Related Manuals for Allen-Bradley 857-RAA
Summary of Contents for Allen-Bradley 857-RAA
- Page 1 User Manual Original Instructions 857-RAA/857-RAD RTD Scanner Catalog Numbers 857-RAA, 857-RAD...
- 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
857-RAA Scanner ........ - Page 4 Table of Contents Appendix A Configure the 857-RAD Analog Example #1 – mA Output Scaling for IL..... 35 Example #2 – mA Output Scaling for ULine....36 Outputs Example #3 –...
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Page 5: Summary Of Changes
Preface This manual shows you how to install, wire, and program the Bulletin 857 relay, using the SetPointPS programming and configuration software tool, and how to configure either RTD scanner. Summary of Changes This publication contains new and updated information as indicated in the following table. - Page 6 Preface Notes: Rockwell Automation Publication 857-UM002C-EN-P - February 2018...
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Page 7: Overview
0…25 mA current output channels that can be programmed for any analog scale (for example, 0…1mA, 4…20mA, 1…5mA, and so on). Both the 857-RAA and 857-RAD are connected to the Bulletin 857 relay via ST-type glass fiber optic cables; the 857-RAA uses one fiber optic cable (only TX) while the 857-RAD uses a dual fiber optic cable configuration (TX and RX). - Page 8 Chapter 1 Layout Figure 1 - 857-RAA and 857-RAD Configuration Fiber Optic Connection Fiber Optic Connections 857-RAA 857-RAD 12 RTD Channels 12 RTD Channels 4 Configurable Analog Inputs 4 Configurable Analog Outputs 1 PTC Input Figure 2 - 857-RAA RTD Scanner Layout 1.
- Page 9 Layout Chapter 1 Figure 3 - 857-RAD RTD Scanner with mA inputs/outputs 1. Grounded metal enclosure 2. Glass Fiber Rx communication 3. Glass Fiber Tx communication 4. Not used on this model 5. Not used on this model 6. Address DIP switch 7.
- Page 10 Chapter 1 Layout Notes: Rockwell Automation Publication 857-UM002C-EN-P - February 2018...
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Page 11: 857-Raa Scanner
Chapter Application 857-RAA Scanner Figure 4 - Single Glass Fiber Connection to the Bulletin 857-RAA Scanner Fiber Optic Interface Module mounted to the Option Module Multimode Fiber Optic Cable • Diameter: 62.5/125 μm • Connector Type: ST 857-RAA on Wall or DIN Rail... -
Page 12: Communication Settings
Chapter 2 Application Communication Settings 857-RAD DIP-Switches The DIP switches allow you to configure communication settings that are required by the application. Figure 6 - DIP Switches The switch position is ON when the switch is turned DOWNWARDS. Table 1 - LE:1. Optical Fiber Communication Setup Position Function Light is on when there is data being sent. - Page 13 Application Chapter 2 The address switch block is made up of 8 single switches. Their combination provides the user with an address block of 256 addresses (0…255). However, it is very important to note that the Modbus protocol that is used between the RTD scanner and the base 857 relay restricts the use of addresses 0 and others larger than 247 (decimal base).
- Page 14 Chapter 2 Application Notes: Rockwell Automation Publication 857-UM002C-EN-P - February 2018...
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Page 15: Rtd Connections
Chapter Wiring Configurations RTD Connections RTD connections are the same for all versions of the RTD Scanners. Figure 7 shows the proper way to connect RTDs. Figure 7 - Connections of RTDs, Typical Recommended RTD Cable type Shielded non-paired control and instrumentation cable. Rockwell Automation Publication 857-UM002C-EN-P - February 2018... -
Page 16: Current Inputs/Outputs
Chapter 3 Wiring Configurations Current Inputs/Outputs Figure 8 - 857-RAD mA Input and mA Output Connections mA Inputs mA Outputs The RTD channel number for each terminal connection can be confirmed by viewing it from the top of the RTD scanner (see Figure Recommended RTD Cable type Shielded non-paired control and instrumentation cable. -
Page 17: Connect A Bulletin 857 Relay To Pc
For more information about communication between Bulletin 857 relay and a PC, refer to publication 857-UM001 and publication 857-PM001. This manual is divided into two sections to setup the 857-RAA or 857-RAD. Connect to the 857-RAA RTD Scanner on page 18 Connect to the 857-RAD RTD Scanner on page... -
Page 18: Connect To The 857-Raa Rtd Scanner
Chapter 4 Configure the Base 857 Relay Connect to the 857-RAA RTD The 857-RAA RTD scanner module is connected to the Bulletin 857 relay using one fiber optic cable interface module (VCM RTD). there are no Scanner hardware settings required on the 857-RAA RTD scanner module. -
Page 19: External I/O Configuration For 857-Raa
The External I/O Bit Rate should be set to 9600 bits per second (bps) and the Data Parity is always Even. The 857-RAA input settings are shown in Table Table 4 - External I/O Configuration Settings... -
Page 20: Rtd Inputs Quick Setup For 857-Raa
Once saved to the relay, the relay may request a reboot (restart) depending on the setting changed. Once all the settings for the 857-RAA have been completed, all these new setting values must be uploaded into the relay by using the depressing the Write All Settings to the Device icon within the SetPointPS software interface. -
Page 21: Connect To The 857-Rad Rtd Scanner
Configure the Base 857 Relay Chapter 4 Connect to the 857-RAD RTD The 857-RAD enhanced RTD scanner communicates to the base relay using a Modbus protocol over dual fiber optic cables. The address of the module must Scanner be set with the DIP switches on the side of the device. The available address range is 1…247. -
Page 22: External I/O Configuration For 857-Rad
The External I/O Bit Rate should be set to 9600 bits per second (bps) and the Data Parity is always Even. The 857-RAA input settings are shown in Table Table 6 - External I/O Configuration Settings... -
Page 23: Rtd Inputs Quick Setup For 857-Rad
Configure the Base 857 Relay Chapter 4 RTD Inputs Quick Setup for 857-RAD In the External I/O Configuration, you will find RTD Inputs-Quick Setup. This interface makes individual RTD channel setup quick and simple. Table 7 - RTD Inputs • Quick Setup Parameters Parameter Value(s) To Modify:... -
Page 24: External Analog Inputs For 857-Rad
Chapter 4 Configure the Base 857 Relay External Analog Inputs for 857-RAD The 857-RAD is equipped with four individual isolated analog inputs. If used, these inputs must be configured within the base relay for proper operations. IMPORTANT Some of the parameters are preset by the hardware configuration. Not all fields need to be changed. - Page 25 Configure the Base 857 Relay Chapter 4 These scaling factors shift the measured value’s decimal point to either left or right so that accuracy of the measurement is decreased or increased. This is done when the relationship between the parameters are in factors of 10. See 857-PM001 for further details regarding scaling.
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Page 26: External Analog Outputs For 857-Rad Scanner
Chapter 4 Configure the Base 857 Relay Table 9 - 857-RAA/RAD External I/O Registers Modbus Register Properties RTD Channel 1 resistance Read RTD Channel 2 resistance Read RTD Channel 3 resistance Read RTD Channel 4 resistance Read RTD Channel 5 resistance... -
Page 27: Analog Output Settings
Configure the Base 857 Relay Chapter 4 Analog Output Settings Click External Analog Output in SetPointPS. In the External Analog Output tab, you will find all of the analog output settings within the quick setup screen. There are 16 possible analog output channels. - Page 28 Chapter 4 Configure the Base 857 Relay Table 10 - 857-RAD External Analog Outputs Parameter Setup (Continued) Parameter Value Explanation Notes Linked Val. Min Configure the 857-RAD Analog Outputs AO Link’s user defined Minimum Allows scaling of the mA Output parameter on page 35 Value Linked Val.
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Page 29: Troubleshooting
A status indicator called ‘Ext. Al short circuit’ will be enabled within the Output Matrix of the base 857 relay. If power is lost to the 857-RAA or if communications between the base relay and the 857-RAA are lost: •... - Page 30 Chapter 4 Configure the Base 857 Relay Notes: Rockwell Automation Publication 857-UM002C-EN-P - February 2018...
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Page 31: Specifications
Chapter Specifications Specifications Table 12 - RTD Inputs Description Value RTD inputs RTD types Pt100, Ni100, Ni120, Cu10 Measuring range (Ω) 1…400 (-50…+200 °C/-58…392 °F) Measuring accuracy (Ω) ±0.3 (±1°C/34°F) Measuring resolution (Ω) 0.10 Measuring time (s) 1 for all channels (mean value 1) RTD open-circuit detection (Ω) >450 RTD short-circuit detection (Ω) - Page 32 Fiber type Multi-mode fiber optic cable Ø 62.5 /125 μm Connector type Maximum fiber length (m) 2000 Number of fiber cables 857-RAA: 1 857-RAD: 2 Table 19 - Environmental and Enclosure Specifications Description Value Operating temperature 0…55 °C (32…131 °F)
- Page 33 Specifications Chapter 5 Table 20 - Disturbance and Voltage Tests Test Standard and Test Class Test Value Emission (IEC / EN 61000-6-4) Conducted (EN 55011 / CISPR 11) 0.15…30 MHz Emitted (EN 55011 / CISPR 11) 30…1000 MHz Immunity (IEC / EN 61000-6-2) Static discharge (ESD) EN 61000-4-2, class III 6 kV contact discharge...
- Page 34 Chapter 5 Specifications Notes: Rockwell Automation Publication 857-UM002C-EN-P - February 2018...
- Page 35 Appendix Configure the 857-RAD Analog Outputs From the External Analog Outputs set up screen in SetPointPS, you can scale each of the four Analog Outputs independently. Below are shown several variations for the configuration of the Analog Output (mA) scaling. The output scaling is fully scalable.
- Page 36 Appendix A Configure the 857-RAD Analog Outputs Figure 13 - mA Output Scaling for IL Analog Output Example #2 – mA Output Scaling for U Line • AO Link measurand = U Line • Minimum Analog Output value = 4 mA •...
- Page 37 Configure the 857-RAD Analog Outputs Appendix A Example #3 – mA Output Scaling for Bidirectional Power • Minimum Analog Output value = 4 mA • Maximum Analog Output value = 20 mA • Linked minimum value = -2000 kVAR • Linked maximum value = 6000 kVAR •...
- Page 38 Appendix A Configure the 857-RAD Analog Outputs Notes: Rockwell Automation Publication 857-UM002C-EN-P - February 2018...
- Page 39 Appendix Construction and Mounting Figure 16 - DIN-rail Mounting Rockwell Automation Publication 857-UM002C-EN-P - February 2018...
- Page 40 Appendix B Construction and Mounting Figure 17 - Wall Mounting Rockwell Automation Publication 857-UM002C-EN-P - February 2018...
- Page 42 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.
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