857 Protection System for Feeder and Motor Protection...

857 Protection System for Feeder and Motor Protection, Bulletin 857, Series ACatalog Number 857-QS001B-EN-P

Quick StartOriginal Instructions

Important User Information

Read this document and the documents listed in the additional resources section about installation, configuration, and operation of this equipment before you install, configure, operate, or maintain this product. Users are required to familiarize themselves with installation and wiring instructions in addition to requirements of all applicable codes, laws, and standards.

Activities including installation, adjustments, putting into service, use, assembly, disassembly, and maintenance are required to be carried out by suitably trained personnel in accordance with applicable code of practice.

If this equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired.

In no event will Rockwell Automation, Inc. be responsible or liable for indirect or consequential damages resulting from the use or application of this equipment.

The examples and diagrams in this manual are included solely for illustrative purposes. Because of the many variables and requirements associated with any particular installation, Rockwell Automation, Inc. cannot assume responsibility or liability for actual use based on the examples and diagrams.

No patent liability is assumed by Rockwell Automation, Inc. with respect to use of information, circuits, equipment, or software described in this manual.

Reproduction of the contents of this manual, in whole or in part, without written permission of Rockwell Automation, Inc., is prohibited

Throughout this manual, when necessary, we use notes to make you aware of safety considerations.

Labels may also be on or inside the equipment to provide specific precautions.

WARNING: Identifies information about practices or circumstances that can cause an explosion in a hazardous environment, which may lead to personal injury or death, property damage, or economic loss.

ATTENTION: Identifies information about practices or circumstances that can lead to personal injury or death, property damage, or economic loss. Attentions help you identify a hazard, avoid a hazard, and recognize the consequence.

IMPORTANT Identifies information that is critical for successful application and understanding of the product.

SHOCK HAZARD: Labels may be on or inside the equipment, for example, a drive or motor, to alert people that dangerous voltage may be present.

BURN HAZARD: Labels may be on or inside the equipment, for example, a drive or motor, to alert people that surfaces may reach dangerous temperatures.

ARC FLASH HAZARD: Labels may be on or inside the equipment, for example, a motor control center, to alert people to potential Arc Flash. Arc Flash will cause severe injury or death. Wear proper Personal Protective Equipment (PPE). Follow ALL Regulatory requirements for safe work practices and for Personal Protective Equipment (PPE).

Table of Contents

Preface Who Should Use This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Supported Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Additional Resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Chapter 1Overview SetPointPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

User Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7Firmware Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Operating Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Protection Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

General Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Before Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Catalog Number Explanation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Chapter 2Mounting and Wiring Instructions

Mounting Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Measuring and Control Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . 15Voltage Measurement Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Chapter 3Local Panel User Interface Protection System Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Menu Navigation and Pointers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22Communication Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24Digital and Virtual Inputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Virtual Inputs and Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26Output Matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Chapter 4Installation Step 1: Gather Required Information . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Step 2: Review Required Information . . . . . . . . . . . . . . . . . . . . . . . . . . . 29Step 3: Validate the 857 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Configuring the Protection System. . . . . . . . . . . . . . . . . . . . . . . . . . 30Step 4: Power Up, Configuring the Protection System and Verifying Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31Step 5: Configuring the SetPointPS Software Tool . . . . . . . . . . . . . . 32Step 6: Configuring the Protection System Using SetPointPS . . . . . 33

Set the Valid Protection Stages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35Set the Current Scaling Parameter Using the Front Panel . . . . . 36

Rockwell Automation Publication 857-QS001B-EN-P - April 2017 3

Table of Contents

Notes:

4 Rockwell Automation Publication 857-QS001B-EN-P - April 2017

Preface

This publication guides you through the 6 basic steps that are required to start up your Allen-Bradley® 857 Protection System for the first time for simple applications. The comprehensive protection functions of the Protection System make it ideal for utility, industrial, marine, and offshore power distribution applications. Because the Protection System is designed for global applications, it includes both ANSI IEEE and IEC protective function numbers and symbology.

Who Should Use This Manual This manual is intended for qualified personnel who understand the hazards that are associated with electromechanical equipment installations.

Personnel must:• Follow all applicable local, national, and/or international electrical

codes. • Be able to program and operate motor/feeder protection devices of this

type and style. • Have an understanding of the appropriate parameter settings and their

protective functions that are related to the load being controlled and protected.

• Have access to the user manual 857- UM001 and be familiar with the characteristics of the device.

Equipment The following equipment requirements must be followed and applied to use this quick start procedure.

• The 857 Protection System is in a standalone installation. • No load sharing or multiple motors on one Protection System. • Access to an approved programming cable – catalog number

857VX003-3.• A computer with an available USB port and a USB to RS-232 serial port

converter. Such as the Allen-Bradley 9300-USBS USB to Serial Adapter.• The latest available version of the SetPointPS programming and

commissioning software tool that is downloaded and installed on a portable computer. The SetPointPS software is available at www.rockwellautomation.com.

Supported Applications This publication is intended for use with 857 protection systems that are used on typical applications. For example, induction machines, motors controlling fans, pumps, compressors, conveyors, or feeder type loads such as transformer and capacitor bank protection.


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Preface

Installation The content of this manual assumes that the 857 Protection System is installed according to Rockwell Automation® guidelines and includes the following.

• The Protection System installation meets mechanical requirements for orientation, cooling and mounting hardware.

• The Protection System installation meets environmental requirements for surrounding air temperature, ambient atmosphere, and the enclosure rating.

• The Protection System installation meets electrical requirements for AC or DC supply, wiring and grounding, and the appropriate application of overload and short circuit protection. Based on the switching technology for the load (breaker versus contactor).

• The Protection System installation is compliant with all applicable local, national, and international codes, standards, and requirements.

Additional Resources

These documents contain additional information concerning related products from Rockwell Automation.

You can view or download publications athttp://www.rockwellautomation.com/global/literature-library/overview.page. For paper copies of technical documentation, contact your local Allen-Bradley distributor or Rockwell Automation sales representative.

IMPORTANT This guide does not replace the User Manual, publication 857-UM001, and is intended for qualified service personnel responsible for installing and servicing these devices. You must have previous experience with and a basic understanding of electrical terminology, configuration procedures, required equipment, and safety precautions. See the SetPointPS Configuration Software Programming Manual 857-PM001 for more information.

Resource Description

Industrial Automation Wiring and Grounding Guidelines, publication 1770-4.1

Provides general guidelines for installing a Rockwell Automation® industrial system.

Product Certifications website, http://www.rockwellautomation.com/global/certification/overview.page

Provides declarations of conformity, certificates, and other certification details.



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http://www.rockwellautomation.com/global/certification/overview.page?

http://www.rockwellautomation.com/global/certification/overview.page?

http://www.rockwellautomation.com/literature/

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Chapter 1

Overview

All necessary steps must be taken to assure that each application and use meets all performance and safety requirements. All applicable laws, regulations, codes, and standards must also be followed.

The illustrations, charts, sample programs, and layout examples that are shown in this guide are intended solely for purposes of example. There are many variables and requirements that are associated with any particular installation. Rockwell Automation® does not assume responsibility or liability (to include intellectual property liability) for actual use that is based on the examples that are shown in this publication.

Important differences between solid-state equipment and electromechanical devices are discussed in Rockwell Automation SGI-1.1, Safety Guidelines for the Application, Installation and Maintenance of Solid-State Control. See your local Allen-Bradley distributor for a copy. These differences must be considered when products are applied such as the ones described in this publication.

SetPointPS SetPointPS is a relay configuration tool for Rockwell Automation 857 Protection Systems. All configurations are made with a user-friendly graphical interface and the created documents can be printed and saved. SetPointPS can read all information directly from the device. It can be obtained free of charge at www.rockwellautomation.com.

It is possible to read and evaluate disturbance recordings from Rockwell Automation 857 and 865 Protection Systems. The built-in evaluator uses standard COMTRADE files for saving the records. See publication 857-PM001.

User Interface The relay is controlled in three ways: • Locally with the push button on the relay front panel, see Protection

System Front Panel on page 21).• Locally by using a personal computer that is connected to the serial port

on the front panel or on the rear panel of the relay (both cannot be used simultaneously).

• By remote control over at least one of the communication ports on the relay rear panel.


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Chapter 1 Overview

Firmware Compliance

The Settings files between major revisions of firmware are not compatible with other major versions. This statement is true of products with version 10.xxx firmware, version 12.xxx firmware, or higher.

Operating Safety

Protection Functions

The comprehensive protection functions of the relay (Table 1) make it ideal for utility, industrial, marine, and offshore power distribution applications. Because the 857 Protection System is designed for global applications, it includes both ANSI IEEE and IEC protective function numbers and symbology.

IMPORTANT Do not load Settings file between relays of different version numbers.

ATTENTION: The terminals on the rear panel of the relay can carry dangerous voltages, even if the auxiliary voltage is switched off. Do not place a live current transformer secondary-circuit in an open circuit condition. The disconnection of a live circuit can cause dangerous voltages! Any operational measures must be conducted according to national and local directives and instructions.

IMPORTANT Read the operation instructions before performing any operational measures.

Table 1 - List of Protection Functions

IEEE/ ANSI Code IEC Symbol Function Name Note

25 df/dv Synchrocheck

27 U<U<<U<<<

Undervoltage protection

32 P<P<<

Reverse power protection

37 I< Undercurrent protection

46R I2> Current unbalance protection - Feeder protective mode

Only available when application mode is feeder protection.

46 I2> Current unbalance protection - Motor protective mode

Only available when application mode is motor protection.

47 I2>> Phase reversal / incorrect phase sequence protection Only available when application mode is motor protection.


Overview Chapter 1

48 Ist> Stall protection Only available when application mode is motor protection.

49 T> Thermal overload protection

50ARC ArcI> Optional arc fault-protection

50BF CBFP Circuit-breaker failure protection

50N/51N50G/51G50GS/51GS

I0>I0>>I0>>> I0>>>>

Earth-fault protection External connection method and protective settings define protection type.

50NARC ArcI01>ArcI02>

Optional earth-fault protection

50NC/51INC I0CAP Capacitor-bank unbalance protection

50/51 I>I>>I>>>

Overcurrent protection

59 U>U>>U>>>

Overvoltage protection

59N U0>U0>>

Residual voltage protection

66 N> Frequent start protection Only available when application mode is motor protection.

67 Iφ>Iφ>>Iφ>>>Iφ>>>>

Directional overcurrent protection

67N I0φ>I0φ>>

Directional earth-fault protection

67NI IOint> Directional transient intermittent earth-fault protection

68F2 Uf2> Magnetizing In Rush

68F5 Uf5> Transformer over excitation, 2nd harmonic

81 f><f>><<

Frequency protection, 5th harmonic

81L f<f<<

Underfrequency protection

81R df/dt Rate of change of frequency (ROCOF) protection

86 Lockout All protective elements can be set for lockout control.

99 Prg1…8 Programmable stages

Table 1 - List of Protection Functions (continued)

IEEE/ ANSI Code IEC Symbol Function Name Note


Chapter 1 Overview

General Precautions Before Installation

WARNING: Have only qualified personnel service this equipment. If you are not qualified to service this equipment, you can injure yourself or others, or cause equipment damage.• Equipment components are sensitive to electrostatic discharge (ESD).

Undetectable permanent damage can result if you do not use proper ESD procedures. Ground yourself, your work surface, and this equipment before removing any cover from this equipment.

• Disconnect or de-energize all external connections before opening this device. Contact with hazardous voltages and currents inside this device can cause electrical shock that can result in injury or death.

• This document is to be utilized as a startup or a commissioning document only. Full understanding of the relay protective functions is required before any unit is placed in full protective mode.See User Manual 857-UM001 for further details on the Bulletin 857 Protection Relay.



Overview Chapter 1

Catalog Number Explanation

a

Nom Phase Current (A) / Nom DI7-28 Activation Voltage

3 1 A/5 A / 24V

6 1 A/5 A / 110V

7 1 A/5 A / 220V

bNom Earth-fault Current I/O1 and I/O2 [A]

C 1 A and 5 A

D 0.2 A and 1 A

cAdditional I/O (X8 Terminal)

6 None

7 Eight standard inputs, four TCS Hybrid inputs/outputs

8 Ten outputs

9 Eight standard inputs and four outputs(1)

(1) Some options not UL Listed. Check with your Rockwell Automation® representative.

dSupply Voltage [V]

A 40…265Vac/dc

B 18…36 Vdc

C 40…265Vac/dc + Arc Protection Option

D 18…36 Vdc + Arc Protection Option

E 40…265Vac/dc + DI19, DI20 + arc channel, Optional

F 18…36 Vdc + DI19, DI20 + arc channel, Optional

eOptional Hardware (Communication port 1)

Code Description

A TTL/RS-232 (VCM TTL)

B Plastic/Plastic serial fiber interface (VCM FIBRE PP)

C N/A

D RS-485 interface (4-wire, VCM 485-4)

E Glass/Glass dual serial fiber interface for 857-RAD (857-VCMFIBRE GG)(1)

(1) Required for connection to 857-RAD Enhanced RTD Scanner. Only available in this location.

F Rx Plastic/Tx Glass serial fiber interface (VCM FIBRE PG)

G Rx Glass/Tx Plastic serial fiber interface (VCM FIBRE GP)

I RJ45 connection (RS-232, VCM 232)

M ST 100-Mbps Ethernet dual fiber interface inc. IEC 61850

N RTD glass fiber interface for 857-RAA (857-VCMRTD)(2)

(2) Required for connection to the 857-RAA scanner only.

fOptional Hardware (Communication port 2)

A None

C RJ45 connection (RS-232, 857-VCM232)

D RS-485 interface (2-wire, 857-VCM485-2)

L Built-in RJ45 10 Mbps Ethernet interface(1)

M Built-in RJ45 10 Mbps Ethernet interface inc. IEC 61850(1)

(1) Cannot order in combination with the following optional Communication PORT 1: (M) ST 100-Mbps Ethernet fiber interface with IEC 61850.

N RTD interface for 857-RAA (Glass fiber, 857-VCMRTD)(2)

(2) Required for connection to the 857-RAA scanner only.

gIngress Protection Rating

- IP30 (Standard)

I IP54 (Optional)

C Ip30 (standard case) with conformal coated boards

K IP54 (dust-tight case) with conformal coated boards

Position

1 2 3 4 5 6 7

857 – 3 C 6 A A A –__a b c d e f g


Chapter 1 Overview

Notes:


Chapter 2

Mounting and Wiring Instructions

Mounting Instructions To mount the Allen-Bradley® 857 Protection System, follow the sequence of steps as they are outlined in the Figure 1. Figure 2 shows the dimensions of the unit.

Figure 1 - Mounting Instructions

1.0-10mm

193

139

24

3

41

2a 2b

i


Chapter 2 Mounting and Wiring Instructions

Figure 2 - Dimensions

137 mm (5.4 in.)

28 mm (1.1 in.)

181 mm (7.13 in.)

27 mm (1.07 in.)

1.0…10.0 mm (0.04…0.4 in.)

190 mm (7.48 in.)

150 mm (5.9 in.)

208 mm (8.19 in.)

21 mm (0.83 in.) B A

Collar Part Number A B

857-VYX076 40 mm (1.57 in.) 169 mm (6.65 in.)

857-VYX077 60 mm (2.36 in.) 149 mm (5.87 in.)

857-VYX233 100 mm (3.94 in.) 109 mm (4.29 in.)

Optional Projection Mounting Collar


Mounting and Wiring Instructions Chapter 2

Measuring and Control Connections

Allen-Bradley 857 Protection Relay is connected to the protected object through these measuring and control connections.

The following terminal connections are shown in this quick start:• Terminal X1 Left Side on page 16• Terminal X1 Right Side on page 16• Terminal X2 on page 16• Terminal X3 on page 17• Terminal X7 on page 17• Terminal X8 Model 857-3C7 on page 18• Terminal X8 Model 857-3C8 on page 19• Terminal X6 on page 19 • Terminal X6 with DI19/DI20 Option on page 20

Figure 3 - Example of Allen-Bradley 857 Back Panel Communication Connection

IMPORTANT Some cards configurations are optional

IMPORTANT Settings that are associated with options or accessories, such as RTD scanners require the option or accessory to be installed or connected before being made available for configuration

123456789101112131415161718

X3 X1

REMOTE

(TTL)

1

3

5

7

9

11

13

15

17

19

2

4

6

8

10

12

14

16

18

20

X6

X2

123456789101112131415161718

X7

1234567891011

12345678910111213141516171819

20

X8

Communication Option 1 Communication Option 2



Table 2 - Terminal X1 Left Side

Table 3 - Terminal X1 Right Side

Table 4 - Terminal X2

No: Symbol Description

1 IL1(S1) Phase current L1 (S1)



7 Io1/1A(S1) Residual current I/O1(S1)

9 Io2/5A(S1) Residual current I/O2(S1)

11 Ua See Voltage Measurement Mode on page 20

13 Ub See Voltage Measurement Mode on page 20

15 -- --

17 Uc See Voltage Measurement Mode on page 20

19 -- --





8 Io1/1A(S2) Residual current I/O1 (S2)

10 Io2/5A(S2) Residual current I/O2 (S2)

12 Ua See Voltage Measurement Mode on page 20

14 Ub See Voltage Measurement Mode on page 20

16 -- --

18 Uc See Voltage Measurement Mode on page 20

20 -- --


1 A5 Alarm relay 5

2 A5 Alarm relay 5

3 A4 Alarm relay 4

4 A4 Alarm relay 4

5 A3 Alarm relay 3

6 A3 Alarm relay 3

7 A2 Alarm relay 2

8 A2 Alarm relay 2

9 IF COM Internal fault relay, common connector

10 IF NC Internal fault relay, normal closed connector

11 IF NO Internal fault relay, normal open connector






1 48V Internal control voltage for digital inputs 1…6

2 DI1 Digital input 1






8 -- --

9 A1 COM Alarm relay 1, common connector

10 A1 NO Alarm relay 1, normal open connector

11 A1 NC Alarm relay 1, normal closed connector

12 T2 Trip relay 2

13 T2 Trip relay 2

14 T1 Trip relay 1

15 T1 Trip relay 1

16 -- --

17 Uaux Auxiliary voltage

18 Uaux Auxiliary voltage








7 COM1 Common potential of digital inputs 7…12





12 D117 Digital input 17



15 T4 Trip relay 4

16 T4 Trip relay 4

17 T3 Trip relay 3

18 T3 Trip relay 3



Table 7 - Terminal X8 Model 857-3C7 No: Symbol Description













13 T8 Trip relay 8 / Digital input 32










Table 8 - Terminal X8 Model 857-3C8


Available only when arc flash option is selected.


1 DI21 Trip relay 14


3 COM1 Trip relay 13



















1 BI External arc light input

2 BO Arc light output

3 COM Common connector of arc light I/O

4 S1>+ Arc sensor 1, positive connector (1)

(1) Arc sensor itself is polarity free.

5 S1>– Arc sensor 1, negative connector (1)

6 S2>+ Arc sensor 2, positive connector (1)

7 S2>– Arc sensor 2, negative connector (1)



Table 10 - Terminal X6 with DI19/DI20 Option

Voltage Measurement Mode The 857 Protection System can be connected to line-to-line or phase-to-ground voltages. The connection is dependent on the application and available voltage transformers. Set the configuration parameter “Voltage measurement mode” according to the used connection.

Table 11 - Available Voltage Modes

The overvoltage protection is based on the line-to-line voltage regardless of the measurement mode.

The wiring of the secondary circuits of voltage transformers to the device terminal depends on the selected voltage-measuring mode.






5 — —

6 S1>+ Arc sensor 1, positive connector(1)

(1) Arc sensor itself is polarity free.

7 S1>– Arc sensor 1, negative connector(1)

Mode Description

“2LL+U0” The device is connected to line-to-line voltages U12 (X1-11 and X1-12) and U23 (X1-13 and X1-14). Also to zero sequence voltage U0 (X1-17 and X1-18). The phase-to-ground voltages are calculated. The network must use only three wires. Any neutral wire must not exist (two PTs/VTs in open Delta).

“3LN” The device is connected to phase-to-ground voltages UL1 (X1-11 and X1-12), UL2 (X1-13 and X1-14), and UL3 (X1-17 and X1-18). The zero sequence voltage is calculated. A neutral wire can exist (three PTs/VTs “Y” connected).

“1LL+U0/LLy” This mode is used with the Synchrocheck function. See Chapter 3, Synchrocheck Protection (25) of the user guide for more information.

2LL/LLy” This mode is used with the Synchrocheck function. See Chapter 3, Synchrocheck Protection (25) of the user guide for more information.

“LL/LLy/LLz” This mode is used with the Synchrocheck function. See Chapter 3, Synchrocheck Protection (25) of the user guide for more information.





Chapter 3

Local Panel User Interface

Protection System Front Panel

Figure 4 shows the front panel of the Allen-Bradley® 857 Protection System and the location of the user interface elements that are used for local control.

Figure 4 - Front Panel of Allen-Bradley 857 Protection System

1. LCD dot-matrix display.

2. Keypad.

3. Status indicators.

4. RS-232 serial communication port for connection to a personal computer.

The Display

The back lit 128x64 LCD dot-matrix display can show 21 characters per row and eight rows simultaneously. The display shows:

• The single-line diagram of the relay with the object status, measurement values, identification, and so forth (Figure 7).

• The configuration and parameterization values of the relay (Figure 8).

To turn on the backlight, press any key on the front HMI of the relay.

857


Chapter 3 Local Panel User Interface

The Keypad

The keypad is used to control objects and switches on the single-line diagram display. To navigate in the menu, and set the required parameter values, use the keypad and the guidance that is given in the display.

Figure 5 - Keys on the Keypad

The keypad has these keys and functions:

Menu Navigation and Pointers

Use the up and down arrow keys to move up and down in the main menu (see Figure 5). The active main menu option is indicated with a cursor. The options in the main menu items are abbreviations, for example Evnt = events.

Figure 6 - Active Menu Options

1 Enter and confirmation key (enter)

2 Cancel key (cancel)

3 Up/Down [Increase/Decrease] arrow keys (up/down)

4 Keys to select submenus [select a digit in a numerical value] (left/right)

5 Additional information key (info)

TIP The term, which is used for the keys in this manual, is inside the rounded brackets.

After any selection, the arrow symbols show the possible navigating directions.

The name of the active submenu and a possible ANSI code of the selected function.

The measured and set parameters.

The measured and set values.


Local Panel User Interface Chapter 3

Figure 7 - Sections of the LCD Matrix Display

Figure 8 - Sections of the LCD Matrix Display

1 Freely configurable single-line diagram.

2 Five controllable objects.

3 Six object statuses.

4 Location identification.

5 Local/Remote selection.

6 Auto-reclose on/off selection (if applicable).

7 Freely selectable measurement values (max. six values).

8 Main menu column.

9 The heading of the active menu.

10 The cursor of the main menu.

11 Possible navigation directions.

12 Measured/setting parameter.

13 Measured/set value.



Communication Ports The 857 has three standard communication ports, “Remote”, “Local” and “Extension”. A fourth optional Ethernet port is available. The Ethernet port can also support the IEC 61850 standard if the Protection System is ordered with this capability. A maximum of two communications interface options can be operating at any given time. Communication modules are specified at the time of order placement and are not exchanged in the field or replaceable.

These ports must be configured for the specific communications interface and protocol being utilized as the main means of communicating to the Protection System.

The front communications connection is used for connection to a personal computer. The connection is used for setting the Protection System parameters, and for the interrogation of information from the Protection System, including disturbance recordings. The front panel connection is associated only with the Local Port settings in the Protection System.

For setting the Protection System parameters by using the SetPointPS software through the front connection, a special cable, part number 857-VX003, is required for connection to a computer.

Once this cable is connected to the front of the Protection System, it associates the connection of the personal computer to the Local Port on the Protection System. This port must be configured in coordination with the settings of the SetPointPS software, the personal computer serial port (if equipped), or a USB to serial port adapter.

The default settings in the Protection System, for this communications method are shown in the following table.

Verify that these communications settings are the same for the personal computer serial or USB to Serial converters.

You can verify these settings in the Protection System by pushing and/or holding the DOWN button until you reach the “BUS” location.

Push the RIGHT arrow button to scroll to the right to interrogate the Local Port settings.

Description Default Setting

Communication rate 38,400

Parity N

Stop Bits 1



Digital and Virtual Inputs There are up to 20 digital inputs available for control purposes (varies by model). The polarity – normal open (NO) / normal closed (NC) – and an operational delay can be configured according to the application. These input signals are available for use within the output matrix, block matrix, programmable logic, and so on. 120V or 220V AC is used to activate digital input 7…20. Use the SetPointPS software to select the AC Coupling Mode.

The contacts that are connected to digital inputs DI1…DI6 must be dry. These inputs use the common internal 48-Vdc wetting-voltage from terminal X3:1, only.

Label and description texts can be edited with SetPointPS according to the application. Labels are the short parameter names that are used on the local panel and descriptions are the longer names that are used within SetPointPS software.

Table 12 - Summary of Digital Inputs

An additional input card is available as an option. The additional option card is located in the X8 location and has the same ratings as the card in X7.

DI Terminal Operating Voltage Availability

- X3:1 48V DC supply for DI1…6 Always available

1 X3:2 Internal 48V DC

2 X3:3

3 X3:4

4 X3:5

5 X3:6

6 X3:7

7 X7:1 External 18…265V DC50…250 V AC8 X7:2

9 X7:3

10 X7:4

11 X7:5

12 X7:6

- X7:7 Common for DI7…12

13 X7:8 External 18…265V DC50…250 V AC14 X7:9

15 X7:10

16 X7:11

17 X7:12

18 X7:13

- X7:14 Common for DI13…17

19 X6:1…2 External 18…265V DC50…250V AC

ARC card with 2 DIs

20 X6:3…4



Table 13 - Digital Input Threshold Voltages

The digital input signals can be used for blocking and control signals for the output relays. An additional input card is available as an option. The additional option card is located in the X8 location and has the same ratings as the card in X7.

Virtual Inputs and Outputs

There are four virtual inputs and six virtual outputs. The four virtual inputs act like normal digital inputs. The state of the virtual input can be changed through any communication bus and from SetPointPS. These virtual inputs are used through the communication port or within any on board programmed logic program. They can be used for applications such as status monitoring for remote starting or as a process interlock or for status reporting. They can be mapped in both the Output Matrix and the Blocking Matrix within the Protection System.

The six virtual outputs act like output relays. There are no physical contacts unless the virtual output is linked in an Alarm or Trip relay contact by way of the Output Matrix. Virtual outputs are shown in the output matrix and the block matrix. Virtual outputs can be used through the communication port or within any on board programmed logic program. They can be used for applications such as initiating the functions for remote starting or for the initiating of process controls when mapped to an output relay. They can be mapped in both the Output Matrix and the Blocking Matrix within the Protection System.

Output Matrix

The output matrix connects, the output signals of the various protection stages, digital inputs, and logic outputs to various digital output relays or status indicators. The output matrix can also connect other internal signals to the output relays, front-panel status indicators, virtual outputs, and so on.

There are two status indicators named “Alarm” and “Trip” on the front panel that is mapped within the Output Matrix. There are also three general-purpose status indicators – “A”, “B” and “C” – available for customer-specific indications. In addition, the triggering of the disturbance recorder (DR) and virtual outputs are configurable in the output matrix. See an example in Figure 9.

Common input

Input group Wetting-voltage

On Off

X7:7 X7: 1…6 (DI 7…12) ≥ 18V DC or ≥ 50V AC ≤ 10V DC or ≤ 5V AC

X7:14 X7: 8…13 (DI 13…18) ≥ 18V DC or ≥ 50V AC ≤ 10 Vdc or ≤ 5V AC



An output relay or status indicator can be configured as latched or non-latched. A non-latched relay or status indicator follows the condition of the controlling signal. A latched relay or status indicator remains activated although the controlling signal releases state can change after an initial activation. The output relay or status indicator remains in that state until it is released either from a front panel release command or via the SetPointPS latch release command.

There is a common “release latched” signal to release all latched relays. This release signal resets all latched output relays and indicators. Use a digital input, a keypad, or by communication.to give the reset signal. Any digital input can be used for resetting. The selection of the input is done with the SetPointPS software under the menu “Release output matrix latches”. Under the same menu, the “Release latches” parameter can be used for resetting. The enter key releases the latches from the front panel.

Figure 9 - Typical Output Matrix (Varies by Model)OUTPUT MATRIX

ConnectedConnected and latched

T1 T2 A1 A2 A3 A4 A5 A B C DR VO1TripAlarm

Output Relay

Front panel status indicator, the internal disturbance recorder, or Virtual Outputs

Motor StartMotor Running

I> StartI> Trip

I>> StartI>> Trip

I>>> StartI>>> Trip



Notes:


Chapter 4

Installation

Step 1: Gather Required Information

Before you apply power to the 857 Protection System for the first time, you must obtain the specific information about your application.

• Selection of the appropriate protective mode for the 857 Protection System: Motor or Feeder protective mode.

• The motor (feeder) nameplate data to determine your protective functions and I/O.

• Obtain the current transformer and, if applied, voltage transformer data. • The wiring configuration to the input and output relays on the

Protection System to determine the alarm and trip function annunciation.

Step 2: Review Required Information

Review the minimum required information from Step 1 to verify the requirements for the protective parameters before powering up your Protection System. The required data and protective elements that are selected varies depending on the connected load and the application mode selected.

This minimum data is critical for the selection of the proper minimum initial protective settings in the Protection System.

Table 14 - Typical Minimum Motor-protection Applications Data

Motor/ Device ID Motor 33

Motor Full Load Current For example, 80 A

Motor Locked Rotor Current 490 A

Current Transformer Primary amps 100

Current Transformer Secondary amps 5

Voltage Transformer Primary Voltage 4160

Voltage Transformer Secondary Voltage 120

Ground Fault CT Primary amps 100

Ground Fault CT Secondary amps 1


Chapter 4 Installation

Table 15 - Typical Feeder Protection Applications

Step 3: Validate the 857 Installation

1. Thoroughly inspect each of your Protection System installations before power is applied for the first time, especially if you did not personally perform the installation tasks.

2. Verify that each Protection System is ready to be energized before you get to Step 4: Power Up, Configuring the Protection System and Verifying Operation.

3. Identify which Protection System you have.

There are some important differences between Protection System products that must be considered in subsequent steps. To determine what type of Protection System you have, use the configuration menu from the front of the Protection System to look under Device Info sub menu.

4. Evaluate and note the appropriate protective elements in each Protection System and the setting values for each specific load and application.

See Table 1 on page 8 for available protective elements.

5. Visually inspect the wiring connections to each Protection System. Verify that the correct wires are connected to the appropriate input and output terminals.

See Measuring and Control Connections on page 15 to know where these connections are made.

6. Apply the AC or DC power source to terminals 17 and 18 on the X3 terminal block on the left rear of the Protection System.

Configuring the Protection System

To configure the Protection System, you must determine which inputs and output relays are to be used within the system control circuit. Typically there are a total of nine output relays, which are used as Trip or Alarm contacts. The number of digital inputs vary by model type.

Feeder ID Feeder 8

Full Load Current For example, 73 A

Current Transformer Primary 100

Current Transformer Secondary amps 5

Voltage Transformer Primary Voltage 4160

Voltage Transformer Secondary Voltage 120

Ground Fault CT Primary amps 100

Ground Fault CT Secondary amps 1


Installation Chapter 4

Where higher (current) switching duty is required, such as breaker trip coils, relays T1-T4 can be applied within the control circuit. Typically T1 is applied as the main Trip output relay. The factory default settings apply all protective element trip outputs to T1. Alarm functions are typically wired to output relays A1-A5. However, any output relay can be configured as a trip or alarm device via the Output Matrix.

Digital Inputs from 7…18 require a wetting voltage of between 18…265V DC and 50…250V AC. Digital inputs from 1…6 are internally wetted using an isolated 48V source from within the Protection System.

Step 4: Power Up, Configuring the Protection System and Verifying Operation

In this step, you must be familiar with the use the entry buttons on the front of the Protection System or the SetPointPS software. For additional information, see the Bulletin 857 Protection System User Manual 857-UM001 or refer to the SetPointPS Software Programming Manual, 857-PM001.

In this step you will:• Power up each of your Protection Systems.• Configure each Protection System by entering the minimum key

parameter values.• Review the I/O configuration that is related to digital inputs and output

relays.

1. Connect a personal computer to the Protection System, by using an 857-VX003 communications cable and by way of the front panel RS-232 communications port.

2. Apply AC or DC power to the Protection System.

When power is first applied and the Protection System has completed its power on confidence tests, the following screen appears. The screen could vary slightly between different firmware revisions or if the relay was previously programmed.

3. Review the state of the colored status indicators on the front of the Protection System. The Protection System IED has eight status indicators on the front panel.

Power Green represents the units general status (POWER)

Error Red indicates an internal hardware malfunction (Error)

Comm Amber indicates when communication is established to the 857.

Alarm Amber indicates that a protection element is signaling an alarm condition (Alarm).

Trip Red indicates that a protection element has reached a trip level.

A, B, and C Programmable and available for customer use. Amber indicates it is in use.






Step 5: Configuring the SetPointPS Software Tool

SetPointPS software is a tool that is used to set and configure the Protection System IEDs. SetPointPS has a graphical interface, and the created documents can be saved and printed for later use.

1. Connect the serial cable between the USB to Serial converter to the Protection System and plug the USB cable into the personal computer.

If your computer is equipped with a serial port, the USB to serial converter is not necessary but is still recommended for the best performance.

2. Open the Device Manager on the personal computer and check the USB Serial Port number (COM) for the IED.

3. Open the SetPointPS software tool that is used for setting and configuration of your Protection System by using a personal computer.

4. On the SetPointPS top menu, select Settings: Communication Settings.

5. Select the correct port that is associated with the USB to Serial converter, under the Port area. Typically, the port is the last one on the list.

6. Define the SetPointPS communication settings.

7. The default communication rate for the front local port on the Protection System is 38,400.

8. Under the Local area, select the corresponding 38,400 speed (bps) from the pull-down list.

9. Click the Apply button.

10. In the SetPointPS menu, select Program Settings.

You can add some levels of program modifications depending on your preferences. The recommended settings are shown in light gray below the selection.

Click the OK button to invoke any changes.

11. To initiate a connection between the SetPointPS software tool and a Protection System, on the SetPointPS top menu line, select the Communication menu.

12. Select Connect Device from the list.

A window opens with status data flowing through the window.

A Device Setup window appears which requires you to enter a password. The default Configurator level password (highest level of control and modification) is 2 or 0002.

13. Enter the password and click Apply.

SetPointPS continues to connect to the device and load of the relay configuration details.



Step 6: Configuring the Protection System Using SetPointPS

Once the connection between the SetPointPS software and the Protection System is established, you can read and modify the data within the device.

1. Define the mode of protection that the relay performs; Motor Protection or Feeder Protection. Make the mode selection in the Application Mode parameter setting of the Device Info screen.

2. Enter the variables associate with the connected load and the control unit that is used to start and stop the load.

3. The fundamental settings that are related to the load and controller characteristics must be entered in the SCALING section of the SetPointPS software.

Figure 10 shows the two variations of the scaling input screens from the SetPointPS software; Motor protective mode and Feeder protective mode. Notice the differences in the first portion of the configure screens. For motor protection, the full load current of the motor must be added. In the Feeder Mode, only the main current transformer details are required. The following data must be entered to provide accurate protection.

If VT/PT inputs are connected to the Protection System for metering, a selection must be made in the Voltage Measurement Mode selection-area.

Motor nom current Motor full load current (for motor protective mode only).

CT primary Rated phase CT primary current ratio, for example, 500 A.

CT secondary Rated phase CT secondary current, for example, 5 A.

VT/PT primary If applied, rated VT/PT primary voltage ratio, for example, 4160V.

VT/PT secondary If applied, rated VT/PT secondary voltage, for example, 120V.

I 01 CT primary Rated value of I 01 Ground Fault CT primary current.

I 01 CT secondary Rated value of I 01 Ground Fault CT secondary current.Rated I 01 input of the relay. 5 A or 1 A, as specified in the order code of the device.

I 02 CT Ground Fault Rated value of I 02 CT Ground Fault primary current.

I 02 CT secondary current Rated value of I 02 CT secondary current.Rated I 02 input of the relay. 5 A, 1 A, or 0.2 A, as specified in the order code of the device.



Typical entries within the Voltage Measurement Mode are: Two open delta VT/PTs setting to be 2LL+U0, 3 VT/PTs in wye setting to be 3LN.

The CT input of the relay, 5 A or 1 A, are specified in the order code of the device. The rated input values are equal to or less than the rated secondary value of the CT.

The rated CT secondary can be greater than the rated input, but the continuous current must be less than four times the rated input. The rated CT secondary can also be less than the rated input, but the measurement accuracy near zero current decreases.

Figure 10 - Scaling Input Screens

4. The factory default protective-element settings within the relay only provide minimal levels of protection.

Motor Protective Mode Feeder Protective Mode

ATTENTION: You must select and configure the appropriate protective elements in relationship to the application mode selected.



Set the Valid Protection Stages

Depending on the application mode that is selected, the default protective settings are automatically selected but not fully configured.

The fundamental protection element selection, which is related to the load and controller characteristics, is selected in the VALID PROTECTION STAGES section of the SetPointPS software. Figure 11 shows a typical summary of the Valid Protective Stages within the Protection System. You can also enable or disable a protective stage by selecting the stages through this screen. Or by going to the individual protection element settings page and enabled or disabled each protection element individually.

Figure 11 - Valid Protective Stages



Set the Current Scaling Parameter Using the Front Panel

1. Press enter to move to the setting state of the desired menu (for example, CONF/CURRENT SCALING).

The Pick text appears in the upper-left part of the display.

2. Press info. Enter the password that is associated with the configuration level by pressing the arrow keys (default value is 0002).

3. Press enter.

4. Press up and down to scroll through the parameters.

A parameter can be set when the background color of the line is black. If the parameter cannot be set, the parameter is framed.

5. Press enter to select the desired parameter (for example Inom).

6. Press up and down to change a parameter value.

If the value contains multiple digits, press left and right to shift from digit to digit, and up and down to change the digits.

7. Press enter to accept a new value.

To leave the parameter value unchanged, exit the edit state by pressing cancel.

Changing the Parameters

IMPORTANT Almost all parameters and settings can be viewed and modified using the front panel interface. Because of the vast selection and modification capabilities of the Protection System, the SetPointPS software tool is recommended for monitoring and configuring the settings within the device.


Publication 857-QS001B-EN-P - April 2017Supersedes Publication 857-QS001A-EN-P - June 2011 Copyright © 2017 Rockwell Automation, Inc. All rights reserved. Printed in Canada.

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