for defects and damage which result through use of the information contained herein.

This content does not form part of a contract or of business relations; nor does it change these. All obligations of Siemens AG are stated in the relevant contractual agreements.

Siemens AG reserves the right to revise this document from time to time.

Document version: E50417-H8940-C580-A4.01 Edition: 03.2019 Version of the product described: V03.30

document, or utilization and communication of the content are not permitted, unless authorized in writing. All rights, including rights created by patent grant or registration of a utility model or a design, are reserved.

Trademarks

SIPROTEC™, DIGSI™, SIGRA™, SIGUARD™, SAFIR™, and SICAM™ are trademarks of Siemens AG. Any unauthorized use is illegal. All other designations in this document can be trademarks whose use by third parties for their own purposes can infringe the rights of the owner.

Preface

Purpose of the Manual

This manual describes the application, functions, installation, and operation of the SICAM Feeder Condition Monitor (FCM) 6MD232xx.

Target Audience

Protection system engineers, commissioning engineers, persons entrusted with the setting, testing and maintenance of automation, selective protection and control equipment, and operational crew in electrical installations and power plants.

Scope

This manual applies to SICAM Feeder Condition Monitor (FCM) 6MD232xx; firmware version V03.30.

Indication of Conformity

This product complies with the directive of the Council of the European Communities on the harmonization of the laws of the Member States relating to electromagnetic compatibility (EMC Directive 2014/30/EU) and concerning electrical equipment for use within specified voltage limits (Low Voltage Directive 2014/35/EU) as well as restriction on usage of hazardous substances in electrical and electronic equipment (RoHS Directive 2011/65/EU).

This conformity has been proved by tests performed according to the Council Directive and in accordance with the generic standard IEC/EN 61326-1 (for EMC directive) and with the standards IEC/EN 61010-1 and IEC/EN 61010-2-30 (for Low Voltage Directive) by Siemens AG.

The device is designed and manufactured for application in an industrial environment. RoHS directive 2011/65/EU is met using the standard EN 50581. The product conforms with the international standards of IEC 61326-1.

Standards

IEEE Std C 37.90 and EN 55011 IEC/EN 62271-1: 2007-10 IEC/EN 61243-5: 1997-06

Support

Our Customer Support Center provides a 24-hour service.

Siemens AG Customer Support Center Humboldtstraße 59 90459 Nürnberg Germany

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Preface

Phone: +49 (180) 524-7000 Fax: +49 (180) 524-2471 E-mail: support.energy@siemens.com

Additional Support

For questions about the system, please contact your Siemens sales partner.

Training Courses

Inquiries regarding individual training courses should be addressed to our Training Center:

Siemens AG Siemens Power Academy TD Humboldtstraße 59 90459 Nürnberg Germany

Phone: +49 (911) 433-7415 Fax: +49 (911) 433-7929 E-mail: poweracademy@siemens.com Internet: www.siemens.com/poweracademy

Notes on Safety

This document is not a complete index of all safety measures required for operation of the equipment (module or device). However, it comprises important information that must be followed for personal safety, as well as to avoid material damage. Information is highlighted and illustrated as follows according to the degree of danger:

DANGER

DANGER means that death or severe injury will result if the measures specified are not taken.

WARNING

WARNING means that death or severe injury may result if the measures specified are not taken.

CAUTION

Comply with all instructions, in order to avoid death or severe injuries.

CAUTION means that medium-severe or slight injuries can occur if the specified measures are not taken.

Comply with all instructions, in order to avoid moderate or minor injuries.

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NOTICE

NOTICE means that property damage can result if the measures specified are not taken.

Comply with all instructions, in order to avoid property damage.

NOTE

Important information about the product, product handling or a certain section of the documentation which must be given particular attention.

Qualified Electrical Engineering Personnel

Only qualified electrical engineering personnel may commission and operate the equipment (module, device) described in this document. Qualified electrical engineering personnel in the sense of this manual are people who can demonstrate technical qualifications as electrical technicians. These persons may commission, isolate, ground and label devices, systems and circuits according to the standards of safety engineering.

Proper Use

The equipment (device, module) may be used only for such applications as set out in the catalogs and the technical description, and only in combination with third-party equipment recommended and approved by Siemens.

Problem-free and safe operation of the product depends on the following:

Preface

Proper transport

•

Proper storage, setup and installation

•

Proper operation and maintenance

•

When electrical equipment is operated, hazardous voltages are inevitably present in certain parts. If proper action is not taken, death, severe injury or property damage can result:

The equipment must be grounded at the grounding terminal before any connections are made.

•

All circuit components connected to the power supply may be subject to dangerous voltage.

•

Hazardous voltages may be present in equipment even after the supply voltage has been disconnected

•

(capacitors can still be charged).

Operation of equipment with exposed current-transformer circuits is prohibited. Before disconnecting the

•

equipment, ensure that the current-transformer circuits are short-circuited.

The limiting values stated in the document must not be exceeded. This must also be considered during

•

testing and commissioning.

Used Symbols on Device

Symbol Description

No.

1 Direct current, IEC 60417-5031

2 Alternating current, IEC 60417-5032

3 Direct and alternating current, IEC 60417-5033

4 Earth (ground) terminal, IEC 60417-5017

5 Protective conductor terminal, IEC 60417-5019

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Preface

No. Symbol Description

6 Caution, risk of electric shock

7 Caution, risk of danger, ISO 7000-0434

8 Protective Insulation, IEC 60417-5172, Safety Class II devices

9 Guideline 2002/96/EC for electrical and electronic devices

10 Guideline for the Eurasian Market

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Open Source Software

The product contains, among other things, Open Source Software developed by third parties. The Open Source Software used in the product and the license agreements concerning this software can be found in the Readme_OSS. These Open Source Software files are protected by copyright. Your compliance with those license conditions will entitle you to use the Open Source Software as foreseen in the relevant license. In the event of conflicts between Siemens license conditions and the Open Source Software license conditions, the Open Source Software conditions shall prevail with respect to the Open Source Software portions of the software. The Open Source Software is licensed royalty-free. Insofar as the applicable Open Source Software License Conditions provide for it you can order the source code of the Open Source Software from your Siemens sales contact - against payment of the shipping and handling charges - for a period of at least 3 years since purchase of the Product. We are liable for the Product including the Open Source Software contained in it pursuant to the license conditions applicable to the Product. Any liability for the Open Source Software beyond the program flow intended for the Product is explicitly excluded. Furthermore any liability for defects resulting from modifications to the Open Source Software by you or third parties is excluded. We do not provide any technical support for the Product if it has been modified.

SICAM, Feeder Condition Monitor, Manual E50417-H8940-C580-A4, Edition 03.2019

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Preface..........................................................................................................................................................3

Open Source Software..................................................................................................................................7

1 Delivery.......................................................................................................................................................11

1.1 Delivery............................................................................................................................ 12

2 Introduction................................................................................................................................................13

2.1 Overview ......................................................................................................................... 14

2.2 Environmental Protection Hints......................................................................................... 20

3 Hardware Components and Drawings........................................................................................................21

3.1 Hardware Components..................................................................................................... 22

3.2 Terminal Diagram............................................................................................................. 23

3.3 Dimensional Drawings ......................................................................................................25

4 Device Functions........................................................................................................................................ 29

4.1 Description....................................................................................................................... 30

4.1.1 Measurements and Derived Values.............................................................................. 30

4.1.2 Fault Detection............................................................................................................30

4.1.3 Fault-Reset Mechanism................................................................................................32

4.1.4 Enhanced Fault Validation and Fault-Reset Function.....................................................33

4.1.5 Trip Time DMT and IDMT .............................................................................................36

4.1.6 Ground-Fault Parameter Active Group Setting.............................................................. 37

4.1.7 Fault Indication........................................................................................................... 37

4.1.8 DO Configuration........................................................................................................ 38

4.1.9 Operating Modes.........................................................................................................38

4.1.10 Correction Factors for LoPo VT and LoPo CT (IEC 61869-10, IEC 61869-11)................... 38

4.1.11 Power-Flow Direction Reversal .................................................................................... 39

4.1.12 P,Q Sign...................................................................................................................... 39

4.1.13 3-Phase Angle Calculations.......................................................................................... 40

4.1.14 Phase-Sequence Monitoring........................................................................................ 40

4.1.15 Determination of Fault Direction..................................................................................41

4.1.16 Direction Determination of Phase Elements..................................................................42

4.1.17 Directional Ground Fault (Compensated/Resonant-Grounded) ..................................... 43

4.1.18 Directional Ground Fault (in Isolated Electrical Power Systems).................................... 43

4.1.19 Ground-Fault Direction for Solidly Grounded System.................................................... 44

4.1.20 Ground-Fault Detection with Cos φ/Sin φ Measurement............................................... 45

4.1.21 Determination of a Ground Fault with the Pulse-Location Detection Mechanism........... 46

4.1.22 Determination of the Ground-Fault Phase.................................................................... 49

4.1.23 Determination of Repeated Phase Faults with Automatic Reclosing ..............................49

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Table of Contents

4.1.24 Intermittent Ground Fault............................................................................................49

4.1.25 Inrush-Current Detection/Blocking ...............................................................................50

4.1.26 Primary Current Settings..............................................................................................51

4.1.27 Ground-Current Calculation......................................................................................... 51

4.1.28 Network Voltage Ratio................................................................................................. 52

4.1.29 Voltage Measurements with Sensors as per IEC 60044-7, IEC 61869-11 and with

Conventional Voltage Sensors......................................................................................52

4.1.30 Low-Voltage Measurement.......................................................................................... 53

4.1.31 Determination of Medium Voltage via Low-Voltage Measurements.............................. 53

4.1.32 Voltage Measurement via Integrated Voltage-Detecting Systems..................................54

4.1.33 Energy Measurement...................................................................................................55

4.1.34 RTC Synchronization....................................................................................................55

4.1.35 Remote Firmware Updates...........................................................................................56

4.1.36 Password Menu Access................................................................................................ 56

4.1.37 Device Alerts............................................................................................................... 57

4.1.38 Archive Logging.......................................................................................................... 58

4.1.39 Battery Freshness Mode...............................................................................................59

5 Technical Data............................................................................................................................................ 61

5.1 Device Technical Data....................................................................................................... 62

6 Type Testing............................................................................................................................................... 65

6.1 Type Testing..................................................................................................................... 66

7 Connection Diagrams................................................................................................................................. 69

7.1 Connection Diagrams........................................................................................................70

7.2 Installing the Device..........................................................................................................73

7.3 Sensor Connections.......................................................................................................... 74

7.4 Modbus Connection of SICAM FCM with RTU..................................................................... 78

A Parameterization........................................................................................................................................ 81

A.1 Parameterization...............................................................................................................82

A.2 Parameterizing the User Interface......................................................................................83

A.3 Editing the Device Settings................................................................................................91

B Modbus Registers....................................................................................................................................... 93

B.1 Modbus Registers..............................................................................................................94

B.2 Implementation of the Modbus Protocol ...........................................................................95

B.3 Bit-Type Data.................................................................................................................. 107

B.4 Register-Type Data – Holding Registers............................................................................110

B.5 Register-Type Data – Input Registers................................................................................131

B.6 Register-Type Data – Analog Input Registers.................................................................... 144

B.7 Register-Type Data - Events............................................................................................. 150

B.8 Register-Type Data – Trailing Pointers..............................................................................153

B.9 Self-Test Mode................................................................................................................ 156

Glossary.................................................................................................................................................... 171

Index.........................................................................................................................................................173

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Delivery

1.1 Delivery 12

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Delivery

1.1 Delivery

1.1

Delivery Note

Contents of Delivery

Delivery

The SICAM FCM device is delivered in a cardboard box containing the Siemens logo.

1 SICAM FCM device

•

1 document with safety instructions

•

1 ground wire

•

WARNING

Danger of explosion of the battery.

Noncompliance with the safety instructions means that death, severe injuries, or considerable material damages can occur.

Do not throw the SICAM FCM device containing a battery into a fire.

NOTE

SICAM FCM with 1 contained lithium metal cell (0.6 g lithium content) meets the preconditions of Special Provision 188 of the UN Recommendations on the Transport of Dangerous Goods, 17th revised edition and is classified according to:

ADR/RID/ADN/IMDG-Code: UN 3091 lithium metal batteries contained in equipment, 9, preconditions

•

of SP 188

ICAO-TI/IATA-DGR: UN 3091 lithium metal batteries contained in equipment, 9, preconditions of

•

Section II PI 970

NOTE

Do not transport the SICAM FCM in battery-activated mode. Before transportation, ensure that the SICAM FCM is in Battery Freshness Mode (BFM).

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Introduction

2.1 Overview 14

2.2 Environmental Protection Hints 20

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Introduction

2.1 Overview

2.1

Overview

SICAM Feeder Condition Monitor (FCM) is an Intelligent Electronic Device (IED) used for detecting and indicating short circuits or ground faults with and without directional information. SICAM FCM accurately monitors, measures, and displays operational measured values and performs the condition monitoring task in a medium-voltage distribution system. SICAM FCM is typically used in the medium-voltage and low-voltage secondary substation that ranges from 0.4 kV to 36 kV.

SICAM FCM measures the RMS value for alternating voltage, alternating current, and power frequency. SICAM FCM calculates the active power (P), reactive power (Q), apparent power (S), power factor (cos φ), phase angle, energy, and other relevant values.

SICAM FCM consists of the following hardware interfaces:

3 current inputs

•

3 voltage inputs

•

1 digital input

•

2 digital outputs

•

1 RS 485 interface (Modbus RTU)

•

1 auxiliary power supply

•

[dw_fcm_block_diagram2321, 3, en_US]

Figure 2-1 SICAM FCM Block Diagram for MLFB 6MD2321-1AA00-1AA0

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[dw_fcm_block_diagram2322, 2, en_US]

Figure 2-2 SICAM FCM Block Diagram for MLFB 6MD2322-1AA00-1AA0

Introduction

2.1 Overview

Applications

SICAM FCM is used:

As a directional and non-directional short circuit and ground-fault detector suitable for solid, isolated, and

•

compensated networks in medium-voltage and low-voltage distribution systems

As a simple power quality meter and energy measurements in various applications

•

Flush Mounting

SICAM FCM can be flush-mounted in the panel and operated inside an enclosed dry room. To mount SICAM FCM in the panel, proceed as follows:

Cut a rectangle in the Ring-Main Unit (RMU) panel measuring 92.0 mm + 0.8 mm × 45.0 + 0.8 mm (W ×

•

H).

Carry out all the required internal wiring connections.

•

For more information about terminal diagrams, refer to 3.2 Terminal Diagram.

Flush SICAM FCM into the panel and lock it with the clamps.

•

For more information about installation, refer to 7.2 Installing the Device.

•

Device Ordering Information

Use the following ordering information to order SICAM FCM and other related accessories.

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Introduction

2.1 Overview

Table 2-1 SICAM FCM and Accessories Ordering Information

Description Order Number

SICAM FCM

Voltage measurements: LoPo VTs according to IEC 60044-7, IEC 61869-11,

•

conventional VT and 230 V Current measurements: LoPo CTs according to IEC 60044-8, IEC 61869-10

•

Fault indicator with directional information and measurements of V, I, f, P,

•

Q, S, cos φ, and power-flow direction Panel mounted

•

Dimensions in mm: 96 × 48 × 109.5

•

1 digital input

•

2 digital outputs

•

Modbus RTU

•

SICAM FCM

For voltage measurement with LRM voltage-detecting systems according

•

to IEC 61243-5 Current measurements: LoPo CTs according to IEC 60044-8, IEC 61869-10

•

Fault indicator with directional information and measurements of V, I, f, P,

•

Q, S, cos φ, and power-flow direction Panel mounted unit with display

•

Dimensions in mm: 96 × 48 × 109.5

•

1 digital input

•

2 digital outputs

•

Modbus RTU

•

The mandatory interface cable (6MD2322-0AA80-0AB3) for linkage to the

•

Voltage-Detection System (VDS) has to be ordered separately.

Voltage-Detection System (VDS) Interface Cable

4-wire connection lead with integrated protection circuit to connect

•

SICAM FCM 6MD2322-1AA00-1AA0/CC with the LRM voltage detection system

1 ground input

•

Length: 0.3 m

•

Mandatory accessory for each SICAM FCM 6MD2322-1AA00-1AA0 with

•

hardware revision number “CC” or higher

Adapter 1 A to low power IEC 60044-8

3 inputs, transformer ratio 225 mV@1 A

•

Accuracy class: 1

•

Thermal overload: 100 A for 1 s

•

Coil diameter: 5.8 mm

•

Adapter 5 A to low power IEC 60044-8

3 inputs, transformer ratio 225 mV@5 A

•

Accuracy class: 3

•

Thermal overload: 100 A for 1 s

•

Coil diameter: 5.8 mm

•

6MD2321-1AA00-1AA0/XX

6MD2322-1AA00-1AA0/XX

6MD2322-0AA80-0AB3

6MD2320-0AA10-1AA0

6MD2320-0AA20-1AA0

XX represents the hardware revision number

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Description Order Number

Phase current sensor – split core

Ratio: 225 mV@300 A, IEC 61869-10

•

Accuracy class: 0.5/1 extension 200 %, 5P10

•

Connection cable: 2.0 m, open end

•

Internal diameter: 65 mm

•

Phase current sensor – closed ring core

Ratio: 225 mV@700 A, IEC 60044-8

•

Accuracy class: 0.5, 5P10

•

Connection cable: 3.5 m, open end

•

Internal diameter: 82 mm

•

GOST certificate

•

Core balance current sensor – split core

Ratio: 225 mV@60 A, IEC 61869-10

•

Accuracy class: 1/3

•

Connection cable: 2.0 m

•

Window diameter: 160 mm

•

Core balance current sensor – split core

Ratio: 225 mV@60 A, IEC 60044-8

•

Accuracy class: 1

•

Connection cable: 3.5 m

•

Window diameter: 120 mm

•

GOST certificate

•

Voltage Sensor 10 kV

10 kV/√3 : 3.25/√3

•

Accuracy class: 1

•

IEC 60044-7 for symmetrical T connectors with C cone for cables: Nexans

•

(K) 440TB/ Cellpack CTS-S/Südkabel SEHDT13 and SEHDT23 Voltage factor: 1.2 V

•

Voltage factor: 1.9 VN for maximum of 8 hours

•

Voltage Sensor 10 kV

10 kV/√3 : 3.25/√3

•

Accuracy class: 1

•

IEC 60044-7 for asymmetric T connectors of nkt cables type CB-24, CC-24

•

and Raychem RSTI-58xx/RSTI-CC-58xx Voltage factor: 1.2 V

•

Voltage factor: 1.9 VN for maximum of 8 hours

•

Voltage Sensor 10 kV

10 kV/√3 : 3.25/√3

•

Accuracy class: 0.5

•

IEC 60044-7 for asymmetric T connectors of nkt cables type CB-24

•

Voltage factor: 1.2 V

•

Voltage factor: 1.9 VN for maximum of 8 hours, GOST certificate

•

Introduction

2.1 Overview

6MD2320-0GA00-1AA0

6MD2320-0JA00-0BA1

6MD2320-0AF00-1AA0

6MD2320-0AF00-1AA1

6MD2320-0AA04-1AA0

6MD2320-0AA04-1AB0

6MD2320-0AA04-0AB1

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Introduction

2.1 Overview

Description Order Number

Voltage Sensor 20 kV

20 kV/√3 : 3.25/√3

•

Accuracy class: 0.5/1

•

IEC 61869-11 for symmetric T connectors with C cone for cables: Nexans

•

(K) 440TB/ Cellpack CTS-S/Südkabel SEHDT13 and SEHDT23 Voltage factor: 1.2 V

•

Voltage factor: 1.9 VN for maximum of 8 hours

•

Voltage Sensor 20 kV

20 kV/√3 : 3.25/√3

•

Accuracy class: 1

•

IEC 61869-11 for asymmetric T connectors of nkt cables type CB-24, CC-24

•

and Raychem RSTI-58xx/RSTI-CC-58xx Voltage factor: 1.2 V

•

Voltage factor: 1.9 VN for maximum of 8 hours

•

Typical Ordering Combinations MLFB Number Use Case

SICAM FCM For resistive voltage

dividers, conventional VTs, and 230 V.

Fault indicator with directional information and measurements of V, I, f, P, Q, S, cos φ, power-flow direction, 2 digital outputs

SICAM FCM For voltage detecting

systems Fault indicator with direc-

tional information and measurements of V, I, f, P, Q, S, cos φ, and powerflow direction, 2 digital outputs

1 A adaptor 3 inputs @225mV low-

power signal

5 A adaptor 3 inputs @225mV low-

power signal

Phase-current sensor

Depending on requirements

LoPo sensors available

6MD2321-1AA00

-1AA0/XX

6MD2322-1AA00

-1AA0/XX

6MD2320-0AA10

-1AA0 6MD2320-0AA20

-1AA0 Refer to Table 2-1 – 3 x 2 x – –

1 x 1 x 1 x 1 x –

1 x 1 x 1 x 1 x

– – – 1 x –

Neutralpoint treatment: Solid/lowresistant

6MD2320-0AA07-1AA0

6MD2320-0AA07-1AB0

Neutralpoint treatment: Isolated/ compensated

Conventional

1 A/ 5 A CTs available

Connecting cable

1 x

In order to set up SICAM FCM (MLFB: 6MD2322-1AA00-1AA0/CC and above) with voltage-detection system, an appropriate connecting cable (MLFB: 6MD2322-0AA80-0AB3) must be used.

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Typical Ordering Combinations MLFB Number Use Case

LoPo sensors available

Core balance current sensor

Voltage sensor

Depending on requirements

For example, GOST certificate

Depending on voltage level and form factor

NOTE

The device with MLFB number 6MD2321-1AA00-1AA0/DD and above must be loaded with firmware V03.XX only.

The device with MLFB number 6MD2321-1AA00-1AA0/CC must be loaded with firmware V02.XX only.

Refer to Table 2-1 – –

Refer to Table 2-1 –

Neutralpoint treatment: Solid/lowresistant

(3 x)

Neutralpoint treatment: Isolated/ compensated

1 x

(3 x)

2.1 Overview

Conventional

1 A/ 5 A CTs available

– –

Introduction

Connecting cable

Accessories

NOTE

The device with MLFB number 6MD2322-1AA00-1AA0/CC and above must be loaded with firmware V03.XX only.

The device with MLFB number 6MD2322-1AA00-1AA0/BB must be loaded with firmware V02.XX only.

You can download the current version of the SICAM FCM manual from Siemens Powerquality.

The ground current can also be calculated in isolated/compensated electrical power systems. Consider information regarding accuracy.

Optional for measuring purpose or for directional information

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Introduction

2.2 Environmental Protection Hints

2.2

Disposal of Old Equipment and Batteries (Applicable only for European Union and Countries with a Recycling System)

Disposal of Mobile Storage Devices (e.g. USB Sticks and Memory Cards)

Environmental Protection Hints

The disposal of our products and possible recycling of their components after decommissioning has to be carried out by an accredited recycling company, or the products/components must be taken to applicable collection points. Such disposal activities must comply with all local laws, guidelines and environmental specifications of the country in which the disposal is done. For the European Union the sustainable disposal of electronic scrap is defined in the respective regulation for "waste electrical and electronic equipment" (WEEE).

The crossed-out wheelie bin on the products, packaging and/or accompanying documents means that used electrical and electronic products and batteries must not be mixed with normal household waste.

According to national legislation, penalties may be charged for incorrect disposal of such waste.

By disposing of these products correctly you will help to save valuable resources and prevent any potential negative effects on human health and the environment.

NOTE

Our products and batteries must not be disposed of as household waste. For disposing batteries it is necessary to observe the local national/international directives.

When disposing of/transferring mobile storage devices, using the format or delete functions only changes the file management information and does not completely delete the data from your mobile storage device. When disposing of or transferring a mobile storage device, Siemens strongly recommends physically destroying it or completely deleting data from the mobile storage device by using a commercially available computer data erasing software.

REACH/RoHS Declaration

You can find our current REACH/RoHS declarations at:

https://www.siemens.com/global/en/home/products/energy/ecotransparency/ecotransparency-downloads.html

NOTE

You can find more information about activities and programs to protect the climate at the EcoTransparency website:

https://www.siemens.com/global/en/home/products/energy/ecotransparency.html

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Hardware Components and Drawings

3.1 Hardware Components 22

3.2 Terminal Diagram 23

3.3 Dimensional Drawings 25

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Hardware Components and Drawings

3.1 Hardware Components

3.1

Hardware Components

In this manual, SICAM FCM is also referred as device.

Microcontroller

•

The device uses a low-power ARM MCU which includes high-precision 16-bit ADCs.

Battery

•

The device contains a battery with 3.6 V and a capacity of 1.2 Ah.

LCD

•

LCD is used to view real-time values, events, archives, and device parameters.

Keypads

•

The 4 navigation keys are used to navigate through the device menu and to select the desired parameters. The functions of the navigation keys are specific to different menu sections.

LEDs

•

The device consists of 3 LEDs which indicate the status of the process.

– FAULT (Red)

Indicates when any distribution-system fault is detected

– COM (Yellow)

Indicates that the communication is active between Modbus master and the SICAM FCM

– RUN (Green)

Indicates the healthy condition of the device and operating on the auxiliary voltage

Digital Input

•

The device consists of 1 digital input for resetting the fault indication.

Digital Output

•

The device consists of 2 digital outputs for indicating fault conditions.

[dw_sfcmhwbd, 1, en_US]

Figure 3-1 SICAM FCM Hardware Block Diagram

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Hardware Components and Drawings

3.2 Terminal Diagram

3.2

Terminal Diagram

The terminal diagram is located on top of the housing and displays the terminal numbers and terminals.

[dw_sfcmtrml, 2, en_US]

Figure 3-2 Terminal Diagram

Table 3-1 Terminal Specifications

Terminal Number Terminal Name Description

(1) 1 Functional ground (2) N(-)/~ Auxiliary voltage (3) L(+)/~ Auxiliary voltage (4) COM Modbus - Common (5) A/- Modbus - T

(6) B/+ Modbus - R (7) DI1(-) Digital input (-)

(8) DI1(+) Digital input (+) (9) DO2 Digital output 2 (10) DO2 Digital output 2 (11) DO1 Digital output 1 (12) DO1 Digital output 1 (13) I1/A Phase current I

(14) I1N Neutral (15) I2/IN/B Phase current I2 or ground current I (16) I2/INN Neutral (17) I3/C Phase current I (18) I3N Neutral (19) V (20)

(21) V (22)

(23) V (24)

V1N

V2N

V3N

Voltage input V Neutral

V1N, V2N, V3N are internally shorted

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Hardware Components and Drawings

3.2 Terminal Diagram

Terminal Connections

You can connect the device terminals with a wire of cross-section ranging from 0.75 mm2 to 2.5 mm2. Use the following options to connect the terminals:

Spring-cage connection

•

Spring-cage connection is used to connect the upper row of terminals. From terminal 1 to terminal 12.

Screw connection

•

Screw connection is used to connect the bottom row of terminals. From terminal 13 to terminal 24.

The following tables show the technical details of the different connection methods.

Table 3-2 Spring-Cage Connection

Connection Elements Specifications

Connection method Spring cage Conductor size (solid) Conductor size (stranded) Stripping length 8.0 mm AWG (max.) 12.0 AWG (min.) 24.0

4.0 mm

2.5 mm

Table 3-3 Screw Connection

Connection Elements Specifications

Connection method Screw connection Conductor size (solid) Conductor size (stranded)

1.0 mm

Stripping length 8.0 mm AWG (max.) 16.0 AWG (min.) 26.0 Torque 0.5 Nm Screwdriver size 3/32 inch or 2.5 mm

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Hardware Components and Drawings

3.3 Dimensional Drawings

3.3

Rear View

Dimensional Drawings

This chapter shows the dimensional drawings and different views of the device.

[le_sfcmrearview, 1, --_--]

Figure 3-3

(1) Power supply (2) Modbus (3) Digital input (4) Digital output 2 (5) Digital output 1 (6) Voltage input (7) Current input

Rear View with Terminals

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Hardware Components and Drawings

3.3 Dimensional Drawings

Front View

[dw_fcm_front, 1, en_US]

Figure 3-4 Front View

Isometric View

[dw_fcm_iso_view, 1, en_US]

Figure 3-5 Isometric View

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1 A/5 A Adaptor Drawing

Hardware Components and Drawings

3.3 Dimensional Drawings

[le_sfcm1aadap-231015, 1, --_--]

Figure 3-6 1 A/5 A Adaptor

(1) Threaded stud (2) CT adaptor PCB (3) Cable assembly

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Hardware Components and Drawings

3.3 Dimensional Drawings

SICAM FCM with Connecting Cable (only for 6MD2322-1AA00-1AA0)

[le_sfcm-capconncbl, 2, --_--]

Figure 3-7

Connecting Cable of SICAM FCM

(1) SICAM FCM (2) Connecting cable (6MD2322-0AA80-0AB3); necessary for 6MD2322-1AA00-1AA0 (3) Orientation of connecting cable to SICAM FCM voltage-input terminals (4) SICAM FCM voltage-input terminals (5) Connecting cable (L1, L2, L3, ground)

(6) Voltage-detection system

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Device Functions

4.1 Description 30

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Device Functions

4.1 Description

4.1

4.1.1

4.1.2

Description

Measurements and Derived Values

The device measures and calculates the values which are displayed on the HMI/Modbus. The following table shows the measured values and derived values of the device when it is connected to the medium-voltage system and low-voltage system.

Table 4-1 Measurements and Derived Values

Measurements Derived Values

Phase I1, phase I2, phase I Phase I1, ground IN, phase I Phase V1, V2, V Frequency 50 Hz/60 Hz –

– Active power, reactive power, and apparent power – cos φ (power factor) – Phase angle – Active import energy, active export energy, reactive import energy, and

Fault Detection

IN and 2nd harmonic of the phase current I2 and 2nd harmonic of the phase current Phase-to-phase voltages (V12, V23, V31)

reactive export energy

The device determines the fault based on the following criteria:

Overcurrent detection for phase currents (I>, I>>) and ground current (IN>)

•

Ground-current and neutral-point displacement voltage (IN> and VNG>) for resonant-grounded/isolated

•

system

where VNG is an internally calculated value. You can configure the individual time-delay setting for phase current and ground currents.

Table 4-2

tI> Timer for the low-set current threshold I> tI>> Timer for the high-set current threshold I>> tIN> Timer for the ground-current threshold IN>

tVNG> Timer for neutral-point displacement voltage VNG>

NOTE

For fault detection, the highest values of one of the timers are considered.

The device uses the Definite Minimum Time (DMT) or Inverse Definite Minimum Time (IDMT) characteristics for detecting the fault. It identifies the type of the fault and also determines the direction.

The following logic diagram shows the fault indication.

Timer Configuration

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Device Functions

4.1 Description

[lo_sfcm_phase_fault_indication, 2, en_US]

Figure 4-1

[lo_ground_fault_reset, 3, en_US]

Figure 4-2 Logic Diagram for Ground-Fault Detection

For isolated ground: IN (Watt-metric) = IN ⋅ sin φ

For resonant ground: IN (Watt-metric) = IN ⋅ cos φ

For more information about ground-fault detection by watt-metric method, refer to chapter 4.1.20 Ground-

Fault Detection with Cos φ/Sin φ Measurement

NOTE

For solid ground or if I

Logic Diagram for Phase-Fault Indication

is set to 0, I

dir

is disabled and only IN is used for detecting the ground fault.

dir

NOTE

For solid ground or if VNG is set to 0, VNG is disabled and only IN/IN (Watt-metric) is used for detecting the ground fault.

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Device Functions

4.1 Description

NOTE

For isolated/compensated systems in case of 2-phase-to-ground and 3-phase-to-ground faults, whenever a ground fault and phase fault occur at a same time, SICAM FCM indicates phase fault as a priority event on HMI/Modbus.

For more information about direction determination, refer to 4.1.15 Determination of Fault Direction,

4.1.16 Direction Determination of Phase Elements, 4.1.17 Directional Ground Fault (Compensated/Resonant-

Grounded) , and 4.1.18 Directional Ground Fault (in Isolated Electrical Power Systems).

For more information about fault-detection parameters, see Table A-2 for the Fault Parameters > Phase-Fault Detection menu and Table A-3 for the Fault Parameters > Ground-Fault Detection menu.

4.1.3

Fault-Reset Mechanism

The fault status of the device can be reset through anyone of the following mechanisms:

Auto reset as per user-defined time setting

•

Digital input (DC 24 V to DC 60 V)

•

User interface through keypad (Reset)

•

RS485/Modbus interface

•

The following logic diagram shows the fault-reset mechanism.

[lo_sfcm_faultresetmech, 2, en_US]

Figure 4-3

(1) Binary contact 1, indication on HMI and Modbus, event logs (2) Binary contact 2, indication on HMI and Modbus, event logs (3) Binary contact 1 and Binary contact 2, indication on HMI and Modbus, event logs

32 SICAM, Feeder Condition Monitor, Manual

Logic Diagram for Fault Indication and Fault Reset Mechanism

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Device Functions

4.1 Description

4.1.4

Enhanced Fault Validation and Fault-Reset Function

The enhanced fault validation provides an additional functionality by detecting the absence of voltage or current and enables a delay of the fault indication and fault reset.

The fault can be detected and reset by additionally configuring the following timers:

Timer Description

T1 Monitoring period for fault validation T2 Absence of voltage and current monitoring time T3 Auto reset time after resumption of voltage or current

When the system phase current exceeds the set current thresholds (I>, low-set or I>>, high-set) and persists for the defined time (tI>), the device starts monitoring the pickup time (T1). When the fault is isolated, the system voltage/current drops. When this condition is reached, the device monitors the absence of voltage for a time T2 for the drop in voltage or current as long as it reaches values below 6 kV (phase-to-ground) or 5 A respectively. The fault is indicated if the absence of voltage or current persists until the timer T2 elapses (T2<T1).

For the ground fault, configure the threshold for the neutral-point displacement voltage (VNG>) and the ground current (IN>). If the threshold exceeds the setting and the fault persists for the times tIN> and tVNG>, the device indicates the ground fault based on the timers T1 and T2. If the timer T3 is configured, then the auto reset of the fault indication occurs after the resumption of voltage

or currents. The device monitors if the voltages or currents of the system increase for this time period T3 above 6 kV or 5 A respectively. After elapse of the set time, the device resets the fault indication.

The following logic diagrams illustrates the fault-detection initiation and fault reset.

[lo_sfcmfaultdetect-reset, 2, en_US]

Figure 4-4

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Logic Diagram for Fault-Detection Initiation and Fault Reset

Device Functions

4.1 Description

[lo_fault_det_ini_and_reset, 3, en_US]

Figure 4-5

For isolated ground: IN (Watt-metric) = IN ⋅ sin φ

For resonant ground: IN (Watt-metric) = IN ⋅ cos φ

For more information about ground-fault detection by watt-metric method, refer to chapter 4.1.20 Ground-

Fault Detection with Cos φ/Sin φ Measurement

NOTE

For solid ground or if I

NOTE

For solid ground or if VN> is set to 0, VNG is disabled and only IN/IN (Watt-metric) is used for detecting the ground fault.

The following logic diagram illustrates the fault indication and fault reset.

Logic Diagram for Fault-Detection Initiation and Fault Reset

is set to 0, I

dir

is disabled and only IN is used for detecting the ground fault.

dir

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Device Functions

4.1 Description

[lo_sfcm_fltindrst, 2, en_US]

Figure 4-6

Logic Diagram for Fault Indication and Fault Reset

The following figure describes the timer-based fault-indication operation.

[lo_medvolsup, 2, en_US]

Figure 4-7 Timer-Based Fault Indication

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Device Functions

4.1 Description

NOTE

If any of the timers T1, T2, and T3 is set to 0, the other 2 timers are disabled. For example, if T1=0, T2 and T3 are disabled.

4.1.5

Definite Minimum Time (DMT)

Trip Time DMT and IDMT

SICAM FCM supports both the DMT and IDMT function.

DMT is applicable for both the phase fault and the ground fault. The 3 DMT settings are I>, I>>, IN>. Each setting consists of the independent trip-time delays tI>, tI>>, and tIN>. The user-defined DMT setting is used to configure various current thresholds for the entire dynamic primary

current range. If the current in the system exceeds the set threshold and persists for the set time specified, the device indi-

cates a fault. The device provides an option to set for 2 current thresholds and 2 time delay thresholds. The following table illustrates the parameter settings and the values.

Table 4-3 Reference

Parameter Attribute Value

I> Setting 50 A to 2500 A tI> Delay setting 40 ms to 60 s I>> Setting 50 A to 2500 A tI>> Delay setting 40 ms to 60 s IN> Setting 0.4 A to 2000 A

tIN> Delay setting 40 ms to 60 s

Table 4-4 Operate Level

Parameter Attribute Value

I> Operate level 110 % of I> ±5 % I>> Operate level 110 % of I>> ±5 %

Table 4-5 Operate Time

Parameter Attribute Value

tI> Operate time 40 ms ±25 ms tI>> Operate time 40 ms ±25 ms

Inverse Definite Minimum Time (IDMT)

IDMT characteristics are defined as Inverse because the trip time is inversely proportional to the fault current being measured.

In SICAM FCM, the IDMT function supports the Normal Inverse (NI) characteristics. The ANSI codes supported by the IDMT function are non-directional (51) and directional (67) for overcurrent indication.

IDMT function is applicable only for the phase currents I1, I2, and I3. The following table illustrates the parameter settings and the values.

Table 4-6

Parameter Attribute Value

I> Setting 50 A to 2500 A

Reference

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Device Functions

4.1 Description

Table 4-7 Operate Level

Parameter Attribute Value

I> Operate level 110 % of I> ±5 %

Table 4-8 Operate Time

Parameter Attribute Value

Operate time char = IEC-NI ±5 % absolute or ±40 ms Time multiplier setting (k) 0.09 –

NOTE

The IDMT function is not applicable for the ground fault IN. If tI> is set to zero, the NI trip time curve according to the IEC characteristics is calculated based on the

following formula.

is the fault current. I

fault

The fixed value of k is 0.09.

is the setting value of the pickup current.

set

4.1.6

4.1.7

NOTE

For setting the IDMT characteristics curves, set tI> = 0.

Ground-Fault Parameter Active Group Setting

The device provides 2 groups of settings (Group 1 and Group 2) for the Neutral-point treatment parameter (solid, resonant, isolated) and Ground-fault parameters (IN>, tIN>, VNG>, tVNG>, and I

You can select the active group and its group parameter from HMI and Modbus, by holding register (address

42) or by turning ON the coil 12. When the device is indicating a fault, you cannot change the active group and its parameters.

At any time, only one selected group of settings is active. These parameters are used for detecting the ground fault.

For more information about the active-group switching coil, refer to Table B-10. For more information about the active group, refer to Active Group, Page 121.

dir

Fault Indication

When the device detects a fault, the following components are activated:

LED

•

The red LED is turned on and indicates a fault.

LCD

•

The LCD displays fault current values with the fault type.

Modbus

•

The device sends the fault current, fault type, and additional fault information to the RTU.

If a fault is detected, the red LED flashes every 1 s if the device is not powered through an auxiliary supply.

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Device Functions

4.1 Description

NOTE

For the temperatures below -20 °C, the LCD display can take up to 2 min to start or display the data.

4.1.8

4.1.9

DO Configuration

The digital output (DO) is configured to indicate either the fault direction or the device-health status by using the DO configuration parameter.

If the DOs are configured to indicate the fault direction:

DO1 operates to indicate a forward fault direction and DO2 operates to indicate a reverse fault direction.

•

Operation of both DOs indicates that the fault direction could not be determined.

•

If the DOs are configured to indicate the device-health status:

DO1 operates to indicate an unhealthy device (DO2 is deactivated).

•

If both DOs do not operate, this is an indication that the device is healthy.

•

The DO configuration can only be switched if SICAM FCM does not indicate any faults. For more information about the DO configuration parameter, refer to DO Configuration, Page 123.

Operating Modes

The device goes to the sleep mode when disconnected from an auxiliary supply. In this mode, the communication with the RTU is not available. In the sleep mode, you can press any of the keys to view the events.

The device enters the deep sleep mode after 8 hours in the sleep mode and requires an auxiliary supply to recover from this mode.

4.1.10

Correction Factors for LoPo VT and LoPo CT (IEC 61869-10, IEC 61869-11)

IEC 61869-10 and IEC 61869-11 allow to adjust the magnitudes and phases of current and voltage sensors. If any inaccuracies are stable within the measuring range, then the overall accuracy of sensors is improved to higher level.

Sensors which specify individual correction factors on their labels and in routine tests can be configured

•

in SICAM FCM to improve system accuracy.

Sensors which are used in combination with SICAM FCM and do not have correction factors, disable the

•

respective correction factors. In this way, the device works with secondary values as measured without any influence on magnitudes and phase angles.

The correction factors are expressed in terms of magnitude and angle offset per phase of voltage/current. By enabling the Correction Factor parameter via HMI or Modbus, then the device applies these correction factors to improve the measuring accuracy of the sensor.

The correction factor works as per the following logic:

The measured phase-to-ground voltages and measured phase currents/ground currents are multiplied by

•

the respective voltage and current magnitude factor.

The measured phase-to-ground voltage and phase currents/ground current angles are added for positive

•

angle offset or subtracted for negative angle offset.

The correction factor is applied on all measured values and reflects on all derived values.

•

If Correction Factor parameter (holding register address 79) is set to 0 (disabled), then the correction factors with the holding addresses 80 to 91 are set to 0 and not applied in voltage/current measurements.

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Device Functions

4.1 Description

If Correction Factor parameter (holding register address 79) is set to 1 (enabled), then the correction factors with the holding addresses 80 to 91 are set to the default values. For more information about holding registers, refer to Table B-5.

NOTE

The voltage magnitude and voltage angle offset are applicable only for the 3.25/√3 LoPo VT. The current magnitude and current angle offset are applicable only for the LoPo current sensor.

4.1.11

Power-Flow Direction Reversal for Solidly-Grounded System

Power-Flow Direction Reversal

The following power-flow direction parameters define the polarity of the CT/LoPo sensor for I1, I2, and I3 measurements:

I1 power-flow direction

•

I2/IN power-flow direction

•

I3 power-flow direction

•

If the CT/LoPo sensor is connected in the opposite direction, the current measured using the CT/LoPo sensor has an additional phase shift of 180°. The power-flow direction parameters are used to compensate the additional phase shift.

If the power-flow direction parameters are set to reversed, the power-flow direction is reversed by adding 180° to the respective measured phase-current angle.

If the power-flow direction parameters are set to not reversed, it restores the power-flow direction to the original direction.

For more information about power-flow direction parameters, refer to I1 Power-Flow Direction, Page 124.

The following power-flow direction reversal parameters affect the respective power-flow direction, fault direction, and power:

•

They also affect the IN angle, IN power-flow direction, and IN> fault direction. The corrected angles for I1, I2, and I3 are displayed in the Modbus input register.

If the power-flow direction parameters are set to reversed, the fault direction is shifted by 180°.

Power-Flow Direction Reversal for Resonant/Isolated Grounded System

The power-flow direction reversal for IN affects the IN power-flow direction, IN fault direction, and watt-metric ground current. The original IN angle before correction is displayed in the Modbus input register and is used for deriving the I2 angle.

The power-flow direction reversal for I1 and I3 affects the respective power-flow direction, fault direction, and power. The corrected angles for I1 and I3 are displayed in the Modbus input register.

If the power-flow direction parameters are set to not reversed, the fault direction is shifted by 180°.

4.1.12

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P,Q Sign

The P,Q sign parameter is used to reverse the sign of active power (P) and reactive power (Q) for all phases. The P,Q sign parameter cannot be configured for individual phases.

Device Functions

4.1 Description

If the P,Q sign parameter value is set to not reversed, the sign of active power (P) and reactive power (Q) for all phases indicates the original active power (P) and reactive power (Q). If the P,Q sign parameter value is set to reversed, the signs of active power (P) and reactive power (Q) for all phases get reversed. The P,Q sign parameter is independent of the power-flow direction parameter. The P,Q sign parameter affects the total active power (P) and reactive power (Q). The P,Q sign parameter does not affect the power-flow direction, fault direction, current angle, and power factor for all phases. It also does not affect the watt-metric ground current.

For more information about the P,Q sign parameter, refer to P,Q Sign, Page 125.

4.1.13

3-Phase Angle Calculations

A phase sequence defines the sequential timing in which each phase-to-ground voltage phasor lags each phase-to-ground voltage phasor in the counter-clockwise direction.

Figure 4-8 shows the 3-phase sequence. The sequence shown below implies that V12 leads V23 by 120° and

V23 leads V31 by 120°. In addition, V1N leads V2N by 120° and V2N leads V3N by 120°. It is mandatory to establish the balanced phase sequence before any calculations. In the device, V1N is considered as a reference phasor at 0°. This phase sequence is needed to relate the calculated phasor angles with reference to the phasor V1N.

[dw_sfcm3phangcalc, 1, en_US]

Figure 4-8 3-Phase Angle Calculations

In a standard balanced system, all phase-to-phase voltages are phase-to-neutral voltages multiplied by √3 and lead the phase-to-neutral voltage phasors by 30°. For example, in a standard 4-wire, 3-phase wye system with phase-to-neutral voltages of 120 V and V1N selected as the reference phasor, then phase-to-phase voltages are as follows: V12 = 208∠ 30°; V23 = 208∠ 270°; V31 = 208∠ 150°.

4.1.14

40 SICAM, Feeder Condition Monitor, Manual

Phase-Sequence Monitoring

The phase sequence of the measured phase-to-ground voltages is checked by monitoring the angle difference between phase-to-ground and phase-to-phase voltages.

SICAM FCM monitors the phase sequence of voltage signals from voltage sensors and displays it on the HMI/ Modbus. The phase-sequence monitoring algorithm uses measured phase-to-ground voltage and phase-tophase voltage angles in balanced condition. For monitoring the phase sequence, the threshold voltage is at least 50 % of primary voltage.

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Device Functions

4.1 Description

If the phase sequence is clockwise, then it is denoted as ABC. Similarly if the phase sequence is counter-clockwise, then it is denoted as ACB. The monitored phase sequence is also displayed as 2 discrete inputs in the Modbus register.

The following phasor diagram shows the clockwise and counter-clockwise phase sequences:

[dw_sfcm-phasesequence, 1, en_US]

Figure 4-9 Clockwise and Counter-Clockwise Phase Sequences

4.1.15

In the HMI, the status of the phase sequence is shown as PH SEQ: ABC or PH SEQ: ACB or ---, if the phase sequence cannot be determined.

If the phase sequence is ABC, then the discrete input (33) of the Modbus register is set to 1. If the phase sequence is ACB, then the discrete input (34) of the Modbus register is set to 1. If the phase sequence is not detected, then the discrete inputs (33, 34) of the Modbus registers are set to 0. If the phase-to-ground voltage is below the threshold voltage, then the phase sequence is displayed as --- on

the HMI and the Modbus register is set to 0. If there are any device alerts and a fault is detected in the system, then the phase sequence is displayed as ---

on the HMI and the Modbus register is set to 0.

NOTE

Protection functions implemented in SICAM FCM are designed for clockwise phase sequence only.

Determination of Fault Direction

The fault direction for the phase faults is determined by calculating the phase angles between the fault current and the corresponding phase-to-phase voltages.

Pickup

1 I 2 – – I 3 – – – – I N – – – – – – –

1, N I

2, N – – I

3, N – – – – I

Measuring Element

1 2 3 N

V2 - V

– – – – – –

– – – – I

V3 - V

– – – –

V1 - V

– – I

V1 - V

– –

VNG = V1 + V2 + V3 (derived value)

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Device Functions

4.1 Description

Pickup Measuring Element

1, 2 I 2, 3 – – I 1, 3 I 1, 2, N I

2, 3, N – – I

1, 3, N I

1, 2, 3 I 1, 2, 3, N I

1 2 3 N

V2 - V

V2 - V V2 - V

V2 - V

V2 - V V2 - V

– – I

V3 - V V3 - V

V3 - V

V3 - V V3 - V

– – – – I

V1 - V V1 - V

– – I

V1 - V

V1 - V V1 - V

– – – –

– – I

4.1.16

Direction Determination of Phase Elements

In the device, the directional overcurrent element operates for any faults either in forward direction or in reverse direction.

The directional determination of phase elements works in the quadrature connection to prevent the loss of polarizing quantity for close-in phase faults. Each current element has a direction by a voltage derived from the other 2 phases. This connection introduces a 90° phase jump (current leading voltage) between reference voltages and operating quantities (currents). A fault is determined to be in the selected direction if its phase relationship lies within a quadrant of ± 85° on either side of the characteristic angle. It is hard-coded as +45°.

[dw_sfcm-dirdetphaelm, 1, en_US]

Figure 4-10 Direction Determination of Phase Elements

NOTE

The undetermined area for the device MLFB 6MD2321-1AA00-1AA0 is 10° and the respective angles change accordingly.

The undetermined area for the device MLFB 6MD2322-1AA00-1AA0 is 20° and the respective angles change accordingly.

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Device Functions

4.1 Description

4.1.17

Directional Ground Fault (Compensated/Resonant-Grounded)

In the compensated/resonant-grounded system, the Petersen coil is configured to match the capacitive charging currents, such that when a ground fault occurs, a negligible fault current flows. The characteristic angle is set to 0°. A boundary of +90° is used to detect the direction of the resistive component within residual currents.

With the cos φ method, the watt-metric residual current is calculated in case of a fault. This method of determining the ground-fault detection is implemented in the watt-metric method. For more information about the watt-metric method, refer to 4.1.20 Ground-Fault Detection with Cos φ/Sin φ Measurement.

In the vector method, the ground-fault detection occurs if the total current IN> is exceeded. The device calculates the active power of the zero sequence (P0) and if the value is falling in the 1st and the

4th quadrant, then the direction is forward. If the active power of the zero sequence (P0) is falling in the 2nd and 3rd quadrant, then the direction is shown as reverse.

For more information about directional ground-fault parameters (compensated/resonant-grounded), see

Table A-3 and refer to the Fault Parameter > Ground-Fault Detection > Neutral-point Treatment menu.

4.1.18

[dw_sfcm-grndflt-comp-res, 1, en_US]

Figure 4-11 Directional Ground Fault (Compensated/Resonant-Grounded) for Vector Method

NOTE

The undetermined area for the device MLFB 6MD2321-1AA00-1AA0 is 10° and the respective angles change accordingly.

The undetermined area for the device MLFB 6MD2322-1AA00-1AA0 is 20° and the respective angles change accordingly.

Directional Ground Fault (in Isolated Electrical Power Systems)

During ground fault on the isolated distribution system, no fault path is detected and subsequently no fault current flows. The phase-to-neutral capacitive charging current of the healthy phases for the entire system is supplied through the fault path. This produces a current that is used to detect the presence of the ground fault. It appears as a residual current which lags the residual voltage by 90°. The characteristic angle is -90°.

The device calculates the reactive power of the zero sequence (Q0). If the value is falling in the 1st and the 2nd quadrant, then the direction is reverse. If the reactive power of the zero sequence (Q0) is falling in the 3rd and 4th quadrant, then the direction is shown as forward.

For more information about directional ground-fault parameters (isolated grounded), see Table A-3 and refer to the Fault Parameter > Ground-Fault Detection > Neutral-point Treatment menu.

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Device Functions

4.1 Description

[dw_sfcm-grndflt-iso, 1, en_US]

Figure 4-12 Directional Ground Fault (Isolated Grounded) for Vector Method

NOTE

The undetermined area for the device MLFB 6MD2321-1AA00-1AA0 is 10° and the respective angles change accordingly.

The undetermined area for the device MLFB 6MD2322-1AA00-1AA0 is 20° and the respective angles change accordingly.

4.1.19

Ground-Fault Direction for Solidly Grounded System

The solidly grounded system is a common system arrangement in which the neutral is solidly connected to the ground. For the solid-grounded connection, the neutral-point displacement voltage is sufficient to measure and determine the directional information. This results in determining the ground-fault direction based on the rotation angle of the reference vector.

[dw_sfcm-grndflt-sol, 1, en_US]

Figure 4-13 Ground-Fault Direction for Solidly Grounded System

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Device Functions

4.1 Description

NOTE

The undetermined area for the device MLFB 6MD2321-1AA00-1AA0 is 10° and the respective angles change accordingly.

The undetermined area for the device MLFB 6MD2322-1AA00-1AA0 is 20° and the respective angles change accordingly.

For more information about ground-fault direction of solidly grounded system, see Table A-3 and refer to the

Fault Parameter > Ground-Fault Detection > Neutral-point Treatment menu.

4.1.20

Ground-Fault Detection with Cos φ/Sin φ Measurement

The ground-fault detection with cos φ/sin φ measurement method is used to detect the ground fault based on the active part of the current (resonant system) or reactive part of the current (isolated system). The groundfault detection with cos φ/sin φ measurement method is enabled when the I

the resistive part of the ground current) parameter is configured to the values as in Table 4-9. If I the device detects the ground fault based on the vector method. The ground-fault detection with cos φ/sin φ measurement method is only applicable for resonant-grounded

systems and isolated-grounded systems. If the ground current ((IN>) and the resistive current exceed the set threshold (IN> and I the time delay tIN> is greater than the set threshold, the device indicates a fault.

If I

is set to 0 (vector method), irrespective of the selected ground-type connection, the total ground current

dir

is compared with the set current IN> for fault detection. For resonant-ground connections, if I

method), the active part of the ground current is compared with I IN> for ground-fault detection.

For isolated-ground connections, if I method), the reactive part of the ground current is compared with I and IN> for ground-fault detection.

For more information about I Detection menu.

The following logic diagram illustrates the ground-fault detection with cos φ/sin φ measurement method.

parameters, see Table A-3 and refer to the Fault Parameters > Ground-Fault

dir

is not 0 (ground-fault detection with cos φ/sin φ measurement

dir

in addition to the total ground current and

dir

is not 0 (ground-fault detection with cos φ/sin φ measurement

dir

in addition to the total ground current

dir

(user-settable parameter for

dir

is set to 0,

dir

respectively) and if

dir

[lo_sfcm-grndfltdet-cossine, 2, en_US]

Figure 4-14 Logic Diagram for Ground-Fault Detection with Cos φ/Sin φ Measurement Method

The following table displays the I method status:

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range and the ground-fault detection with cos φ/sin φ measurement

dir

Device Functions

4.1 Description

Table 4-9 Ground-Fault Detection with Cos φ/Sin φ Measurement Method Range

dir

0 Vector method is enabled

0.2 A to 30 A Ground-fault detection with cos φ/sin φ measurement method is enabled

NOTE

Range Status

4.1.21

In the solidly grounded system, set the I

parameter to 0.

dir

Determination of a Ground Fault with the Pulse-Location Detection Mechanism

The Pulse-location detection mechanism detects a faulty feeder during a permanent ground fault in overcompensated systems. The Pulse-location detection mechanism is applicable for resonanlt-grounded systems only and not applicable to the undercompensated systems.

Figure 4-15 shows a simplified network with the pulse-location detection mechanism. The pulse pattern in the

ground current IN is generated by switching on and off a capacitor in parallel to the arc-suppression coil:

When the capacitor is switched on, an additional capacitive ground current is generated and the ground-

•

current compensation changes.

When the capacitor is switched off, the additional capacitive ground current no longer exists and the

•

ground-current compensation returns to the normal state.

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Device Functions

4.1 Description

[lo_sfcm_pulse_pattern_mech, 1, en_US]

Figure 4-15

Network in Pulse-Location Detection

Capacitance of the switched capacitor

L Inductance of the Petersen coil

The Figure 4-16 shows the ground-current pulse pattern in an overcompensated system for a low-impedance ground fault and a high-impedance ground fault.

For low-impedance ground faults, the pulse pattern exists only in the faulty feeder.

•

For high-impedance ground faults, the pulse pattern is also present in the healthy feeders with lower

•

amplitude but in phase opposition to the faulty feeder. Using different values of the parameters Pulse-on duration (TPulse ON) and Pulse-off

duration (TPulse OFF), the differentiation between healthy and faulty feeders for high-impedance ground faults can be ascertained.

SICAM, Feeder Condition Monitor, Manual 47 E50417-H8940-C580-A4, Edition 03.2019

Device Functions

4.1 Description

[dw_sfcm-pulse_pattern-overcomp, 1, en_US]

Figure 4-16 Ground-Current Pulse Pattern in an Overcompensated System

For the faulty feeder, the ground-current pulse pattern is as follows:

When the clocking pulse is on, the capacitor is switched on, the ground current in the faulty feeder is

•

reduced, and the corresponding current pulse pattern is off.

When the clocking pulse is off, the capacitor is switched off, the ground current in the faulty feeder is

•

increased, and the current pulse pattern is on.

Table 4-10

Clocking Pulse Capacitor Ground Current in the

On On Reduced Off Off Off Increased On

With the Pulse-on duration and Pulse-off duration parameters, you can define the switch-on and switch-off duration of the capacitor. These values must be set according to the operation of the clocking device that determines the switch-on and switch-off duration of the capacitor. If you set these 2 parameters to the same value or to similar values, there is a risk of failure. This is the case because the stage cannot distinguish the healthy and faulty feeders by only evaluating the ground current during a high-impedance ground fault.

Number of Pulses for Operate (PulseTh Op.) is defined as the number of pulses to be detected within the pulse monitoring time.

Number of Pulses for Monitoring (PulseTh Mon.) is defined as the number of pulses to be considered for calculating the pulse monitoring time.

The pulse monitoring time is calculated via the following formula: Pulse monitoring time = Number of Pulses for Monitoring (PulseTh Mon.) ⋅ (TPulse ON +

TPulse OFF) If the measured Pulse-on duration and Pulse-off duration is equal to the configured TPulse ON

and TPulse OFF, then a valid pulse is detected. If the number of detected pulses within the pulse monitoring time reaches the setting of the Number of Pulses for Operate (PulseTh Op.), then the ground fault is detected.

Current Pulse Pattern in a Faulty Feeder

Faulty Feeder

Current Pulse Pattern of the Faulty Feeder

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Device Functions

4.1 Description

4.1.22

Determination of the Ground-Fault Phase

The phase in which the voltage falls below V< (under-voltage phase threshold for groundfault) is identified as the phase fault, as long as the other 2 phase-to-ground voltages simultaneously

exceeds V> (over-voltage phase threshold for ground-fault). V< must be set to less than the minimum expected operational phase-to-ground voltage. V> must be greater than the maximum expected operational phase-to-ground voltage. If V> and V< are set to zero, these voltages will not be used for fault detection.

NOTE

V< and V> have no significance in a solidly grounded system.

The following figure shows the ground fault displayed on the HMI with the phase fault.

[dw_sfcmdtcgrndfault, 1, en_US]

Figure 4-17 HMI Display Status

4.1.23

4.1.24

Determination of Repeated Phase Faults with Automatic Reclosing

The device detects and records the repeated phase faults. A repeated phase fault is defined as the phase fault that occurs due to an automatic reclosing (AREC) as long as the SICAM FCM indicates the fault, that is, it has not been reset via one of the possible reset mechanisms yet. When a fault occurs, one of the 2 digital outputs is closed and gets latched (DO1 for forward fault direction and DO2 for reverse fault direction). For a subsequent phase fault, one of the 2 digital outputs opens for 100 ms and closes again afterwards.

For every phase fault, the Modbus register (Address 24) is set for 3 s or until the fault current persists. If the fault current does not persist, the Modbus register is reset for 3 s.

This logic is active only if the DOs are not configured. For more information about the Modbus register, refer to Table B-11.

Intermittent Ground Fault

A typical characteristic of intermittent ground faults is that they often extinguish automatically and strike again after some time. The fault can last between a few milliseconds and many seconds.

If the ground current (IN) exceeds the ground-current threshold (IN>) and lasts for time less than tIN>, then pickups are counted. When ground-current pickup counter exceeds the value of Nos det. within a configu-

rable time T det. ext., an intermittent ground fault is detected. The ground-current pickup counter is cleared under the following conditions:

If the FCM reboots and when the permanent ground fault occurs, then the ground-current pickup

•

counter is cleared.

If a permanent phase fault has occurred and the fault is reset, then the ground-current pickup counter is

•

cleared

If ground-current faults get detected multiple times within the fault reset time, the respective digital output operates for 25 ms (DO1 for forward fault direction and DO2 for reverse fault direction).

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Device Functions

4.1 Description

NOTE

The VNE threshold is not considered during IN> pickup.

4.1.25

Inrush-Current Detection/Blocking

The device detects the presence of high level of 2nd harmonic current. For example, a transformer inrush current. If the 2nd harmonic current is greater than 15 % of the measured phase current of any of the 3 phases, the device does not issue a fault indication for the set threshold I>, tI>, IN>, and tIN>. If the fault

persists for more than the configured CrossBlockTimer value, then the device displays a fault indication. The device does not block the fault indication if the fault current is above the set threshold I>> for the time tI>>.

If the fault current persists for the respective time setting (tI> for phases, tIN> for ground), the inrush-current blocking function monitors the inrush current. The inrush current is detected by analyzing the magnitude of

the 2nd harmonic components of the phase vectors.

[lo_sfcm-inrushcrnt-dct, 2, en_US]

Figure 4-18

50 SICAM, Feeder Condition Monitor, Manual

Inrush-Current Detection Logic Diagram

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Device Functions

4.1 Description

NOTE

If the CrossBlockTimer value is set as 0, then the fault indication is not blocked in case of an inrush-current detection.

4.1.26

4.1.27

Primary Current Settings

Based on the selected current-transformer type, the rated primary current parameter can be set from 50 A to 1000 A via the user interface or Modbus registers.

After setting the parameters, connect the current inputs I1, I2/IN, I3 via low-power current transformers (LoPo CTs) or conventional current transformers (CT). For interfacing via conventional CTs, use a 1 A CT adaptor

(MLFB 6MD2320-0AA10-1AA0) or a 5 A CT adaptor (MLFB 6MD2320-0AA20-1AA0). The LoPo CTs convert the primary current to a proportional output voltage. The device has a rated primary

current setting of 300 A (@ 225 mV).

Ground-Current Calculation

For solidly-grounded systems, the ground currents are calculated from the vector sum of 3 phases. The ground current is also calculated for isolated/resonant-grounded systems, when the phase-current sensor for phase L2 is connected to the I2/IN terminal.

If the ground-current sensor is connected to the I2/IN terminal, the ground current can be measured for isolated/resonant-grounded systems. When the ground current is measured, the ground current can be configured from 25 A to 150 A. For more information about the ground sensor, refer to Ground Sensor, Page 123. The calculation/measurement of the ground current is determined by setting the Ground-current acquisition

parameter.

NOTE

When the cos φ/sin φ functionality is used in isolated or resonant-grounded systems, the deviation of the ground current (I

NOTE

For isolated systems, if the angle difference between VNG and IN is closer to 0°, the deviation of the calculated ground current (I

NOTE

For resonant-grounded systems, if the angle difference between V the calculated ground current (I

NOTE

When the ground-current calculation is used with the vector method, the deviation of the calculated ground current is 3 %.

For more information about ground-current calculation, refer to Ground-Current Acquisition, Page 122

) calculated is within 3 A.

dir

) can be more than 3 A.

dir

) can be more than 3 A.

dir

and IN is closer to 90°, the deviation of

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Device Functions

4.1 Description

NOTE

For higher accuracy, Siemens recommends measuring the ground current in compensated/isolated systems.

4.1.28

4.1.29

Network Voltage Ratio

In the medium-voltage applications, higher rated voltage sensors can be used in the system with lower rated voltages. For example, a 20-kV sensor can be used in a 10-kV primary voltage system. In this case, enter the appropriate sensor voltage ratio and primary voltage settings to display the correct network voltage as described in the following example:

If the primary rated voltage is equal to the rated sensor voltage, set both the parameters, that is primary voltage and the sensor voltage as the primary rated voltage. For example, if a 20-kV sensor is used in the 20-kV system, set the primary voltage and the sensor voltage equal to 20 kV.

Also when the primary rated voltage is lower than the rated sensor voltage, set the Primary voltage parameter equal to the primary rated voltage and the Sensor voltage parameter equal to the rated sensor voltage. For example, if a 20-kV sensor is used in the 10-kV system, set the primary voltage equal to 10 kV and the sensor rated voltage equal to 20 kV.

NOTE

When the device with firmware version 2.00/2.10 is upgraded to firmware version 2.20 and above, check the Primary voltage and Sensor voltage parameters and adapt them accordingly.

Voltage Measurements with Sensors as per IEC 60044-7, IEC 61869-11 and with Conventional Voltage Sensors

The device can be used to measure voltages with the sensors as per IEC 60044-7, IEC 61869-11 and with conventional voltage sensors by connecting the sensor outputs to the V1, V2, and V3 terminals. The current

inputs (I1, I2, and I3) of the device are connected to the LoPo current sensors in the medium-voltage system. This function can be selected by configuring the primary voltage parameter to 3.25/√ 3 or 100/√ 3.

The following figure shows how the device is connected to the sensors or to the conventional voltage sensors.

[dw_sfcm-volsenIEC, 2, en_US]

Figure 4-19 Voltage Measurement with Sensors as per IEC 60044-7, IEC 61869-11 or with Conventional

Voltage Sensors

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Device Functions

4.1 Description

4.1.30

Low-Voltage Measurement

The device can be configured for low-voltage measurement. In the low-voltage system, 230 V is directly connected to the V1, V2, and V3 terminals. The current terminals I1, I2, and I3 are also connected in the low-

voltage system with appropriate current-transformer sensors. This function can be selected by configuring the Secondary voltage parameter to 230 V. In this mode, the settings for primary voltage do not have any relevance.

The following figure shows how the device is connected to the low-voltage system.

[dw_sfcm-lowvolmsrmt, 2, en_US]

Figure 4-20 Low-Voltage Measurement

4.1.31

Determination of Medium Voltage via Low-Voltage Measurements

The voltages in the medium-voltage (MV) system can be determined by measuring the voltages from the lowvoltage (LV) system. In this variant, the voltage inputs (V1, V2, and V3) of the device are connected to the

secondary side of the transformer in the LV system and the current inputs (I1, I2, and I3) of the device are connected to the LoPo current sensors in the medium-voltage system. The figure illustrates the transformer type (Dy-11) used in the medium-voltage/low-voltage measurement. For

more information about transformer types, refer to Transformer Type, Page 114.

[dw_sfcm_mv_lv_measurement, 2, en_US]

Figure 4-21 Medium-Voltage/Low-Voltage Measurement

This function can be selected by configuring the Secondary voltage parameter to 400/√3. By using this application, no additional VTs are necessary. The fault determinations are made with the help of LV-side voltage references.

The device is able to detect the direction of phase faults and ground faults in solidly grounded MV networks. The primary voltages affected by transformer losses can be corrected by providing an offset in the Primary

voltage correction parameter.

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Device Functions

4.1 Description

For the Dy-11 transformer type, the secondary side of the transformer lags the primary side of the transformer by a phase of 330°. As such the transformer angle is set to 330°.

If the Primary voltage parameter is not set to 400/√3, the settings for transformer type, voltage correction, and transformer angle do not have any relevance.

NOTE

Presently, the transformer-type options other than Dy-11 are not supported.

4.1.32

Voltage Measurement via Integrated Voltage-Detecting Systems

The SICAM FCM (6MD2322-0AA10-1AA0) can be used to measure the primary voltages in a medium-voltage system by connecting to integrated voltage-detecting systems (VDS) with low resistance modified (LRM) interface. Both the SICAM FCM and VDS device are connected in parallel connections. For the current measurements, the inputs are provided via LoPo sensors or CT adaptor.

[dw_sfcm-volmsrmtVDS, 2, en_US]

Figure 4-22 SICAM FCM - Voltage Measurement in VDS

The capacitances C1 and C2 are located internally to the RMU bushing and in the VDS device respectively. When the device is connected for the first time as per the scheme, you must calibrate the device via the HMI or Modbus to get the accurate voltage measurements.

Auto Calibration

You must calibrate the device when it is connected in the VDS system. You can calibrate the device via the HMI or Modbus.

NOTE

The auto calibration can be performed when there is no fault condition.

To auto calibrate the device at rated network voltage, proceed as follows.

Set the rated primary voltage with HMI or Modbus (Address 10).

Set the auto calibration primary voltage with HMI or Modbus (Address 49). The auto calibration voltage is

the actual primary voltage calibrated during the auto calibration.

Navigate to Process Parameters > Auto calibration.

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- or -

Alternately, auto calibration can be done by turning on the Modbus coil Address 9.

[dw_sfcmdevautocalib, 1, en_US]

Figure 4-23 VDS Device Auto Calibration

Press OK to start the auto calibration.

The auto calibration takes about 60 s to complete.

The following dialog appears:

Device Functions

4.1 Description

4.1.33

4.1.34

[dw_sfcmdevautocalib_msg, 1, en_US]

Figure 4-24 Device Auto Calibration

Energy Measurement

The device provides counters in the Modbus registers to acquire the following data:

Active import energy

•

Active export energy

•

Reactive import energy

•

Reactive export energy

•

The values are kept when the device is powered off or in sleep mode. The counter starts incrementing from the last stored value once the device is powered on.

For more information about these counters, refer to 3-Phase Active Import Energy Counter, Page 139. The counter value can be reset by any one of the following methods:

Using the Energy counter reset parameter via HMI

•

Using the Energy counter reset Modbus register. For more information, refer to Table B-10.

•

RTC Synchronization

The device provides an internal real-time clock. In order to get an external time synchronization, the device must be synchronized with the Modbus master with the current system time. The real-time clock must be synchronized at least once a day for a valid time stamp.

The device needs a time synchronization, when it resumes from the sleep mode to ensure the correct time and date. Also the time synchronization is required when the device is powered on after 8 hours of sleep mode.

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Device Functions

4.1 Description

4.1.35

Remote Firmware Updates

The firmware can be updated remotely via the Modbus/RS485 interface when it is connected to SICAM CMIC RTU. The firmware update is only possible with baud rates ranging from 4800 bps to 19200 bps. For more information, refer to the following CMIC RTU documents:

[ENGLISH] Document Number: DC0-088-2 Common Functions Modbus

•

[GERMAN] Document Number: DC0-087-2 Gemeinsame Funktionen Modbus

•

You can download the latest firmware from the following Siemens Internet page:

https://support.industry.siemens.com/cs/document/109744833/sicam-fcm-feeder-condition-monitor? dti=0&lc=en-WW.

Before uploading the SICAM FCM firmware, refer to the latest Readme for Firmware Update of SICAM FCM via CMIC/A8000.

NOTE

Configure or check the newly added parameters at least once after the remote firmware update is completed.

NOTE

For updating the firmware via the SICAM FCM Configurator tool, refer to the SICAM FCM Configurator Manual.

4.1.36

NOTE

The fault LED (red color) of the device blinks during the firmware download. It takes around 10 minutes to complete the firmware download.

NOTE

When CMIC is connected to multiple SICAM FCM devices, refer to the Readme for Firmware Update of SICAM FCM via CMIC/A8000 and configure the CMIC parameters.

Password Menu Access

The device parameter menu access can be protected by a password. For activating the Battery Freshness Mode (BFM), the password is not required to access the home screen.

The user can change the password by using the Change Password parameter in HMI only. The password can be disabled/enabled by using the Password Protection parameter in HMI.

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Device Functions

4.1 Description

[dw_sfcmpassmenuaccess, 1, en_US]

Figure 4-25 Password Menu Access

The password can be reset to the default password 1111 by resetting the password in the Modbus register. Menu navigation is not allowed after 10 wrong attempts. After 10 wrong attempts, reset the password to the

default value. The password cannot be reset through the HMI. After entering the correct password, you can access the parameters menu. If no key has been pressed during

30 minutes, the parameter menu is closed and the home screen is displayed. In the battery mode, changing the password is not allowed.

NOTE

The password has 4 digits. Each digit ranges from 0 to 9. The password 0000 is invalid.

NOTE

By default, the password protection is disabled.

4.1.37

Undervoltage Alarm and Undervoltage Warning

Overvoltage Alarm and Overvoltage Warning

Device Alerts

The device can detect and indicate overvoltage alarms and warnings, undervoltage alarms and warnings, and overcurrent alarms and warnings when it is in service. The device alerts are communicated via Modbus and displayed on the user interface. The alerts reset automatically when the current/voltage falls below the threshold levels again or exceeds them again in case of an undervoltage.

The undervoltage alerts are enabled when the system voltage falls below the user-defined setting (V Alarm/V about the undervoltage alarm and undervoltage warning, see Table A-4 and refer to the Fault Parameters >

Undervoltage Warning and Undervoltage Alarm menu.

Warning). The threshold is defined in percentage of rated primary voltage. For more information

min

The overvoltage alerts are enabled when the system voltage exceeds the user-defined settings (V V

Warning). The threshold is defined in percentage of rated primary voltage. For more information about

max

the overvoltage alarm and overvoltage warning, see Table A-4 and refer to the Fault Parameters > Over- voltage Warning and Overvoltage Alarm menu.

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max

Alarm/

Device Functions

4.1 Description

Overcurrent Alarm and Overcurrent Warning

Overcurrent warning and overcurrent alarm is applicable to phase current I1, I2, and I3 only. The overcurrent alerts are enabled if the system current exceeds the user-defined setting (I

Warning) and persists for a user-defined time (overcurrent alarm time/overcurrent warning time). The overcurrent warning and overcurrent alarm resets when the current falls below the threshold with a

hysteresis of 5 % of rated primary current. For example, if the warning threshold is set to 500 A, the device resets the alert if the current falls below 485 A for a rated primary current of 300 A (15 A is 5 % of 300 A).

For more information about the overcurrent alarm and overcurrent warning, see Table A-4 and refer to the

Fault Parameters > Overcurrent Warning and Overcurrent Alarm menu.

NOTE

max

Alarm/I

max

Configure the overcurrent threshold for current settings (I between the 2 settings is at least 10 % of the rated primary current to display an appropriate alert for an

alarm or warning.

NOTE

Configure the overvoltage threshold for voltages (V threshold for voltages (V 2 % of the rated primary voltage to display an appropriate alert for an alarm or warning.

NOTE

If you set the threshold for an undervoltage alarm (V voltage alarm (V frequency change occurs (> 0.2 Hz), a false indication of the undervoltage alarm, undervoltage warning,

overvoltage alarm, and overvoltage warning can occur.

NOTE

The overvoltage alarm/warning resets after a delay of 10 s when the voltage falls below the configured threshold. The undervoltage alarm/warning resets after a delay of 10 s when the voltages are above the configured threshold or below 50 % of the primary voltage.

Alarm), and overvoltage warning (V

max

Alarm/V

min

Warning) such that the difference between the 2 settings is at least

min

max

min

Alarm/I

max

Alarm/V

Alarm), undervoltage warning (V

max

Warning) closer to the primary voltage and if a

max

Warning) such that the difference

max

Warning) and the undervoltage

Warning), over-

min

4.1.38

58 SICAM, Feeder Condition Monitor, Manual

Archive Logging

An archive log is composed of:

Event logs

•

The device stores 20 faults as event logs on the non-volatile memory. The event logs consists of time stamps and fault current values. The event log is designed as a ring buffer where the new fault always overwrite the oldest stored event.

Due to the watchdog timer reset, the Device Error Event is also saved. For the device error event, in Modbus the Current values are shown as 0. In HMI, the message Device error watchdog timer reset is displayed without showing the phase-current values.

Trailing pointers

•

The minimum and maximum values of current are archived every 15 minutes, 30 minutes, 45 minutes, 1 hour, 24 hours, 1 month, and 1 year.

For more information about the parameters of archive logging, see Table A-1 and refer to the Events and Trailing Pointers menus.

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Device Functions

4.1 Description

NOTE

When the device is powered on from the sleep mode, the date and time display format is 01-01-2014, 00:00:00. The Modbus registers for date and time are set as invalid.

4.1.39

Battery Freshness Mode

The Battery Freshness Mode (BFM) prevents discharging of the battery until the device is powered on and used for the first time and enhances the battery life. When the device is shipped, BFM is enabled to avoid the discharge of the battery power during shipping and storage.

During installation and commissioning, the BFM is automatically disabled when the device is powered on from an external power supply for the first time.

To activate the BFM mode, it is mandatory to disconnect the power source. By selecting the BFM mode, the device stops all the routine operations until the power supply is reconnected.

NOTE

If the device is temporarily connected to the auxiliary voltage only, activate the BFM mode every time before switching off the auxiliary voltage to avoid discharge of the battery.

To enable BFM in the device, proceed as follows:

In the Home Screen, press the BFM key. The Battery freshness menu appears.

[dw_sfcmbfmhm-140314, 3, en_US]

Figure 4-26 Home Screen

In the Battery freshness menu, enable the BFM mode by pressing the OK key. Press the Esc key to return

to the Home Screen.

[dw_sfcmbfmbf-140314, 2, en_US]

Figure 4-27 Battery Freshness

The Remove Power Source menu appears.

As displayed in the Remove Power Source menu, disconnect the auxiliary voltage to enable the BFM

mode.

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Device Functions

4.1 Description

[dw_sfcmbfmrps-140314, 3, en_US]

Figure 4-28 Remove Power Source

NOTE

If the device is powered OFF without enabling the Battery Freshness Mode, then:

•

Device HMI displays the message Battery is being discharged, enable battery freshness mode and

The Fault LED (Red) and Communciation LED (Yellow) flash for 30 min.

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Technical Data

5.1 Device Technical Data 62

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Technical Data

5.1 Device Technical Data

5.1

Device Technical Data

Technical Data

Medium-voltage and low-voltage application range 1 kV to 36 kV Frequency range 45 Hz to 65 Hz Auxiliary power-supply voltage range DC 24 V to 250 V (± 10 %)

Integrated back-up battery

Measuring Inputs for Voltage (MLFB 6MD2321-1AA00-1AA0)

Rated voltage ph-n AC 3.25/√3 V, AC 100/√3 V, AC 230 V Measuring range 0.075 V to 3 V for 3.25/√3 (according to

Internal impedance 200 kΩ

Measuring Inputs for Voltage (MLFB 6MD2322-1AA00-1AA0)

Measuring range 3 V to 50 V Internal impedance 20 MΩ

AC 230 V (± 20 %) Battery lifetime for 15 years

IEC 61869-11) 3 V to 250 V for 100/√3 V 15 V to 250 V for 230 V

Measuring Inputs for Current (according to IEC 60044-8, IEC 61869-10)

Rated voltage

225 mV Internal impedance > 20 kΩ Measuring range phase current (225 mV@300 A

1 A to 6000 A sensor)

Measuring range ground current (225 mV@60 A

0.2 A to 1200 A

sensor) Thermal load capacity (current inputs) 4.5 Vrms (continuous)

Measured-Value Accuracy

Measured Variable

Accuracy Class Depending on IEC

61557-12:2007-08 (K55)

Voltage V

0.5 %

1 % for MLFB 6MD2322-1AA00-1AA0, for secondary

VDS voltage at 30 V Phase current I

1 A or 0.5 % at rated frequency Frequency f (47 Hz to 53 Hz/57 Hz to 63 Hz) 1 %

Energy measurement accuracy 1 % for a duration of 1 h

For optimum battery capacity, Siemens recommends storing the device below 30 °C; 30 % RH

The accuracy of voltage measurements is up to 0.5 % (±10 % of the rated voltage) for MLFB 6MD2321-1AA00-1AA0.

The accuracy of current measurements is up to 0.5 % (100 A to 600 A) for MLFB 6MD2321-1AA00-1AA0.

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Measured Variable Range Typical Accuracy

Apparent power (S) V = V

Reactive power (Q) V = V

Active power (P) V = V

NOTE

The accuracies of the voltage inputs connected to a VDS device are declared at an ambient temperature (25 °C). For every 10 °C rise in temperature, the accuracies get impaired.

Measured Ground-Current Accuracy for Isolated/Resonant Connection

Measured Variable Accuracy Class Depending on IEC 61557- 12:2007-08 (K55)

Setting value 0.4 A to 0.9 A 1 A to 2000 A Measuring range 0.2 A to 15 A 1 A to 1200 A Accuracy (for standard

ground-current ratio of 60 A primary)

I = 50 % to 200 % of I Power factor = 1 (Unit power factor)

I = 50 % to 200 % of I Power factor = 1 (Zero power factor)

I = 50 % to 200 % of I

± 0.1 A for current range 0.2 A to 1 A ± 0.25 A for current range 1 A to 49 A ± 10 % for current range 1.1 A to 15 A ± 1 % for current range 50 A to 1200 A

IN setting

Technical Data

5.1 Device Technical Data

± 2.0 % of rated power P Where PN= VN x I

rated

NOTE

For grounded systems, the accuracy of the calculated ground current is 3 %.

NOTE

The device parameter for ground-fault detection IN> ranges from 0.4 A to 2000 A. The accuracy of measurements differs based on the threshold value set. When the ground-fault detection is disabled (IN> is 0), the measuring range for the ground current varies from 0.2 A to 15 A.

Communications

RS485 Interface

Electrical interface RS485 Connection type Terminal block with spring-loaded terminals Supported communication protocol Modbus RTU Functionality Slave Baud rate (bps) 2400, 4800, 9600, 19200, 38400, 57600, 115200

Data format 8N1, 8E1, 8O1

Supported address area 1 to 247

Default value: 115 200 bps

Default value: 8N1

Default value: 247

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Technical Data

5.1 Device Technical Data

Digital Inputs

Number 1 External operating voltage DC 24 V to 30 V continuous signal

Digital Outputs

Number 2 Type Dry contact Maximum switching capacity 2000 VA (AC, resistive)

Permissible current per contact (continuous) 8 A Permissible current per contact (switching) 8 A

Dimensions

Type of fixing Panel flush mounting Cut-out (W x H) 92+0.8 mm x 45+0.8 mm Overall depth 109.5 mm Permissible switch panel thickness for installation 2 mm to 4 mm Mounting position Horizontal Weight ≤ 500 g

DC 30 V to 60 V periodic

0.5 s ON time and 4.5 s OFF time

240 W/30 V DC (DC, resistive)

Environment

Operating temperature range Storage temperature range -25 °C to +55 °C Humidity range 0 % to 95 %, non-condensing Altitude above sea level Maximum up to 2000 m

Protection Device Class

Device front Device rear IP 20

Power Consumption

DC 24 V/AC 230 V Peak power during power on 6.0 W

NOTE

When the auxiliary power supply fails, the device is switched on with an internal battery. In this low-power mode, the device has limited functionality.

In the low-power mode, you can reset a fault, set parameters, and view events/records. In this mode, measurements, fault detection, and communication functions are not available.

-40 °C to +70 °C

IP 40

0.8 W

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Type Testing

6.1 Type Testing 66

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Type Testing

6.1 Type Testing

6.1

Climatic Stress Tests

Electrical Tests

Type Testing

Table 6-1 Temperatures

Standards IEC 60068-2 and IEC 61326-1

Type tested (acc. to IEC 60086-2-1 and IEC 60086-2-2, Test bed for 16 h)

Permissible temporary operating temperature (tested for 96 h)

Limiting temperatures for storage and transport -25 °C to +55 °C Storage and transport in factory packaging

Table 6-2 Humidity

Permissible humidity 95 % relative humidity Siemens recommends installing the devices in a place where they are not exposed to direct sunlight or great

temperature variations that could lead to condensation.

Table 6-3 Safety Tests

Tests and Standards Test Requirements High Voltage

High voltage test (IEC 61010-1, IEC 61010-2-30)

Impulse voltage test (IEC 61010-1, IEC 61010-2-30)

Insulation Resistance (IEC 61010-1, IEC 61010-2-30)

-50 °C to +85 °C

-40 °C to +70 °C

Insulation test between auxiliary power-supply terminals (L, N), communication channels, DI, DO connected together and ground, all voltage, current channels connected together

Insulation test between auxiliary powersupply terminals (L, N) and all DI, DO terminals connected together

Insulation test between communication channels and DI terminals

Insulation test between communication channels and DO terminals

Insulation test between the digital outputs and the digital inputs

Insulation test between auxiliary power-supply terminals (L, N) and communication channels connected together

Insulation test between communication channels and voltage terminals connected together

DC 500 V, 60 s, ≥100 MΩ – –

Test (1 min)

2.5 kV 4 kV

2.5 kV 6.4 kV

1.39 kV 2.5 kV

3.5 kV 7.15 kV

3.5 kV 6.4 kV

Impulse Voltage Test (1.2 μs/50 μs, 5 positive and negative cycles)

Below -25 °C, the legibility of the display can be impaired.

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Mechanical Tests

Table 6-4 Mechanical Tests

Tests Standards Test Requirements

Vibration response test

Vibration withstand test

Shock response test IEC 60068-2-27, Class I Acceleration 5 g, duration 11 ms, 18 shocks each in both

Shock withstand test IEC 60068-2-27, Class I Acceleration 15 g, duration 11 ms, 18 shocks each in both

EMI/EMC Tests for Immunity

Table 6-5 Immunity Test

Type Testing

6.1 Type Testing

IEC 60068-2-6, Class I Sinusoidal

10 Hz to 150 Hz: ± 0.035 mm amplitude, 0.5 g acceleration, frequency sweep rate 1 octave/min, 1 cycle in 3 orthogonal axes

IEC 60068-2-6, Class I Sinusoidal

10 Hz to 150 Hz: ± 0.075 mm amplitude, 1 g acceleration, frequency sweep rate 1 octave/min, 20 cycles in 3 orthogonal axes

directions of the 3 orthogonal axes

Test Standards Test Requirements

Electrostatic

IEC 61000-4-2, Level 3 8 kV air discharge and 6 kV contact discharge discharge immunity test

Electromagnetic high frequency distur-

IEC 61000-4-3, Level 3 80 MHz to 1 GHz (10 V/m, Criteria B) and

1.4 GHz to 2.7 GHz (10 V/m, Criteria B)

bance (Radiated Susceptibility Test)

Electrical fast transient/burst immunity test

Surge immunity test IEC 61000-4-5, Level 3

IEC 61000-4-4, Level 3 ± 4 kV on auxiliary power supply, current inputs, voltage

inputs, digital input, and digital outputs ± 2 kV on communication port ± 2 kV DM, ± 4 kV CM on auxiliary power supply and

IEC 61326-1, Level 3

voltage inputs ± 1 kV DM, ± 2 kV CM on digital input and digital outputs ± 4 kV on current inputs ± 2 kV on communication port

Conducted susceptibility test

IEC 61000-4-6, Level 2

IEC 61326-1, Level 2

150 kHz to 80 MHz (3 V) on auxiliary power supply, current inputs, voltage inputs, digital input, digital outputs, and communication port

Damped oscillatory wave immunity test

IEC 61000-4-18, Level 3 2.5 kV (CM), 1.0 kV (DM) applied on current inputs, voltage

inputs, digital input, digital outputs, and communication port

(1 MHz, 100 kHz)

Power frequency magnetic field

Voltage dips and interruptions

IEC 61000-4-8, Level 4 30 A/m (continuous field) and 300 A/m pulsed (short dura-

tion for 3 s) on the X, Y, Z axis of the product IEC 61000-4-11, IEC 61000-4-29,

0 %, 40 %, and 70 % dips on AC/DC power supply

0 % short interruptions for 250/300 cycles (50 Hz/60 Hz) IEC 61326-1

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Type Testing

6.1 Type Testing

EMC Tests for Noise Emission

Table 6-6 Noise Emission

Tests Standards Test Requirements

Disturbance voltage voltage on lines, only auxiliary voltage (conducted emission)

Disturbance-field strength (radiated emission)

Ingress Protection of Enclosure

Table 6-7 Ingress Protection

Tests Standard Test Requirements

Degree of protection IEC 60529 IP40 for front side

CISPR 11 CISPR 22

CISPR 11 CISPR 32

150 kHz to 30 MHz (Class A)

30 MHz to 1 GHz (Class A) 1 GHz to 6 GHz

IP20 for rear side

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Connection Diagrams

7.1 Connection Diagrams 70

7.2 Installing the Device 73

7.3 Sensor Connections 74

7.4 Modbus Connection of SICAM FCM with RTU 78

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Connection Diagrams

7.1 Connection Diagrams

7.1

Fault Passage Indicator

Connection Diagrams

This chapter describes the various possibilities to connect the device to the medium-voltage system.

The device can be used as a dedicated Fault Passage Indicator (FPI) by using only the 3 current inputs. No directional fault information is provided in this scheme.

[dw_sfcm-sfpi, 2, en_US]

Figure 7-1 SICAM FCM as Fault Passage Indicator

NOTE

In this connection scheme, the accuracy of ground-current measurements cannot be guaranteed for isolated/resonant ground connection.

Ground-Fault Indicator

The device can be used as a dedicated ground-fault indicator by using the ground-current sensor. The following scheme shows how the device works as a non-directional ground-fault indicator (50 G).

[dw_sfcm_grdfltindi, 2, en_US]

Figure 7-2 SICAM FCM as Ground-Fault Indicator

Fault Detector

The device can be used as a fault detector by providing fault information with directional information. This requires an additional low-power voltage transformer of 3.25/√3 V or 100/√3 V sensors in the medium-voltage system or a direct connection to 230 V or when it is connected in the VDS.

For more information about VDS, see chapter 4.1.32 Voltage Measurement via Integrated Voltage-Detecting

Systems.

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3 Low-Power Voltage Sensor, 3 Low-Power Current Sensor

In a medium-voltage system, the device is connected to the voltage inputs V1, V2, and V3 via low-power voltage transformers of 3.25/√3 V or 100/√3 V. The 3 low-power current sensors are connected to the current

inputs I1, I2, and I3. This scheme is used for a solidly grounded system and the IN value is calculated.

[dw_sfcm-fltdtct-lopovt, 2, en_US]

Figure 7-3 SICAM FCM as Fault Detector – 3 Low-Power Voltage Sensors and Current Sensors with 3

Phase Currents for MLFB 6MD2321-1AA00-1AA0

Connection Diagrams

7.1 Connection Diagrams

In a medium-voltage system, the device is connected to the voltage inputs V1, V2, and V3 via the 4 V to 30 V VDS system. The 3 low-power current sensors are connected to the current inputs I1, I2, and I3. These connection diagrams are used for a solidly grounded system and the IN value is calculated.

[dw_sfcm-fltdtct-nonvt, 2, en_US]

Figure 7-4 SICAM FCM as Fault Detector – 3 Low-Power Voltage Transformer and Current Transformer

with 3 Phase Currents for MLFB 6MD2322-1AA00-1AA0

3 Low-Power Voltage Sensor, 2 Phase Current, and Sensitive Ground-Current Sensor

In a medium-voltage system, the device is connected to the voltage inputs V1, V2, and V3 via low-power voltage sensors of 3.25/√3 V or 100/√3 V. The 3 low-power current sensors are connected to I1, I2/IN, I3 with I

connected to the sensitive ground-current sensors. This scheme is used for isolated/resonant-grounded systems and the I2 value is calculated.

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Connection Diagrams

7.1 Connection Diagrams

[dw_sfcm-fltdtct-ressnt, 2, en_US]

Figure 7-5 SICAM FCM as Fault Detector – 3 Low-Power Voltage Sensor with 2 Phase Currents and Sensi-

In a medium-voltage system, the device is connected to the voltage inputs V1, V2, and V3 via 4 V to 30 V VDS system. The 3 low-power current sensors are connected to I1, I2/IN, I3 with IN connected to the sensitive ground-current sensors. These connection diagrams are used for isolated/resonant-grounded systems and the

I2 value is calculated.

tive Ground-Current Sensor for MLFB 6MD2321-1AA00-1AA0

[dw_sfcm-fltdtct-capsnt, 2, en_US]

Figure 7-6 SICAM FCM as Fault Detector – 3 Low-Power Voltage Transformer with 2 Phase Currents and

Sensitive Ground-Current Sensor for MLFB 6MD2322-1AA00-1AA0

NOTE

During electrical installation, all the rules and regulations of power systems must be observed.

Low-Voltage (230 V) Measurement

For more information about low-voltage (230 V) measurement, see chapter 4.1.30 Low-Voltage Measure-

ment.

Medium-Voltage/Low-Voltage Measurement

For more information about medium-voltage/low-voltage measurement, see chapter 4.1.31 Determination of

Medium Voltage via Low-Voltage Measurements.

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Connection Diagrams

7.2 Installing the Device

7.2

Installing the Device

Use the correct polarity before connecting to an auxiliary DC voltage.

Check and verify all terminals for proper connections.

Check the polarities and phase connections of all instrument transformers.

Before energizing with supply voltage, place the device in the operating environment for at least 2 hours

to avoid humidity and condensation problems.

NOTE

Ensure that the terminal 1 of the device is properly grounded with the ground wire provided.

NOTE

If the device is commissioned after a long period of time, make sure to run a power ON-OFF sequence and keep the device in the OFF condition for an hour.

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Connection Diagrams

7.3 Sensor Connections

7.3

Sensor Connections

The following table shows how the current and voltage sensors are designated as per the terminals.

[dw_sfcmtrml, 2, en_US]

Figure 7-7 Terminal Diagram

[ph_current_sensor_wires, 1, --_--]

Figure 7-8 Phase-Current Sensors Cable Leads (Red/Black)

[ph_voltage_sensor_wires, 1, --_--]

Figure 7-9 Phase-Voltage Sensors Cable Leads (Black/Brown)

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Connection Diagrams

7.3 Sensor Connections

Table 7-1 Sensor Connections

Sensor Phase Wire Color Terminal Pin Assignment

Current L1/A Red 13 + (S1) Current L1/A Black 14 Neutral (S2) Current L2/B Red 15 + (S1) Current L2/B Black 16 Neutral (S2) Current L3/C Red 17 + (S1) Current L3/C Black 18 Neutral (S2) Voltage L1/A Brown 19 + Voltage L1/A Black 20 Neutral Voltage L2/B Brown 21 + Voltage L2/B Black 22 Neutral Voltage L3/C Brown 23 + Voltage L3/C Black 24 Neutral

NOTE

The wire colors shown are valid for standard sensors only. Follow the instructions of the sensors you use.

Power-Flow Direction

The following figure shows the power-flow direction from P1 to P2.

[le_sfcm_powflodir-160624, 1, --_--]

Figure 7-10 Power-Flow Direction from P1 to P2

(1) Power-Flow Direction from P1 to P2

Table 7-2 Power-Flow Direction Parameters for Solidly-Grounded Systems

Phase Parameter Value

I1 power-flow direction Not reversed I2/IN power-flow direction Not reversed I3 power-flow direction Not reversed

Table 7-3 describes the power-flow direction parameters for the isolated/compensated-grounded systems.

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Connection Diagrams

7.3 Sensor Connections

Table 7-3 Power-Flow Direction Parameters for Isolated/Compensated-Grounded Systems

Phase Parameter Value

I1 power-flow direction Not reversed I2/IN power-flow direction Reversed I3 power-flow direction Not reversed

NOTE

Table 7-2 and Table 7-3 show the settings recommended by Siemens. You can change the power-flow

direction according to your applications.

Current-Sensors Grounding Connection

[dw_sfcm_cursen_grndconn, 1, en_US]

Figure 7-11 Current-Sensors Grounding Connection

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Voltage Sensors Grounding Connection

Connection Diagrams

7.3 Sensor Connections

[dw_sfcm_voltsen_grndconn, 1, en_US]

Figure 7-12

NOTE

Always ensure that the protective ground (terminal 1) of SICAM FCM is grounded in the RMU panel with a short cable size ≥ 2.5 mm2.

Voltage Sensors Grounding Connection

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Connection Diagrams

7.4 Modbus Connection of SICAM FCM with RTU

7.4

Modbus Connection of SICAM FCM with RTU

The following figure shows how the RS485 port of SICAM FCM is connected with the Remote Terminal Unit (RTU).

[dw_connection_fcm-rtu, 1, en_US]

Figure 7-13

Table 7-4 Modbus Connection with RTU

Interface X3 – – Terminal 4 5 A/Terminal 5 6 B/+ Terminal 6 4 COM/0 V

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SICAM FCM Modbus Connection with RTU

SICAM CMIC/A8000 SICAM FCM Pin Assignment

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Modbus Connection

The following figure shows the Modbus connection with SICAM CMIC/A8000, SICAM FCM, and the Motor Control Unit (MCU).

Connection Diagrams

7.4 Modbus Connection of SICAM FCM with RTU

[dw_modbus_connection_fcm-mcu, 2, en_US]

Figure 7-14

Modbus Connection with SICAM FCM and MCU

The following S2 DIP switch settings show the mode of operation of RS485 on MCU.

S2-2

S2-1 Description

OFF OFF 2W: No bus termination OFF ON 2W: With bus termination

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Connection Diagrams

7.4 Modbus Connection of SICAM FCM with RTU

Modbus Shielding and Grounding

The following figure shows how the Modbus shielding and grounding is made between SICAM CMIC/A8000 and SICAM FCM.

[dw_modbus_shielding_and_grounding, 2, en_US]

Figure 7-15 Modbus Shielding and Grounding Connection

Modbus Termination

[dw_modbus_termination, 2, en_US]

Figure 7-16 Modbus Termination

NOTE

SICAM FCM has no internal Modbus load resistor. If SICAM FCM is located at the end of the Modbus connection, use an external resistor for Modbus termination.

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Parameterization

A.1 Parameterization 82 A.2 Parameterizing the User Interface 83 A.3 Editing the Device Settings 91

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Parameterization A.1 Parameterization

A.1

Display and User Controls

Parameterization

This chapter describes the various parameter menus and the possible parameter settings that can be executed via the user interface. Parameters can also be set remotely by using the RS485/Modbus interface. The parameters are stored in the respective Modbus registers. For more information about Modbus, see B.1 Modbus Regis-

ters

The device menu screen contains the following user interface elements:

[le_sfcmdeflcdscrn, 2, en_US]

Figure A-1 Default Menu with Display and User Controls

(1) Header area (2) Display area (3) Footer area

Header

•

The header area displays the title and status of the feeder.

Display

•

The display area shows the default measured values, such as currents, voltages, power, and frequency.

Footer

•

The footer area contains the respective menu navigation functions. You can navigate through the menu using the keypads by selecting a value or editing the device settings. The following functions are assigned to the navigation keys:

– Battery Freshness Mode (BFM)

Enables the Battery Freshness Mode. For more information, refer to 4.1.39 Battery Freshness Mode.

– MENU

Calls the main menu

– OK

Opens the submenu from the selected main menu

– Save

Permanently saves the last set value and returns from edit mode to display mode

– Edit

Opens the edit mode of the device settings

– ↑↓

The up and down arrow is used to move the cursor. It is also used to scroll within the menu list and for selecting or entering numerical values.

You can also parameterize the device using the SICAM FCM Configurator tool. For more information, refer to the SICAM FCM Configurator Manual.

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Parameterization

A.2 Parameterizing the User Interface

A.2

Default Menu

Parameterizing the User Interface

This chapter describes the default menu and the possible parameter settings that you can perform with the user interface.

The default menu displays the following parameters:

•

By navigating with the keys, you can view the following parameters:

•

The default menu also displays the power-flow direction and status of the feeder.

Phase currents I1, I2, I

Ground current I

Voltage values V1, V2, V

Frequency

Phase-to-phase voltages

1-phase active power

1-phase reactive power

1-phase apparent power

3-phase active power

3-phase reactive power

3-phase apparent power

Phase sequence

Zero sequence voltage

Positive-sequence voltage

Negative-sequence voltage

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Parameterization A.2 Parameterizing the User Interface

[dw_sfcmdefscreen, 2, en_US]

Figure A-2

Default Menu

Parameterization Menu Structure

The parameterization menu structure displays the main menu and the relevant submenu functions.

Table A-1

Parameters Menu Structure

MENU ▶ EVENTS

▶ TRAILING POINTERS

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▶ FAULT PARAMETERS ▶ PROCESS PARAMETERS ▶ DO CONFIGURATION ▶ COMMUNICATION PARAMETERS ▶ DEVICE PARAMETERS

EVENTS ▶ EVENT 01 ▶ EVENT 01 IN> --

EVENT 02 2014-04-01

00:19:14 AMEVENT N I1 I2 I3 IN

398 397 380 20 <ESC ↓

Parameterization

A.2 Parameterizing the User Interface

TRAILING POINTERS

▶ LAST 15 MIN RECORDS

LAST 30 MIN RECORDS ▶ LAST 30 MIN LAST 45 MIN RECORDS I1 I2 I3 IN LAST 60 MIN RECORDS Hi

Lo LAST 30 DAYS RECORDS LAST 1 YEAR RECORDS <ESC ↓

Table A-2 Parameters Menu Structure - Fault Parameters

FAULT PARAMETERS

▶ PHASE-FAULT

DETECTION

▶ PHASE-FAULT

DETECTION I>>

▶ 50 A to 2500 A

▶ SAVE

PHASE-FAULT

▶ 0.04 s to 60 s

DETECTION tI>>

▶ SAVE

PHASE-FAULT

▶ 50 A to 2500 A

DETECTION I>

▶ SAVE

PHASE-FAULT

▶ 0.04 s to 60 s

DETECTION tI>>

▶ SAVE

0 0

210 205

310 218

(Set to "0" to disable the detection function)

0 0LAST 1 DAY RECORDS

Table A-3 Parameters Menu Structure - Fault Parameters

FAULT PARAME-

▶ GROUND-FAULT

DETECTION IN>

▶ ACTIVE

GROUP

▶▶GROUP 1

GROUP 2

▶▶SAVE

SAVE

TERS

GROUND-FAULT DETECTION IN>

▶ GROUP1

SETTING

▶ GROUND-FAULT

DETECTION IN>

▶ 0.4 A to 2000 A

(Set to "0" to disable the detection function)

▶ SAVE

▶ GROUND-FAULT

▶ 0.04 s to 60 s

DETECTION tIN>

▶ SAVE

▶ THRESHOLD

SETTING VNG>

▶ 0 % to 100 %

(Set to "0", the ground-fault detection is based on IN>)

▶ SAVE

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Parameterization A.2 Parameterizing the User Interface

▶ TIME SETTING

tVNG>

▶ I

dir

▶ NEUTRAL-POINT

TREATMENT

▶ GROUP2

SETTING

▶ GROUND-FAULT

DETECTION IN>

▶ GROUND-FAULT

DETECTION tIN>

▶ THRESHOLD

SETTING VNG>

▶ TIME SETTING

tVNG>

▶ I

dir

▶ NEUTRAL-POINT

TREATMENT

▶ V< ▶ 0 % to 100 %

(Set to "0" to disable the detection function)

▶ SAVE

▶ V> ▶ 0 % to 170 %

(Set to "0" to disable the detection function)

▶ SAVE

▶ PULSE

▶ 3I0 DELTA ▶ 0 % to 300 % DETECTION

PULSE

▶ TPULSE ON ▶ 0.50 s to 20 s DETECTION

▶ TPULSE OFF ▶ 0.50 s to 20 s

▶ 0.04 s to 60 s

▶ SAVE ▶ 0.2 A to 30 A

(Set to "0" to disable the

cos ϕ/sin ϕ method) ▶ SAVE ▶ SOLID or ISOLATED or RESO-

NANT ▶ SAVE ▶ 0.4 A to 2000 A

(Set to "0" to disable the

detection function) ▶ SAVE ▶ 0.04 s to 60 s

▶ SAVE ▶ 0 % to 100 %

(Set to "0", the ground-fault

detection is based on IN>) ▶ SAVE

▶ 0.04 s to 60 s

▶ SAVE ▶ 0.2 A to 30 A

(Set to "0" to disable the

cos ϕ/sin ϕ method) ▶ SAVE ▶ SOLID or ISOLATED or RESO-

NANT ▶ SAVE

(Set to "0" to disable the

detection function) ▶ SAVE

(Set to "0" to disable the

detection function) ▶ SAVE

(Set to "0" to disable the

detection function) ▶ SAVE

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▶ PULSETH OP. ▶ 0 to 100

▶ PULSETH MON. ▶ 0 to 100

▶ INTERMIT-

▶ NOS. DET. ▶ 0 to 999 TENT GROUND FAULT

▶ T-DET.EXT ▶ 0 to 600

Table A-4 Parameters Menu Structure - Fault Parameters

Parameterization

A.2 Parameterizing the User Interface

(Set to "0" to disable the detection function)

▶ SAVE

(Set to "0" to disable the detection function)

▶ SAVE

(Set to "0" to disable the detection function)

▶ SAVE

(Set to "0" to disable the detection function)

▶ SAVE

FAULT PARAMETERS

▶ OVERVOLTAGE

ALERTS

▶ UNDER-

VOLTAGE ALERTS

▶ OVERCURRENT

ALERTS

▶ AUTO RESET

TIME

▶ OVERVOLTAGE

WARNING

▶ 0 % to 30 %

(Set to "0" to disable the overvoltage warning)

▶ SAVE

▶ OVERVOLTAGE

ALARM

▶ 0 % to 30 %

(Set to "0" to disable the overvoltage alarm)

▶ SAVE

▶ UNDER-

VOLTAGE WARNING

▶ 0 % to 30 %

(Set to "0" to disable the undervoltage warning)

▶ SAVE

▶ UNDER-

VOLTAGE

▶ 0 % to 30 %

(Set to "0" to disable the undervoltage alarm)

ALARM

▶ SAVE

▶ OVERCURRENT

WARNING

▶ 50 A to 2000 A

(Set to "0" to disable the detection function)

▶ SAVE

▶ OVERCURRENT

ALARM

▶ 50 A to 2000 A

(Set to "0" to disable the detection function)

▶ SAVE

▶ OVERCURRENT

TWARNING

▶ 1 min to 120 min

(Set to "0" to disable the overcurrent warning)

▶ SAVE

▶ OVERCURRENT

TALARM

▶ 1 min to 120 min

(Set to "0" to disable the overcurrent alarm)

▶ SAVE

▶ 0 min to 480 min

(Set to "0", auto reset is immediate on fault restoration)

▶ SAVE

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Parameterization A.2 Parameterizing the User Interface

▶ CROSSBLOCK

▶ 0 ms to 60 000 ms

TIMER

▶ OK

▶ TIMER LOGIC ▶ TIMER LOGIC T1 ▶ 0 to 60 s

(Enhanced fault validation and reset function is disabled)

▶ SAVE

▶ TIMER LOGIC T2 ▶ 0 to 25 s

(Enhanced fault validation and reset function is disabled)

▶ SAVE

▶ TIMER LOGIC T2 ▶ 0 to 240 s

(Enhanced fault validation and reset function is disabled)

▶ SAVE

Table A-5 Parameters Menu Structure - Timer Logic and Process Parameters

PROCESS PARAMETERS

▶ CORRECTION

FACTOR

▶ DISABLE (Default)

▶ ENABLE

▶ VOLTAGE

PARAMETERS

▶ LV TO MV CALCU-

LATION

▶ TRANSFORMER

TYPE

▶ TRANSFORMER

ANGLE

▶ PRIMARY

VOLTAGE CORRECTION

▶ CAPACITIVE

VOLTAGE MEAS-

▶ AUTO CALIBRA-

TION VOLTAGE

UREMENT

▶ AUTO CALIBRA-

TION

▶ RATED SEC.

VOLTAGE

▶ AC 3.25/√3 or AC 100/√3 V or AC 230 V or

AC 400/√3

▶ SAVE

▶ RATED PRI.

▶ 1.0 kV to 36.0 kV

VOLTAGE

▶ SAVE

▶ SENSOR VOLTAGE

▶ 1.0 kV to 36.0 kV

PRIMARY

▶ SAVE

▶ VOLTAGE CORREC-

TION FACTOR

▶ V1 MAGNITUDE

FACTOR

▶ V1 ANGLE OFFSET ▶ V2 MAGNITUDE

FACTOR

▶ V2 ANGLE OFFSET

▶ DY-11

▶ 0° to 359°

▶ SAVE ▶ 0 V to 900 V

▶ SAVE ▶ 1000 V to 36000 V

▶ SAVE ▶ START AUTO CALI-

BRATION

▶ OK

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PROCESS PARAMETERS

▶ CURRENT

PARAMETERS

▶ RATED PRIMARY

CURRENT

▶ GROUND SENSOR ▶ 25 A to 150 A

▶ POWER-FLOW

DIRECTION

▶ GND CURR

ACQUISITION

▶ CURRENT CORREC-

TION FACTOR

▶ FREQUENCY ▶ 50 Hz or 60 Hz

▶ SAVE

▶ ENERGY

▶ PRESS OK COUNTER RESET

▶ OK

▶ P, Q SIGN ▶ NOT REVERSED

▶ REVERSED

▶ SAVE

Parameterization

A.2 Parameterizing the User Interface

▶ V3 MAGNITUDE

FACTOR

▶ V3 ANGLE OFFSET ▶ 50 A to 1000 A

▶ SAVE

▶ SAVE ▶ I1 POWER-FLOW

▶ NOT REVERSED

DIRECTION

▶ REVERSED ▶ SAVE

▶ I2/IN POWER-

▶ NOT REVERSED

FLOW DIRECTION

▶ REVERSED ▶ SAVE

▶ I3 POWER-FLOW

▶ NOT REVERSED

DIRECTION

REVERSED SAVE

▶ MEASUREMENT OR CALCULATION

▶ SAVE ▶ I1 MAGNITUDE

FACTOR

▶ I1 ANGLE OFFSET ▶ I2/IN MAGNITUDE

FACTOR

▶ I2/IN ANGLE

OFFSET

▶ I3 MAGNITUDE

FACTOR

▶ I3 ANGLE OFFSET

Table A-6 Parameters Menu Structure - DO Configuration

DO CONFIGURATION ▶ FAULT DIRECTION OR DEVICE HEALTH

▶ SAVE

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Parameterization A.2 Parameterizing the User Interface

Table A-7 Parameters Menu Structure - Communication and Device Parameters

COMMUNICATION PARAMETERS

DEVICE PARAMETERS

▶ MODBUS PARAMETER ▶ MODBUS ID

▶ 1 to 247 ▶ SAVE

BAUD RATE ▶ 2400 bps to 115 200 bps

▶ SAVE

PARITY ▶ NONE or EVEN or ODD

▶ SAVE

▶ DEVICE LANGUAGE ▶ ENGLISH or DEUTSCH or ESPAÑOL or PORTUGUÉS or

FRANÇAIS

▶ SAVE

DATE AND TIME ▶ DATE SETTINGS

▶ DATE TODAY ▶ 2012 to 2099/1 to 12/1 to 31 ▶ SAVE

DATE AND TIME ▶ DATE FORMAT

▶ DD-MM-YYYY or MM-DD-YYYY or YYYY-MM-DD ▶ SAVE

DATE AND TIME ▶ TIME SETTINGS

▶ TIME NOW ▶ 0 to 23/0 to 59/0 to 59 ▶ SAVE

DATE AND TIME ▶ TIME FORMAT

▶ NEW TIME FORMAT ▶ 12 HOUR or 24 HOUR ▶ SAVE

VERSION INFORMATION

SELF TEST ▶ ACTIVATES SELF TEST PASSWORD PROTEC-

TION

CHANGE PASSWORD ▶ ENTER NEW PASSWORD

▶ ACTIVE FIRMWARE VERSION INFORMATION IS

DISPLAYED

▶ DISABLE OR ENABLE

▶ SAVE

NOTE

The device resets if one of the following parameters is changed:

Frequency

•

Neutral-point treatment

•

Baud rate

•

Parity

•

Ground-fault detection IN>, when the parameter is changed above or below the threshold of 1 A

•

Ground-current acquisition (calculation/measurement)

•

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Parameterization

A.3 Editing the Device Settings

A.3

Editing the Device Settings

This chapter describes with an example how to edit and set the device parameters. To edit the phase-current threshold value settings, proceed as follows:

On the default menu, select Menu.

The Menu appears.

Navigate to the Fault Parameters menu and press OK.

The Phase-Fault Detection I>> menu with the different phase-fault parameters appears.

Navigate to Phase-Fault Detection I>> and press OK.

The Saved I >> menu appears.

In the Saved I >> menu, press Edit>.

The New I>> menu appears.

In the New I >> menu, press the up arrow or the down arrow to set the New I>> value within the desired

range.

Press Save> to save the new Phase-Fault Detection I>> value.

NOTE

To navigate from one value to another value, use the left arrow and right arrow. For entering values, for example, from 0 A to 2500 A, press the up arrow or the down arrow.

Press Esc if you want to cancel the edit mode and to return to the display mode. All the saved values are

discarded.

[dw_sfcmeditparaset, 1, en_US]

Figure A-3

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Editing Phase-Protection Settings

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Modbus Registers

B.1 Modbus Registers 94 B.2 Implementation of the Modbus Protocol 95 B.3 Bit-Type Data 107 B.4 Register-Type Data – Holding Registers 110 B.5 Register-Type Data – Input Registers 131 B.6 Register-Type Data – Analog Input Registers 144 B.7 Register-Type Data - Events 150 B.8 Register-Type Data – Trailing Pointers 153 B.9 Self-Test Mode 156

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Modbus Registers B.1 Modbus Registers

B.1

Modbus Registers

Modbus is a field bus which is used to exchange data between programmable logic controllers (PLCs) and other devices. The communication protocol is based on the master/slave system over a serial line (RS485).

The Modbus master requests data from the slaves which are connected to the bus. The slaves answer to the request from the master. The device works as Modbus Slave and supports communication via RS485. Regardless of the transmission mode, the communication cycle and contents remain the same. The message frame contains the following format:

Device address

•

Function code

•

8-bit data bytes

•

Error checking

•

The following Modbus data models are supported:

Bit type data

•

– Discrete input

– Coil

•

– Input register

– Holding register

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Modbus Registers

B.2 Implementation of the Modbus Protocol

B.2

Modbus Function Codes

Data-Package Format

Implementation of the Modbus Protocol

The device operates as a Modbus Remote Terminal Unit (RTU) slave.

Function Code Function as per Modbus Specification Description

01 Read coils Bit access to BIT-AREA 02 Read discrete inputs Bit access to BIT-AREA 03 Read holding registers 16-bit access to REGISTER-AREA 04 Read input registers 16-bit access to REGISTER-AREA 05 Write single coil Bit access to BIT-AREA 06 Write single register 16-bit access to REGISTER-AREA 15 Write multiple coils Bit access to BIT-AREA 16 Write multiple registers 16-bit access to REGISTER-AREA

If the device receives an unsupported function code, it returns the exception code response as 01.

Table B-1 Communication Settings

Baud rate (bps) 2400, 4800, 9600, 19200, 38400, 57600, 115200 Parity O/E/N

Table B-2 Modbus Parameters

Modbus ID 1 to 247

Modbus type RTU

In the SICAM FCM, the data-byte standard setting is as follows:

•

Modbus Data

The device supports the following data types:

•

The following abbreviations are used for the register names:

Input Registers Holding Registers Hold-Reg

For more information about bit-type data - coil, see B.3 Bit-Type Data.

0 - Broadcast 248 to 255 Special

1 start bit

8 data bits (LSB first)

1 parity bit (odd/even/none)

1 stop bit

Bit-type data (discrete inputs/coil)

Inp-Reg

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Modbus Registers B.2 Implementation of the Modbus Protocol

Table B-3 Bit-Type Data - Coil

Address Modbus Data Type Parameters Access

1 Coil Activate self-test mode R/W 2 Coil Reset device R/W 3 Coil Reset fault R/W 4 – Reserved for future use – 5 Coil Digital output 1 R/W 6 Coil Digital output 2 R/W 7 Coil Clear data available status R/W 8 Coil Clear event database R/W 9 Coil Initiate auto calibration R/W 10 Coil Energy counter reset R/W 11 Coil Password reset coil R/W 12 Coil Active-group switching R/W

For more information about bit-type data - discrete inputs, see B.3 Bit-Type Data.

Table B-4 Bit-Type Data - Discrete Inputs

Address Modbus Data Type Parameters Access

1 Discrete Input Status data/data available R 2 Discrete Input Self-test mode activated R 3 Discrete Input Overcurrent (I>>), high-set without direction

4 Discrete Input Ground-fault detection (IN>) R 5 Discrete Input Overvoltage warning (V 6 Discrete Input Overvoltage alarm (V 7 Discrete Input Undervoltage warning (V 8 Discrete Input Undervoltage alarm (V 9 Discrete Input I>/I>> direction A R

10 Discrete Input I>/I>> direction B R 11 Discrete Input IN> direction A R

12 Discrete Input IN> direction B R 13 Discrete Input Forward (A) power-flow direction of I 14 Discrete Input Reverse (B) power-flow direction of I 15 Discrete Input Forward (A) power-flow direction of I 16 Discrete Input Reverse (B) power-flow direction of I 17 Discrete Input Forward (A) power-flow direction of I 18 Discrete Input Reverse (B) power-flow direction of I 19 Discrete Input Time synchronization required R

20 Discrete Input Overcurrent warning R 21 Discrete Input Overcurrent alarm R 22 Discrete Input Overcurrent stage I>, low-set without direction

23 Discrete Input Phase-fault indication (I>/I>>) R 24 Discrete Input Phase-fault indication (I>/I>>) for at least 3 s R 25 Discrete Input Device-health status R

indication

Warning) R

max

Alarm) R

max

Warning) R

min

Alarm) R

min

R R R R R R

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Modbus Registers

B.2 Implementation of the Modbus Protocol

Address Modbus Data Type Parameters Access

26 Discrete Input I1 overcurrent (I>/I>>) indication R 27 Discrete Input I2 overcurrent (I>/I>>) indication R 28 Discrete Input I3 overcurrent (I>/I>>) indication R 29 Discrete Input I1 phase 1 to ground-fault (IN) indication R 30 Discrete Input I2 phase 2 to ground-fault (IN) indication R 31 Discrete Input I3 phase 3 to ground-fault (IN) indication R 32 Discrete Input Intermittent ground fault (IN>) R 33 Discrete Input Clockwise phase-sequence indication, ABC R

34 Discrete Input Counter-clockwise phase-sequence indication,

ACB

For more information about holding registers, see B.4 Register-Type Data – Holding Registers.

Table B-5 Holding Registers

Address Min/Max Value Parameters Default Unit Type

1 – Modbus frame configuration 0 – uInt16 2 0 to 6 Modbus baud rate 6 bps uInt16 4 1 to 247 Modbus ID 247 – uInt16 5 to 8 – Date and time – – uInt16 9 0 to 1 Grid frequency 0 – uInt16 10 10 to 360 Primary voltage 200 1/10 kV uInt16 11 0, 50 to 2500 Overcurrent trip value (I>>), high-set 0 A uInt16 12 4 to 6000 Overcurrent response time (tI>>) 4 x 10 ms uInt16 13 0, 4 to 20000 Ground-fault trip value (IN>) (Group 1) 0 1/10 A uInt16

14 4 to 6000 Ground-fault response time (tIN>) (Group 1) 4 x 10 ms uInt16 15 2 Transformer type 2 – uInt16

16 0 to 2 Neutral-point treatment (Group 1) 2 – uInt16 17 0 to 4 Language 1 – uInt16 18 0 to 3 Voltage transformer secondary/low-power

0 V uInt16

voltage transformer 19 0 to 2 Date type 0 – uInt16 20 0 to 1 Time type 0 – uInt16 21 0 to 30 V

22 0 to 30 V 23 0 to 30 V 24 0 to 30 V 25 0 to 100 Neutral-point displacement voltage VNG>

alarm 0 % uInt16

max

warning 0 % uInt16

max

alarm 0 % uInt16

min

warning 0 % uInt16

min

30 % uInt16

(Group 1) 26 4 to 6000 Neutral-point displacement time tVNG>

10 x 10 ms uInt16

(Group1) 27 0, 3 to 480 Auto reset time 480 min uInt16 28 50 to 1000 Rated primary current 300 A uInt16 29 0, 50 to 2500 Overcurrent trip value I>, low-set 0 A uInt16 30 0, 4 to 6000 Overcurrent response time (tI>), low-set 4 x 10 ms uInt16 31 0, 1 to 60 T1 0 s uInt16 32 0, 1 to 25 T2 0 s uInt16

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Modbus Registers B.2 Implementation of the Modbus Protocol

Address Min/Max Value Parameters Default Unit Type

33 0, 30 to 240 T3 0 s uInt16 34 0, 50 to 2000 I

35 0, 50 to 2000 I 36 0 to 120 I 37 0 to 120 I 38 0 to 900 Primary-voltage correction 0 V uInt16

39 0 to 359 Transformer angle 330 degrees uInt16 40 0, 2 to 300 I

41 10 to 360 Sensor voltage 200 1/10 kV uInt16 42 0 to 1 Active group 0 – uInt16 43 0, 4 to 20000 Ground-fault trip value (IN>) (Group 2) 600 1/10 A uInt16

44 4 to 6000 Ground-fault response time (tIN>) (Group 2) 100 x10 ms uInt16 45 0 to 100 Neutral-point displacement voltage VNG>

46 4 to 6000 Neutral-point displacement time tVNG>

47 0, 2 to 300 I 48 0 Capacitor voltage 0 – uInt16

49 1000 to 36000 Auto calibration voltage 20 000 V uInt16 50 0 to 1 Ground-current acquisition 0 – uInt16 51 0 to 1 DO configuration 0 – uInt16 52 – Reserved for future use – – – 53 – Reserved for future use – – – 54 0 to 60000 Crossblocktimer 100 ms uInt16 55 25 to 150 Ground sensor 60 A uInt16 56 0 to 1 I1 power-flow direction 0 – uInt16

57 0 to 1 I2/IN power-flow direction 1 – uInt16 58 0 to 1 I3 power-flow direction 0 – uInt16 59 0 to 1 P, Q sign 0 – uInt16

60 0 to 2 Neutral-point treatment (Group 2) 1 – uInt16 61 – Reserved for future use – – 62 – Reserved for future use – – 63 – Reserved for future use – – 64 – Reserved for future use – – 65 – Reserved for future use – – 66 – Reserved for future use – – 67 – Reserved for future use – – 68 – Reserved for future use – – 69 – Reserved for future use – – 70 0 to 100 Under-voltage phase threshold for ground

71 0, 100 to 170 Over-voltage phase threshold for ground

72 0, 1 to 300 3I0 Delta pulse off-on 0 % uInt16 73 0, 20 to 2000 Pulse-on duration 0 x10 ms uInt16 74 0, 20 to 2000 Pulse-off duration 0 x10 ms uInt16

alarm setting 0 A uInt16

max

warning setting 0 A uInt16

max

alarm time setting 0 min uInt16

max

warning time setting 0 min uInt16

max

(Group 1) 10 1/10 A uInt16

dir

0 % uInt16

(Group 2)

4 x10 ms uInt16

(Group 2)

(Group 2) 10 1/10 A uInt16

dir

0 % uInt16

fault V<

0 % uInt16

fault V>

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Modbus Registers

B.2 Implementation of the Modbus Protocol

Address Min/Max Value Parameters Default Unit Type

75 0 to 100 Number of pulses for operate 0 – uInt16 76 0 to 100 Number of pulses for monitoring 0 – uInt16 77 0, 2 to 999 Nos det. 0 – ulnt16 78 0 to 600 T-det. ext 0 s ulnt16

0 1

80 0, 700 to 3000 V1 magnitude factor

Correction factor disabled

Correction factor enabled

0 – ulnt16

0 1/1000 ulnt16

(correction factor disabled)

V1 magnitude factor

1000

(correction factor enabled) 81 -500 to 500 V1 angle offset 0 min Int16

82 0, 700 to 3000 V2 magnitude factor

0 1/1000 ulnt16

(correction factor disabled)

V2 magnitude factor

1000

(correction factor enabled) 83 -500 to 500 V2 angle offset 0 min Int16

84 0, 700 to 3000 V3 magnitude factor

0 1/1000 ulnt16

(correction factor disabled)

V3 magnitude factor

1000

(correction factor enabled) 85 -500 to 500 V3 angle offset 0 min Int16

86 0, 800 to 1200 I1 magnitude factor

0 1/1000 ulnt16

(correction factor disabled)

I1 magnitude factor

1000

(correction factor enabled) 87 -500 to 500 I1 angle offset 0 min Int16

88 0, 800 to 1200 I2/IN magnitude factor

0 1/1000 ulnt16

(correction factor disabled)

I2/IN magnitude factor

1000

(correction factor enabled) 89 -500 to 500 I2/IN angle offset 0 min Int16

90 0, 800 to 1200 I3 magnitude factor

0 1/1000 ulnt16

(correction factor disabled)

I3 magnitude factor

1000

(correction factor enabled) 91 -500 to 500 I3 angle offset 0 min Int16

For more information about register-type data – input registers, see B.5 Register-Type Data – Input Registers.

Default values in holding addresses 80 to 91 are dependent on whether the parameter Correction factor (holding register 79) is disabled or enabled.

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Modbus Registers B.2 Implementation of the Modbus Protocol

Table B-6 Input Registers

Address Min/Max Value Parameters Unit Type

1000 0 to 65535 Phase current I 1001 0 to 65535 Phase current I 1002 0 to 65535 Phase current I 1003 0 to 65535 Ground current IN for compensated/isolated

0 to 9999 Ground current IN for grounded systems A

1004 0 to 65535 Voltage V

1005 0 to 65535 Voltage V

1006 0 to 65535 Voltage V

1007 0 to 65535 Voltage V

1008 0 to 65535 Voltage V

1009 0 to 65535 Voltage V

1010 0 to 65535 Displacement voltage V

1011 0 to 3599 Phase angle I 1012 0 to 3599 Phase angle I

systems

A uInt16 A uInt16 A uInt16 1/100 A uInt16

1/10 V for 230-V

uInt16

sensor 1/100 kV for 3.25/√3

sensor, for 100/√3 sensor, and for 400/√3 sensor

1/10 V for 230-V

uInt16

sensor 1/100 kV for 3.25/√3

sensor, for 100/√3 sensor, and for 400/√3 sensor

1/10 V for 230-V

uInt16

sensor 1/100 kV for 3.25/√3

sensor, for 100/√3 sensor, and for 400/√3 sensor

1/10 V for 230-V

uInt16

sensor 1/100 kV for 3.25/√3

sensor, for 100/√3 sensor, and for 400/√3 sensor

1/10 V for 230-V

uInt16

sensor 1/100 kV for 3.25/√3

sensor, for 100/√3 sensor, and for 400/√3 sensor

1/10 V for 230-V

uInt16

sensor 1/100 kV for 3.25/√3

sensor, for 100/√3 sensor, and for 400/√3 sensor

1/10 V for 230-V

uInt16

sensor 1/100 kV for 3.25/√3

sensor, for 100/√3 sensor, and for 400/√3 sensor

1/10° uInt16 1/10° uInt16

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Siemens SICAM User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Preface

Open Source Software

Table of Contents

Delivery

1.1 Delivery

Introduction

2.1 Overview

2.2 Environmental Protection Hints

Hardware Components and Drawings

3.1 Hardware Components

3.2 Terminal Diagram

3.3 Dimensional Drawings

Device Functions

4.1 Description

Measurements and Derived Values

Fault Detection

Fault-Reset Mechanism

Enhanced Fault Validation and Fault-Reset Function

Trip Time DMT and IDMT

Ground-Fault Parameter Active Group Setting

Fault Indication

DO Configuration

Operating Modes

Correction Factors for LoPo VT and LoPo CT (IEC 61869-10, IEC 61869-11)

Power-Flow Direction Reversal

P,Q Sign

3-Phase Angle Calculations

Phase-Sequence Monitoring

Determination of Fault Direction

Direction Determination of Phase Elements

Directional Ground Fault (Compensated/Resonant-Grounded)

Directional Ground Fault (in Isolated Electrical Power Systems)

Ground-Fault Direction for Solidly Grounded System

Ground-Fault Detection with Cos φ/Sin φ Measurement

Determination of a Ground Fault with the Pulse-Location Detection Mechanism

Determination of the Ground-Fault Phase

Determination of Repeated Phase Faults with Automatic Reclosing

Intermittent Ground Fault

Inrush-Current Detection/Blocking

Primary Current Settings

Ground-Current Calculation

Network Voltage Ratio

Voltage Measurements with Sensors as per IEC 60044-7, IEC 61869-11 and with Conventional Voltage Sensors

Low-Voltage Measurement

Determination of Medium Voltage via Low-Voltage Measurements

Voltage Measurement via Integrated Voltage-Detecting Systems

Energy Measurement

RTC Synchronization

Remote Firmware Updates

Password Menu Access

Device Alerts

Archive Logging

Battery Freshness Mode

Technical Data

5.1 Device Technical Data

Type Testing

6.1 Type Testing

Connection Diagrams

7.1 Connection Diagrams

7.2 Installing the Device

7.3 Sensor Connections

7.4 Modbus Connection of SICAM FCM with RTU

A.2 Parameterizing the User Interface

A.3 Editing the Device Settings

B.2 Implementation of the Modbus Protocol