Operating modes | Marathon Computer AACC 2000 specification

Marathon Monitors Inc.

Operating modes

The controller has two basic modes of operation:

∙Automatic mode in which the output is automatically adjusted to maintain the temperature or process value at the setpoint.

∙Manual mode in which you can adjust the output independent of the setpoint.

You toggle between the modes by pressing the AUTO/MAN button. The displays which appear in each of these modes are explained in this chapter.

AACC 2000 Carbon

27

Nov. 1, 1997

Image 27

Marathon Computer AACC 2000 manual Operating modes

Contents

Copyright Marathon Monitors INC Marathon Monitors Inc Mechanical Installation Electromagnetic compatibility SafetyElectrostatic discharge precautions Cleaning Personnel Safety SymbolsWiring Power Isolation Conductive pollution Over-temperature protectionOvercurrent protection Voltage rating Installation requirements for EMC Grounding of the temperature sensor shieldRouting of wires Equipment ratings Environmental ratings General Electrical safety Marathon Monitors Inc Installation Outline dimensions Model 2000 controller Outline dimensions Model Unplugging and plugging-in the controller To install the controllerIntroduction Controller labels Model Aacc 2000 rear terminal layout Rear terminal layouts Marathon Monitors Inc Module 1, 2 Sensor input connections Snubbers Two terminal modules Four terminal modules COMDual output modules Connections for Process Value 2 PV2 Connections for Process Value 3 in module position Communication module EIA-485 wiring Wiring of 2-wire EIA-485 serial communications link Marathon Monitors Inc Operation Front Panel LAYOUTs 26.0 SP2 Button or Name ExplanationOP1 OP2 Basic operation Alarms Operating modes Display units Automatic modeOutput power demand Home display Setpoint Manual Mode List header displays Parameters and HOW to Access Them Marathon Monitors Inc Parameter names Parameter displaysTo change the value of a parameter List 1OFFOFF PID.1 PID STD Fact Pass Name Description Prob Probe list Process Factor Millivolt input OffsetHydrogen or CO constant Name Description Adc TunEDrA DrA.t Hcb Pid PID listSEt RES Input list Setpoint list Output list CmS Comms listInFo Information list FF.OP Access List Alarms Display What it means What to do about it Shows Diagnostic alarms 2b Diagnostic alarms Access Levels Access list header Password entryAccess to Read-only Configuration Configuration password Configuration levelLevel selection Hiding or revealing a complete list Setting operator access to a parameterEdit level Returning to Operator Level Promoting a parameter This sheet intentionally left blank Parameter Code Meaning or Function Tuning How to tune One-shot Tuning Typical automatic tuning cycle Calculation of the cutback valuesAdaptive tune Manual Tuning Proceed as follows Setting the cutback values Automatic droop compensation Adc Integral action and manual reset Motorized valve control Name Description Values Mtr Motor list Min Max Default Inertia and backlash settings Adjusting the minimum on-time ‘mp.t’ Marathon Monitors Inc Enable in configuration level Gain schedulingSet the transfer point Configuration Press to enter configuration Selecting configuration level Changing the passwords Leaving Configuration Level SB.OP REULIN D1SA Enab Rely CMSNone YES DIG PMV SP.FF InSt Instrument configurationName Description Values Meaning H2O Process value config Input configurationCJC Setpoint configuration VAL.LVAL.H Alarm configuration Values Table a Alarm types ValueAlarm Modes Digital input 1 configuration Action on contact closure Digital input 2 configuration Action on contact closureIMP Alarm relay configuration VfltPflt Combining several digital events on to one output Comms 1 module config Module config 1A b C1 Module 1 configurationCool For ‘id’ = ‘LoG.i’ i.e logic input use the LA Conf’ list on 2A/b/C Module 2 configuration Displayed value low SEL 3A/b/C Module 3 configuration Module configuration C Module configuration Point Custom Linearisation VAL.1VAL.8 CAL User calibration Password configurationExit Exit configuration DC Output Calibration User calibration Exit configuration User Calibration EnableCalibration Configuration List User Calibration Enable Offset calibration Input list headerCalibration type Set Offset See table on the right for additional parameters Displayed Value Two-point calibration Select Low-point Calibration Adjust low-point calibration Select High-point Calibration Adjust High-point Calibration Name Parameter description Meaning Calibration points and Calibration offsets Parameter Table Default HY1 Ssel FLT3 Marathon Monitors Inc AL1 Module 2A High Value VAL.1 101 Index Two-point calibration User calibration Aacc 2000 Carbon