DR2Control & Monitoring

Instructions

Data Retrieval Unit Type

Secondary Distribution Switchgear

DR2 Contents

iAMTNoT220-02 revision: 00

1 DR2: description & operation 1. . . . . . . . . . . . . . . . . . . . . . . .1.1 Introduction 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.2 Functions of DR2 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.3 Operation through keypad 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Using Functions of HMI 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.4 LED 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.5 Slave Address Configuration 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2 Description of Viewing/Editable Menu of HMI 3. . . . . . . . .2.1 Menu Frames 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.2 How to replace Battery 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.3 Front HDMI Description 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.4 Terminal Details 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.5 Battery Voltage 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3 Notes 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DR2

AMTNoT220-02 revision: 00 1

1.1 Introduction

Battery operated Data Retrieval unit typeDR2 is designed as an accessory for selfpowered relay type DPX1. DR2 is connectedto DPX1 via RS485 serial link and the twounits communicate on Modbus protocol. DR2act as master and DPX1 as slave underModbus protocol.

1.2 Functions of DR2

1. It has a Human-Machine-Interface consisting of a two line LCD module and a keypad having three keys for editing/ viewing parameters.

2. It display's the Primary current levels of DPX1 in R, Y, B and Earth according to selected CT Ratio.

3. It displays Nominal Frequency, Trip Count of DPX1. It also allows to reset the trip count.

4. After retrieving the last fault information from DPX1, it stores this information in its non volatile memorywith its local time stamp which user can view even in the absence of DPX1.

5. DR2 provide the provision of its Battery supply to DPX1, required for communication.

1.3 Operation through keypad

Viewing Parameters:

1. Read Primary RMS value of phase and earth current in reference to set CT Ratio.

2. Reading the last four fault records with local date & time stamp

3. Trip Counter Status [Range : 1 -65535]

4. Reading Nominal Frequency of DPX1

Editable Parameters:1. Reset Trip Count

2. Editing the Time & Date setting

3. Editing of CT Ratio [Range : 20 - 400] for primary current display

4. Slave Address configuration for communication with DPX1 [Range: 1-32]

Using Functions of HMI

Main menu: This menu appears on power upas well as by moving to it thru other menusby scrolling.

It displays

When ”ENTER” key is pressed the nextmenu follows. It allows user to read the lastfault record.

To perform a function use ”<-” or ”->” key tomove cursor to desired function and press”ENTER” key.

NOTICEIf no key is pressed for 30 seconds, DR2 unitautomatically switches OFF its supply,otherwise it can be switched OFF by pressingEnter key for 1 sec. Power ON button isseparately available on the front facia.

1 DR2: description & operation

Ir: xxx.x A

Iy: xxx.x A

Ib: xxx.x A

Ie: xxx.x A

Comm: OK

Displays value of R phase current

Displays value of Y phase current

Displays value of R phase current

Displays value of Earth current

Displays Nominal frequency of DPX1Freq: xx Hz

Displays communication status with DPX1

DR2

2 AMTNoT220-02 revision: 00

1.4 LED

On the front panel, there are two LEDs. Theirfunctions are indicated by the appropriateinscriptions along with them. When there is ahealthy communication going between DR2 &DPX1, COMM LED gives the flashingindication.

Battery LOW indication will start flashing assoon as the battery voltage level will dip downto required restraining level.

1.5 Slave Address Configuration

DR2 slave address configuration is availableto match it with DPX1. User can select slaveaddress from 1 to 32 to communicate it withDPX1.

DR2

AMTNoT220-02 revision: 00 3

2.1 Menu Frames

MENU DISPLAY DESCRIPTION

Menu 1Default Page (Running Parameters)

Ir[A]

Phase CurrentIy[A]

Ib[A]

Ie[A]

<COMM> Communication

<TCOUNT> Trip counter

<FREQ> Frequency

Menu 2(Pressing Enter Key)

<F_MENU> Fault 1

<RTC> Real time clock

<SL.ADD> Slave address

<TC_RST> Trip counter reset

<CT RTO> CT ratio

<CH PWD> Change password

BACK->

Menu 3(Pressing Enter Key on

FLT2 Selection)

# F_MENU #

Ir[A]XXXX.XX

Fault Phase Current

Iy[A]XXXX.XX

Ib[A]XXXX.XX

Ie[A]XXXX.XX

FELEMENT

TRIP_PH Trip Phase R, Y, B, E

HR:MMX:X

Hour minute

Sec:mSX:X

Second, Millisecond

<DATE>X/X/X

Date

BACK->

2 Description of Viewing/Editable

Menu of HMI

DR2

4 AMTNoT220-02 revision: 00

Menu 4(Pressing Enter Key on

E_RTC Selection)

# E_RTC #

HOURXX

MINXX

SECXX

DATEXX

MONTHXX

YEARXX

BACK->

Menu 5(Pressing Enter Key on

SL.ADD Selection)

# SL.ADD #

X.X Slave address setting

BACK->

Menu 6(Pressing Enter Key on

TC_RST Selection)

# TC_RST #

NO Trip counter reset

BACK->

Menu 7(Pressing Enter Key on

CT RTO Selection)

# CT RTO #

X CT ratio setting

BACK->

Menu 8(Pressing Enter Key on

CHG PSWD Selection)

# CH PWD #

ENTR PWD

E.NEWPED

ReEntPWD Change password

SUCCESSPWD CHG

2.2 How to replace Battery

� Step 1 � Step 2 � Step 3

DR2

AMTNoT220-02 revision: 00 5

� Step 4

NOTICE� Step 5

RED Color wire towards PCB edge facing.

2.3 Front HDMI Description

No Legend Function

1 LCD Display8x2 Alphanumeric LCD for viewing all the setting, measuring values as well as thefault data of DPX-1

2 ENTER Enter button for submenu / 1sec long press for switching OFF

3 < LCD Up Scroll / Decrement Button

4 BAT LOW Battery Low Indication LED

5 ON On Switch

6 COM Flashing LED for healthy communication with DPX-1

7 > LCD Down Scroll / Increment Button

DR2

6 AMTNoT220-02 revision: 00

2.4 Terminal Details

Terminal No. Description

1 x

2 GND for DPX1

3 +12V for DPX1

4 MODBUS COMM (P1/+ve)

5 MODBUS COMM (N1/-ve)

6 x

7, 8, 9, 10, 11, 12 x

2.5 Battery Voltage

Rated Battery Voltage : Non chargeable / Replaceable through draw out unit +11 VDC / 1.2 Ah

NOTICEDR2 is a battery operated device so it is notrecommended for continuous monitoring ofDPX1. It will automatically switch off its powersupply, if no key is pressed for 1 minute.Battery Low Indication lamp is available onfront end. SMPS supply based DR1, is meantfor continuous monitoring of DPX1.

DR2

AMTNoT220-02 revision: 00 7

3 Notes

If you have any comments on the use of this document or on the use of the equipment and services that are described in it, please sendus your remarks, suggestions and wishes to:

SCHNEIDER ELECTRIC INFRASTRUCTURE LIMITEDInfrastructure Business

Medium Voltage Building, Milestone -87 Vadodara Halol HighwayKotambi, P.O Jarod, Vadodara-391510

Tel: (091) 2668 664040

Schneider Electric Energy France

35, rue Joseph Monier

CS 30323

F - 92506 Rueil-Malmaison Cedex

RCS Nanterre 511 746 356

Capital social 6 909 620 €

www.schneider-electric.com

AMTNoT220-02 revision: 00

As standards, specifications and designs change from time to time, please ask forconfirmation of the information given in this publication.

Design: Schneider Electric

Photos: Schneider Electric

05-2012

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