Emerson Process Management 53eA Alarm Fault, Feed limit Disable, Timeout 3600 sec

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MODEL 54eA

SECTION 5.0

 

SOFTWARE CONFIGURATION

5.7 CHANGING ALARM PARAMETERS (continued)

Alarm : Fault

ExitEdit

Feed limit : Disable

Timeout: 3600 sec

ExitEdit

1.000 ppm

26.2°C 12.0mA

Feed limit alarm 1

Example: The setpoint is 3.00 ppm. The URV is +5.00 ppm and the LRV is 0.00 ppm. The time period is 30 seconds. When the concentration is 4.00 ppm, the relay will be on (4-3)/(5-0) = 20% of the time or 6 seconds.

Relay default: Relay default determines how the relay will act if there is a fault or hold condition. The choices are on (relay closed), off (relay open), or none (relay remains unchanged).

USE OF TPC

Setting TPC parameters is not trivial. Substantial trial and error is often needed before results are accept- able. For non-linear measurements, like pH, applying PID algorithms can result in unintended effects.

9.Alarm 4 setup:

Alarm 4 is a dedicated fault alarm. When a fault condition exists, the red LED on the front display will light.

a.From the menu header screen (step 6) move the cursor to "Alarm 4 setup."

b.To disable the alarm, press Edit (F4) and use the é key to change the "Fault" to "Off"

10.Feed limit timer setup:

Alarm 1, 2, or 3 can be configured as a feed limit timer. The feed limit timer prevents overfeeding of treatment chemicals by automatically turning off the relay after a timeout period.

a.From the menu header screen (step 6) move the cursor to "Feed limit timer." Press Enter (F4).

b.With the cursor on "Feed limit" press Edit. Use the é key to scroll through the choices: disable, AL 1, AL 2, and AL 3. Press Save (F4) to store the selection.

c.Move the cursor to "Timeout". Press Edit (F4) and use the arrow keys to change the timeout to the desired value. Press Save (F4) to store the setting.

Operation of the feed limit timer. When a feed limit alarm has timed out, "Feed limit alarm 1" (if alarm 1 was chosen) appears in the display. At the same time the red FAIL LED will light and alarm 4 will close (if not turned off), and the selected feed limit relay (alarm

1)will open (de-energize). All other alarms and current outputs will remain unchanged. The relays remain in the state described until the Ack (F2) key is pressed, at which time the controller returns to normal operation and the feed limit clock starts again.

NOTE

Pressing Ack (F2) acknowledges all conditions that turn on the red LED. If another event occurs after F2 is pressed, F2 must be pressed again to acknowledge the new event.

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Contents Model 54eA Amperometric Hart Analyzer/ControllerEssential Instructions Page Model 54eA ANALYZER/CONTROLLER 12.0 10.011.0 13.0List of Figures Section TitleIii Section Specifications Features and ApplicationsOutput Accuracy ± 0.05 mA Alarms Specifications GeneralPower Weight/Shipping Weight 5 lb/6 lb 2 kg/2.5 kgSpecifications Total Chlorine Specifications OxygenSpecifications Free Chlorine Specifications Ozone115/230 VAC, 50/60 Hz Power Ordering Information24 VDC Section Installation InstallationUnpacking and Inspection Pipe and Wall Mounting Dimensions Pipe mountingPanel Mounting Dimensions Panel mountingSection Wiring POWER, ALARM, and Output WiringGeneral 454EPH02 Sensor Wiring Wiring Model 499A oxygen, chlorine, and ozone sensorsGeneral 4054eA01 4054eA03 4054eA02 4054eA04 4054eA07 General Description Alarm StatusSection Display and Operation DisplaySection Software Configuration Program Settings ListChoices Factory Settings Configure Choices Factory Settings Temperature compensation Section Menu Tree for the 54eA Controller Main Menu Main Alarm setpoints Alarm 2 setpointMA 0.00 ppm 20 mA 20.00 ppm Output 1 12.00 mA Ranging the OutputsSimulated test Alarm setpointsOutput setpoints Setpoint 1.000 ppm 4mA 0.000 ppm 20mA 10.00 ppmTest alarm 1 Open Simulated testsTest output Configure DisplayDisplay contrast Timeout On Temp units C Output 1 mA Output 2 mALanguage English Display left Display right Out Outputs Output 1 controlOutput Measurement Output 1 Control Ctrl mode NormalOutput 1 Setup Range 4-20 mA Dampen 0 sec Hold Last ValueHold setup Using holdChanges in the alarm setup Changing Alarm ParametersAlways configure the control parameters Before making Alarm Control SettingsAlarm 2 control Alarm 1 controlAlarm 1 setup Alarm Low Setpoint 0.000 ppmLow Alarm High AlarmTimeout 3600 sec Alarm FaultFeed limit Disable Feed limit timer setupTimer Disable Timer Time activated Interval 24.0 hr Alarm 4 setup Feed limit timerInterval timer Interval timer setupUsing the 499ACL-01 sensor PH sensor EnablePH sensor Disable PH comp Manual PH value 7.00 pHDiagnostics Off Glass imp lo 20 MΩAutocal Standard Temp coeff Operate iso 7.00 pH Sensor iso 7.00 pHTemp units C Temperature Compensation and Temperature UnitsTemp comp Auto Temp comp Manual Temp units C60 Hz Noise ReductionMain sensor cal Bar meas Auto Bar units mm HgBarometric Pressure Security Lock program Lock configNoise rejection Main sensor cal Lock allController Mode Priority Condition DefinitionsAction Definitions Section Calibration Temperature IntroductionAdjust temp + 025.1 C Temperature CalibrationSection Calibration Dissolved Oxygen Dissolved Oxygen ConcentrationSensor must be in zero solution Zeroing the SensorStabilizing . . . Wait Calibrating the Sensor in AIRSection Calibrate 8.32 ppm Calibrating the Sensor Against a Standard InstrumentStandardize Zero main sensor Adjust temperatureCalibrate main sensor Calibrating Barometric PressureSection Calibration Free Chlorine 499ACL-01 Sensor Current as a Function of Free Chlorine ConcentrationCalibrate main sensor Calibrate 1.100 ppm Full Scale CalibrationCalibrate low point Dual range calOutput trim Dual Slope CalibrationLow point 2.000 ppm Calibrate high pointSection Calibration Free Chlorine 498CL-01 IntroductionPpm 100ppm 000 ppm Section Calibration Free Chlorine 498CL-01 Section Calibration Total Chlorine This page intentionally left blank Section Calibration Monochloramine Sensor Current as a Function of Monochloramine ConcentrationPpm 100ppm Section Calibration Ozone Sensor Current as a Function of Ozone ConcentrationPpm 100ppm Section PH at 25C Standards Nominal pHAutocal buffer Automatic TWO-POINT Calibration10.02 pH Calibrate point Pt 04.00pH 25CManual TWO-POINT Calibration 10.01 pH Pt 4.00pH 25.0CStandardization ONE-POINT Calibration Pt calibration Standardize pH pH slopePH slope 60.00 mV/pH Section Calibration Current Outputs Trimming the OutputsSection PID and TPC Control PID Control CodeProportional Gain Plus Integral Reset Control Loop Adjustment and TuningProcess Reaction Curve Method Process Reaction Curve Section Time Proportional Control TPC Mode Code Fault message Explanation See Section Section TroubleshootingTroubleshooting When a Fault Message is Showing OverviewCheck sensor zero Temperature error low or highHigh input current PH low or high input voltageSense line open Troubleshooting When no Fault Message is Showing OxygenProblem See Section Failure factory and Failure eepromPossible error warning during in-process calibration Zero current is too highZero reading Is unstable Readings drift Barometric pressure reading is too high or too lowProcess readings are erratic Sensor does not respond to changes in oxygen levelProblem Zero current is unstableSensor can be calibrated, but the current is too low Sensor does not respond to changes in chlorine level Chlorine readings are too lowProblem See Section Sensor does not respond to changes in monochloramine level Readings are too low Troubleshooting When no Fault Message is Showing Ozone Sensor does not respond to changes in ozone level Ozone readings are too lowTroubleshooting When no Fault Message is Showing pH Controller will not accept manual slope Sensor does not respond to known pH changes100 Process pH readings are noisy 101Simulating Inputs Dissolved Oxygen Troubleshooting not Related to Measurement ProblemsProblem Action Sensor Polarizing Voltage Resistance Expected currentSimulating Inputs Other Amperometric Measurements Simulate Chlorine and Ozone 103Simulating pH input when the preamplifier is in the sensor Voltage mV PH at 25C104 Simulating Temperature Simulating temperature105 Measuring Reference Voltage 106Section Maintenance Replacement Parts Part Number DescriptionSection Return of Material GeneralWarranty Specifications subject to change without notice
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