6 I/O Wiring Requirements, Required Tools, Housing | Emerson ROC827

ROC827 Instruction Manual

Install a surge protection device at the service disconnect on DC voltage source systems to protect against lightning and power surges for the installed equipment. All earth grounds must have an earth to ground rod or grid impedance of 25 ohms or less as measured with a ground system tester. You may also consider a telephone surge protector for the dial-up modem communications module.

A pipeline with cathodic protection is not a good ground. Do not tie common to the cathodic part of the pipeline.

When connecting shielded cable, be sure to tie the shielded cable to earth ground at the end of the cable attached to the ROC827 only. Leave the other end of the shielded cable open to avoid ground loops.

2.1.6 I/O Wiring Requirements

I/O wiring requirements are site- and application-dependent. Local, state, and NEC requirements determine the I/O wiring installation methods. Direct buried cable, conduit and cable, or overhead cable are all options for I/O wiring installations.

Shielded, twisted-pair cable is recommended for I/O signal wiring. The twisted-pair minimizes signal errors caused by Electro-Magnetic Interference (EMI), Radio Frequency Interference (RFI), and transients. Use insulated, shielded, twisted-pair wiring when using MVS signal lines. The removable terminal blocks accept 12 AWG or smaller wire.

2.2Required Tools

Use the following tools to perform installation and maintenance procedures on the ROC827. For tools required for installation or maintenance of accessories, refer to the ROC/FloBoss Accessories Instruction Manual (Form A4637).

Philips screwdriver, size 0.

Flat blade screwdriver, size 2.5 mm (0.1 inch).

Flat blade screwdriver, large, or other prying instrument.

2.3Housing

The housing case is made of a patented Acrylonitrile Butadiene Styrene (ABS) plastic (U.S. Patent 6,771,513) and the wire channel covers are made of polypropylene plastic.

Issued Mar-06

Installation and Use

2-5

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Emerson ROC827 instruction manual 6 I/O Wiring Requirements, Required Tools, Housing

Contents

Part Number D301217X012 March Flow Computer Division Revision Initial issue Mar-06Issued Mar-06 Contents Wiring the DC Power Input Module Switched Auxiliary Output AUXSW+ and AuxswReplacing the Internal Battery K Type Thermocouple Input Modules Troubleshooting J and K Type Thermocouple Input Modules Troubleshooting Issued Mar-06 Proportional, Integral, and Derivative PID Scope of Manual Hardware Issued Mar-06 General Information ROC827 Base Unit without Expanded Backplane Power Supply Module Module 1 ROC827 with One Expanded Backplane ƒ Local Operator Interface LOI Local Port EIA-232RS-232D Central Processor Unit CPU Real-Time Clock RTC Processor and Memory Options Diagnostic MonitoringSystem Analog Inputs System AI Function Normal Range Point Number Firmware FCC Information Issued Mar-06 General Information Issued Mar-06 General Information Slot Number Logicals 16 pt Logicals 8 pt Historical Database and Event & Alarm LogPoint vs -Point Addressing Flow Calculations Meter Runs and Stations Automatic Self Tests Low Power Modes Function Sequence Table FST Proportional, Integral, and Derivative PID Roclink 800 Configuration Software DS800 Development Suite Software Expanded Backplane Related Specification Sheets Removing the ROC827 from the DIN Rail Installation RequirementsIssued Mar-06 Installation and Use Site Requirements Environmental Requirements Compliance with Hazardous Area Standards Grounding Installation Requirements Power Installation Requirements Required Tools 6 I/O Wiring RequirementsHousing Removing and Replacing End Caps Removing and Installing Wire Channel Covers To install a module cover Removing and Installing Module CoversMounting the ROC827 on a DIN Rail To remove a module cover Side View of the ROC827 DIN Rail Catch DIN Rail Mount Installing the DIN RailSecuring the ROC827 on the DIN Rail ROC800-Series Expanded Backplane EXP Removing the ROC827 from the DIN Rail Attaching an Expandable Backplane Power connector on the EXP Backplane Locking clips and tabs Removing an Expandable Backplane Central Processor Unit CPU CPU Front View Status LED Color Definitions Solution CPU Connector LocationsStatus LED Functions CPU Number Definitions Electronic components, resulting in interrupted operations Installing the CPU ModuleRemoving the CPU Module License Key License Keys Incorrect Correct Installing a License Key To remove a license key Removing a License KeyStartup and Operation Incorrect polarity can damage the ROC827 StartupOperation Issued Mar-06 Power Connections Power Input Module Descriptions1 12-Volt DC Power Input Module PM-12 Volt dc Power Input Module Volt dc Power Input Terminal Block Connections 2 24-Volt DC Power Input Module PM-24Volt DC Power Input LED Fault Indicators Terminal Blocks Definition Volts DC Green LED on when voltage is provided to backplane Volt dc Power Input LED IndicatorsGreen LED on when voltage is provided to CPU Auxiliary Output AUX+ and AUX Other Equipment Volt dc Auxiliary Power Wiring Switched Auxiliary Output AUXSW+ and Auxsw Determining Power Consumption Process Issued Mar-06 Power Connections Estimated Power Consumption Tuning the Configuration Used Cycle Power Consumption of the Analog Input ModulesChannel Channel’s mA current Draw from +T * 1.25 Jumper set for +T @ 24 volts dc Used Cycle AO Module Base Power Consumption of the Analog Output Modules100 mA @ 12 volts dc 1200 mW Channel Channel’s mA current Draw from +T Used Cycle DI Module Base Power Consumption of the Discrete Input Modules Used Cycle Do Module Power Consumption of the Discrete Output Modules DOR Module 10. Power Consumption of the Discrete Output Relay Modules Channel Per Active LED Maximum PI Module MVS Module 12. Power Consumption of the MVS Modules 14. Power Consumption of the Thermocouple Modules 13. Power Consumption of the RTD Modules15. Power Consumption of the Hart Modules Used Cycle RTD Module 65 mA @ 13.25 volts dc Table Total Total Removing a Power Input Module16. Power Consumption of Other Devices Property damage Installing a Power Input ModuleConnecting the ROC827 to Wiring Volts dc Power Supply and BAT+ / BAT- Wiring Wiring the DC Power Input Module Power Supply Terminal Block Wiring the External BatteriesSolar Regulator Panel Batteries Amp Fuse Issued Mar-06 Power Connections 17. Replacement Battery Types Replacing the Internal Battery Name Form Number Part Number 18. Power Input Module Specification Sheets I/O Module Overview Issued Mar-06 Input/Output Modules Slot #1 or Front View Side ViewComm Slot #2 or Installation Installing an I/O Module Earth ground Removing an I/O Module Analog Input Modules Wiring I/O Modules Current Loop Device 4-20mA Precision +T 12 / 24 V dc Jumper Resistor +T 12 / 24 V dc Jumper Analog Output Modules Representative Internal Circuit Field WiringDiscrete Input Modules Discrete Output Modules Discrete Input Module Field Wiring Discrete Output Relay Modules With powered devices may cause improper operation or damageRepresentative Internal Circuit Field Wiring Pulse Input Modules 10. Discrete Output Relay Module Field Wiring 11. Pulse Input J4 Jumper Set to +12 RTD Input Modules Representative Field Wiring Internal Circuit RTD Signal Routing Connecting the RTD WiringSignal Terminal Designation CH 1 REF Constant Current + CH 1 + Wire RTD Red Jumper Red RTD WiringTerminal Wire RTD K Type Thermocouple Input Modules De-calibration 15. Type J and K Thermocouple Wiring Module to ground Wiring United States Color CodingSheathed Supported I/O Module Specification Sheets Issued Mar-06 Input/Output Modules Communications Ports and Modules Overview Issued Mar-06 CommunicationsBuilt-in Communications and Optional Communication Modules Communications Built-in on CPU Optional Module Signals Action Communication LED Indicator Definitions Example RS-485 Communications Module Installing Communication Modules Removing a Communications Module Local Operator Interface LOI Wiring Communications Modules RJ-45 to EIA-232 RS-232 Null-modem Cable Signal Routing Built-in LOI EIA-232 Signal RoutingEIA-232 ROC800 RJ-45 Pins RS-232 On ROC800 Series Ground Common Receive Ethernet Communications Using the LOIRed Green Brown Gray Signal Function Ethernet Signal LEDs BASE-T Crossover Cable EIA-232 RS-232 Serial Communications Signal LED Function Built-in EIA-232 RS-232 Signal Routing Comm2Lit when Comm2 ready to send is not active Lit when Comm2 data terminal ready is active 10. EIA-485 RS-485 Signal Routing Comm3, Comm4, and Comm5 EIA-422 RS-422 Signal Routing Comm3, Comm4, and Comm5Signal RS-422 Function Terminal Signal RS-485 Function Terminal Jumper Terminated Not Terminated TER Out Half Full Dial-up Modem Communications Module12. EIA-485 RS-485 Module Signal Pin 14. Modem Signal Routing Comm3, Comm4, and Comm513. RJ-11 Field Connections Tip Ring Terminated Not Terminated Jumper Multi-Variable Sensor MVS Interface Modules15. MVS Termination MVS Jumper J4 Shown Not Terminated 16. MVS Signal Routing Comm3, Comm4, and Comm5 Hart Interface Module Issued Mar-06 Communications Hart Channels 1 and 3 back side of board Hart Interface Module Field Wiring Hart Channels 2 and 4 front side of board CH2 I/O Switch CH4 I/O Switch D301213X012 17. Related Documentation Guidelines Troubleshooting J & K Type Thermocouple Input ModulesIssued Mar-06 Troubleshooting 2 I/O Point ChecklistsSerial Communications MVS Module Powering UpSoftware Restarting the ROC827 ProceduresPreserving Configuration and Log Data Analog Input Module Typical Configuration Values Troubleshooting Analog Input ModulesSelect File Download Damage Value = Vmultimeter 1 ⎟ 4 * Span + Low Reading EU Select Configuration I/O AI Points Troubleshooting Discrete Input Modules Troubleshooting Analog Output ModulesSelect Configuration I/O AO Points Select Scanning Enabled and click Apply Select Configuration I/O DI Points Troubleshooting Discrete Output ModulesTroubleshooting Discrete Output Relay Modules Troubleshooting RTD Input Modules Troubleshooting Pulse Input ModulesSelect Configuration I/O PI Points Equipment Required Select Configuration I/O RTD Point Troubleshooting J and K Type Thermocouple Input Modules To test the thermocouple To test the thermocouple module Issued Mar-06 Troubleshooting Preparing for Calibration Issued Mar-06 CalibrationCalibration Issued Mar-06 Calibration Area AnalogAttribute Built-in I/O Comm Module ConfigurationTree Crosstalk EIA-422 EIA-232RS-422 EIA-485 Firmware Input Highway Addressable Remote TransducerInput Register Local Port MAC Address Manual modeModbus Msec Point PresetPoint Type Protocol Script RX or RXDSoft Points System Issued Mar-06 Glossary Alarming Battery +12 V dcDiagnostic Issued Mar-06 Index Wiring Dc Power Supply and CHG+ and CHG Dc Power Supply and BAT+ / BATFunction Sequence Table FST Issued Mar-06 Index Discrete Output Relay Fuse InstallingEIA-422/485 RS-422/485 Communications Local Operator Interface Public Switched Telephone Networks Power Input modulesSetup Specifications Analog Input Module Typical Configuration MVS Signal Routing Comm3, Comm4Using Wiring Emerson Process Management Flow Computer Division