Related Manuals for Allen-Bradley 857
Summary of Contents for Allen-Bradley 857
- Page 1 Quick Start Original Instructions 857 Protection System for Feeder and Motor Protection, Bulletin 857, Series A Catalog Number 857-QS001B-EN-P...
- Page 2 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.
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Page 3: Table Of Contents
Step 2: Review Required Information ......29 Step 3: Validate the 857 Installation ......30 Configuring the Protection System. - Page 4 Table of Contents Notes: Rockwell Automation Publication 857-QS001B-EN-P - April 2017...
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Page 5: Who Should Use This Manual
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. -
Page 6: Installation
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. -
Page 7: Setpointps
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. -
Page 8: Firmware Compliance
(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. Table 1 - List of Protection Functions... - Page 9 Transformer over excitation, 2nd harmonic f>< Frequency protection, 5th harmonic f>><< f< Underfrequency protection f<< df/dt Rate of change of frequency (ROCOF) protection Lockout All protective elements can be set for lockout control. Prg1…8 Programmable stages Rockwell Automation Publication 857-QS001B-EN-P - April 2017...
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Page 10: General Precautions
• 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. Rockwell Automation Publication 857-QS001B-EN-P - April 2017... -
Page 11: Catalog Number Explanation
None RTD glass fiber interface for 857-RAA (857-VCMRTD) Eight standard inputs, four TCS Hybrid inputs/outputs (1) Required for connection to 857-RAD Enhanced RTD Scanner. Only available in this location. Ten outputs (2) Required for connection to the 857-RAA scanner only. - Page 12 Chapter 1 Overview Notes: Rockwell Automation Publication 857-QS001B-EN-P - April 2017...
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Page 13: Mounting Instructions
Chapter 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 Figure 2 shows the dimensions of the unit. Figure 1 - Mounting Instructions 1 3 9 1 9 3 1 . - Page 14 Optional Projection Mounting Collar Collar Part Number 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.) Rockwell Automation Publication 857-QS001B-EN-P - April 2017...
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Page 15: Measuring And Control Connections
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 Communication Option 2 Communication Option 1 Rockwell Automation Publication 857-QS001B-EN-P - April 2017... - Page 16 Alarm relay 3 Alarm relay 3 Alarm relay 2 Alarm relay 2 IF COM Internal fault relay, common connector IF NC Internal fault relay, normal closed connector IF NO Internal fault relay, normal open connector Rockwell Automation Publication 857-QS001B-EN-P - April 2017...
- Page 17 Digital input 15 DI16 Digital input 16 D117 Digital input 17 DI18 Digital input 18 COM2 Common potential of digital inputs 13…18 Trip relay 4 Trip relay 4 Trip relay 3 Trip relay 3 Rockwell Automation Publication 857-QS001B-EN-P - April 2017...
- Page 18 Chapter 2 Mounting and Wiring Instructions Table 7 - Terminal X8 Model 857-3C7 Symbol Description DI21 Digital input 21 DI22 Digital input 22 COM1 Common potential of digital inputs 21…2 DI23 Digital input 23 DI24 Digital input 24 COM2 Common potential of digital inputs 23…24...
- Page 19 Mounting and Wiring Instructions Chapter 2 Table 8 - Terminal X8 Model 857-3C8 Symbol Description DI21 Trip relay 14 DI22 Trip relay 14 COM1 Trip relay 13 DI23 Trip relay 13 DI24 Trip relay 12 COM2 Trip relay 12 DI25...
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Page 20: Voltage Measurement Mode
(1) Arc sensor itself is polarity free. 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”... -
Page 21: Protection System Front Panel
Local Panel User Interface Protection System Front 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. Panel Figure 4 - Front Panel of Allen-Bradley 857 Protection System 1. -
Page 22: Menu Navigation And Pointers
After any selection, the The name of the active submenu and a arrow symbols show the possible ANSI code of the selected function. possible navigating directions. The measured and The measured and set set values. parameters. Rockwell Automation Publication 857-QS001B-EN-P - April 2017... - Page 23 Freely selectable measurement values (max. six values). Figure 8 - Sections of the LCD Matrix Display Main menu column. The heading of the active menu. The cursor of the main menu. Possible navigation directions. Measured/setting parameter. Measured/set value. Rockwell Automation Publication 857-QS001B-EN-P - April 2017...
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Page 24: Communication Ports
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. -
Page 25: Digital And Virtual Inputs
X7:6 X7:7 Common for DI7…12 X7:8 External 18…265V DC 50…250 V AC X7:9 X7:10 X7:11 X7:12 X7:13 X7:14 Common for DI13…17 X6:1…2 External 18…265V DC ARC card with 2 DIs 50…250V AC X6:3…4 Rockwell Automation Publication 857-QS001B-EN-P - April 2017... -
Page 26: Virtual Inputs And Outputs
– “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 Rockwell Automation Publication 857-QS001B-EN-P - April 2017... - Page 27 Connected Connected and latched Motor Start Motor Running I> Start I> Trip I>> Start I>> Trip I>>> Start I>>> Trip Output Relay Front panel status indicator, the internal disturbance recorder, or Virtual Outputs Rockwell Automation Publication 857-QS001B-EN-P - April 2017...
- Page 28 Chapter 3 Local Panel User Interface Notes: Rockwell Automation Publication 857-QS001B-EN-P - April 2017...
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Page 29: Step 1: Gather Required Information
Chapter Installation Step 1: Gather Required Before you apply power to the 857 Protection System for the first time, you must obtain the specific information about your application. Information • Selection of the appropriate protective mode for the 857 Protection System: Motor or Feeder protective mode. -
Page 30: Step 3: Validate The 857 Installation
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. Rockwell Automation Publication 857-QS001B-EN-P - April 2017... -
Page 31: Step 4: Power Up, Configuring The Protection System And Verifying
• 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. -
Page 32: Step 5: Configuring The Setpointps Software Tool
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. Rockwell Automation Publication 857-QS001B-EN-P - April 2017... -
Page 33: Step 6: Configuring The Protection System Using Setpointps
2 input of the relay. 5 A, 1 A, or 0.2 A, as specified in the order code of the device. If VT/PT inputs are connected to the Protection System for metering, a selection must be made in the Voltage Measurement Mode selection-area. Rockwell Automation Publication 857-QS001B-EN-P - April 2017... - Page 34 Feeder Protective Mode 4. The factory default protective-element settings within the relay only provide minimal levels of protection. ATTENTION: You must select and configure the appropriate protective elements in relationship to the application mode selected. Rockwell Automation Publication 857-QS001B-EN-P - April 2017...
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Page 35: Set The Valid Protection Stages
Or by going to the individual protection element settings page and enabled or disabled each protection element individually. Figure 11 - Valid Protective Stages Rockwell Automation Publication 857-QS001B-EN-P - April 2017... -
Page 36: Set The Current Scaling Parameter Using The Front Panel
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. Rockwell Automation Publication 857-QS001B-EN-P - April 2017... - Page 38 How Are We Doing? form at http://literature.rockwellautomation.com/idc/groups/literature/documents/du/ra-du002_-en-e.pdf. Rockwell Automation maintains current product environmental information on its website at http://www.rockwellautomation.com/rockwellautomation/about-us/sustainability-ethics/product-environmental-compliance.page. Allen-Bradley, Rockwell Automation, and Rockwell Software are trademarks of Rockwell Automation, Inc. Trademarks not belonging to Rockwell Automation are property of their respective companies.