Emerson Process Management Series 9110, CI-9110, 9110-00A instruction manual Troubleshooting Hints

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5.2 TROUBLESHOOTING HINTS

Some basic types of problems that can occur in the field are listed as follows:

Unit dead, no motor movement

Measure across power terminals TB2-4 & -5 with a DVM. The reading should be 12 or 24 V dc depending upon model. Incorrect or no voltage indicates an external supply problem. If proper voltage is present, check Fuse F1 on the Termination Board. Fuse F1 should be a 1A, 250 V, 3AG type. If replacement fuses continue to blow, a short may be present at the field wiring terminals or in the PC boards.

Output drift on Analog model

Check for open signal lead at input terminals TB1-2 & -3. Measure across terminals with a DVM and check for proper voltage range.

Output stays constant with input change

If Guard mode is used, check for proper signal at Guard terminals TB1-5 & -5. If Guard is not used, make sure SW2-6 is in the CLOSE position.

Severe output tracking errors on Analog model

Check setting of switches SW1 (1-5). If any are set to Pulse Increment mode, the output will not balance properly. These switches must be set OPEN for Analog models.

Noisy or Erratic Output on Raise Lower Model

Try SW1-8 in both positions and choose the one with the lowest noise level. For Analog models, this switch must be set OPEN.

Raise or Lower function does not work on Raise/Lower model

Check voltage at Raise or Lower terminals TB1 (1-4) with voltmeter during activation. Also check across Guard terminals TB1-5 & -6, if used. If no voltage change occurs at any given input, check for broken signal leads or a defect in the external device.

Output pressure does not rise above certain point

A high limit may be set too low or the pressure regulator vent may be restricted. Also check for water or oil in pressure lines.

Output pressure drops off with constant level input

Check for leaks in pressure lines or loose fittings.

Service

5-2

CI-9110

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Contents Remote Set Regulator Model 9110-00A IMPORTANT! Read Instructions Before Starting Warranty Mail Bristol IncPhone Bristol Inc. Repair Authorization Form off-line completion Training Telephone Support Technical Questions 860 860 945-2213 FAXVisit our Site on the World Wide Web Training Courses Model 9110-00A Remote SET Regulator Supplemental Instructions Product Description Theory of OperationAnalog Regulator Model Remote Set Regulator Block Diagram of Analog Type Regulator Guard Input Current OutputBlock Diagram of Raise/Lower Type Regulator Data Plate Raise/Lower Regulator ModelModel Number Breakdown = Pneumatic Output = Mounting Arrangement Page Two-Inch Pipe Mounting GeneralMounting In-Line MountingPressure Connections General PipingRegulator Assembly Moisture in LinesVenting Internal AccessLine Size Body and CoverSafety Note Electrical Conduit PortPage Using Option Switches Cradle Switches with Open DesignationSlide Switches with on Designation Analog Input Models Switch FunctionsRegulator Assembly Switch SW1 & SW2 Functions & Settings RAISE/LOWER Input ModelsContinuous Signal Incremental SignalSwitch SW1 1-5, Pulse Increments Input FilterStatic or Dynamic Guard Input Guard InputOutput Rate of Change Guard LogicSwitch SW2 2-5, Output Rate Of Change Analog Failure Modes Fail Hold & Fail ZeroFAIL-ZERO Mode Page Field Wiring Terminal Identification For Analog Input Models Terminal Identification For Raise/Lower ModelsAnalog Voltage Input with Guard Analog Current Input 4-20 mA with Guard RAISE/LOWER Inputs with GuardRaise/Lower & Guard Inputs from Relay Contacts DC Power Current Output to FSK Bi-State TransmitterOperating Notes Initial ChecksField Wiring CI-9110 Service Troubleshooting Hints Procedure Setting Output LimitsTest Setup General PrinciplesCalibration Test Setup Calibration PrecautionAnalog Test Setup Preliminary Calibration CheckCurrent Output Span & Load Detailed Calibration for Analog ModelFeedback Zero & Span Pressure Output CheckRaise/Lower Test Setup Detailed Calibration for RAISE/LOWER ModelPCB Reference Drawings CPU Board & Termination Board Reference TableAssembly, Analog Type CPU Board with Current Output Assembly, Raise/Lower Type CPU Board with Current Output Analog Input Model RAISE/LOWER Input ModelAccuracy RAISE/LOWER Models Analog OutputAccuracy Analog Models Stepper Drive MechanismEnvironmental Pressure Regulator AssemblyInstrument Enclosure Range Factory Calibrated withHumidity 10 to 95% over -20to +130 F -29to +55 Range Model 9110 Main Parts Parts Referenced in FigureRemote Set Regulator Actuator Unit Remote Set Regulator Actuator Unit Mounting Parts Remote Set Regulator Assembly Basic Parts Remote SET Regulator Basic PartsGuidelines for System Grounding Basic Ground Rod Installation Noise and Signal Errors General RecommendationsGrounding of Equipment Housing Transients and Interference Grounding of Transmitter Types of Earth Grounds AC Power Grounding System Dry Soil Sandy SoilRocky Soil Several DPCs Mounted in Metal Cabinet with Power Supply Following installation procedures applyGrounding for DPCs and Power Supplies Single Metal Cabinet Multiple DPC Cabinets Powered by Single Power Supply Elements of a Facility Ground System Multiple Clusters of DPC Cabinets Powered by Local Supplies ReferencesPage Remote Set Regulator Model 9110-00A