Marathon Computer AACC 2000 manual Environmental ratings, Equipment ratings

Page 8

	Marathon Monitors Inc.

Technical Specification
Environmental ratings
Panel sealing:	Instruments are intended to be panel mounted. The
	rating of panel sealing is IP65, (EN 60529), or 4X, (NEMA
	250).
Operating temperature:	0 to 55oC. Ensure the enclosure provides adequate
ventilation.
Relative humidity:	5 to 95%, non condensing.
Atmosphere:	The instrument is not suitable for use above 2000m
	or in explosive or corrosive atmospheres.
Equipment ratings
Supply voltage:	100 to 240Vac -15%, +10%, or optionally:
Supply frequency:	48 to 62Hz.
Power consumption:	15 Watts maximum.
Relay 2-pin (isolated):	Maximum: 264Vac, 2A resistive. Minimum: 12Vdc, 100mA.
Relay changeover (isolated): Maximum: 264Vac, 2A resistive. Minimum: 6Vdc, 1mA.
Triac outputs (isolated):	30 to 264Vac. Maximum current: 1A resistive.
Leakage current:	The leakage current through triac and relay contact
	suppression components is less than 2mA at 264Vac, 50Hz.
Over current protection:	External over current protection devices are required that
	match the wiring of the installation. A minimum of 0.5mm2 or
	16awg wire is recommended. Use independent fuses for the
	instrument supply and each relay or triac output. Suitable
	fuses are T type, (EN 60127 time-lag type) as follows;
	Instrument supply: 85 to 264Vac, 2A, (T).
	Relay outputs: 2A (T). Triac outputs: 1A (T).
Low level i/o:	All input and output connections other than triac and relay are
	intended for low level signals less than 42V.
Single logic output:	18V at 24mA. (Non-isolated.)
DC output (Isolated):	0 to 20mA (600Ω max), 0 to 10V (500Ω min).
DC output (Non isolated):	0 to 20mA (600Ω max), 0 to 10V (500Ω min).
Fixed digital inputs:	Contact closure. (Non isolated.)
Triple contact input:	Contact closure. (Isolated.)
Triple logic input:	11 to 30Vdc. (Isolated.)
DC or 2nd PV input:	As main input plus 0-1.6Vdc, Impedance, >100MΩ.
	(Isolated.)
Potentiometer input:	0.5V excitation, 100Ω to 1.5kΩ Potentiometer. (Isolated.)
Transmitter supply:	24Vdc at 20mA. (isolated.)
Strain gauge supply:	10Vdc. Minimum bridge resistance 300Ω. (Isolated.)
Digital Communications:	EIA-232, 2-wire EIA-485 or 4-wire EIA-485 (All isolated).

AACC 2000 Carbon	8	Nov. 1, 1997
	8

Image 8

Contents Copyright Marathon Monitors INC Marathon Monitors Inc Mechanical Installation Safety Electrostatic discharge precautionsCleaning Electromagnetic compatibilitySafety Symbols WiringPower Isolation PersonnelOver-temperature protection Overcurrent protectionVoltage rating Conductive pollutionRouting of wires Installation requirements for EMCGrounding of the temperature sensor shield Environmental ratings Equipment ratingsElectrical safety GeneralMarathon Monitors Inc Installation Outline dimensions Model Outline dimensions Model 2000 controllerTo install the controller IntroductionController labels Unplugging and plugging-in the controllerRear terminal layouts Model Aacc 2000 rear terminal layoutMarathon Monitors Inc Sensor input connections Module 1, 2Two terminal modules SnubbersDual output modules Four terminal modulesCOM Connections for Process Value 3 in module position Connections for Process Value 2 PV2Communication module Wiring of 2-wire EIA-485 serial communications link EIA-485 wiringMarathon Monitors Inc Operation 26.0 Front Panel LAYOUTsButton or Name Explanation OP1OP2 SP2Alarms Basic operationOperating modes Automatic mode Output power demandHome display Display unitsManual Mode SetpointParameters and HOW to Access Them List header displaysMarathon Monitors Inc To change the value of a parameter Parameter namesParameter displays OFF List1OFF PID PID.1Fact STDPass Hydrogen or CO constant Name Description Prob Probe list Process FactorMillivolt input Offset Name Description TunE DrADrA.t AdcPid PID list SEtRES HcbSetpoint list Input listInFo Information list Output listCmS Comms list Access List FF.OPAlarms Diagnostic alarms Display What it means What to do about it Shows2b Diagnostic alarms Access Levels Access to Read-only Configuration Access list headerPassword entry Level selection Configuration passwordConfiguration level Setting operator access to a parameter Edit levelReturning to Operator Level Hiding or revealing a complete listPromoting a parameter This sheet intentionally left blank Tuning Parameter Code Meaning or FunctionOne-shot Tuning How to tuneAdaptive tune Typical automatic tuning cycleCalculation of the cutback values Manual Tuning Setting the cutback values Proceed as followsIntegral action and manual reset Automatic droop compensation AdcName Description Values Mtr Motor list Min Max Default Motorized valve controlAdjusting the minimum on-time ‘mp.t’ Inertia and backlash settingsMarathon Monitors Inc Set the transfer point Enable in configuration levelGain scheduling Configuration Selecting configuration level Press to enter configurationLeaving Configuration Level Changing the passwordsREU LIND1SA Enab SB.OPNone RelyCMS DIG YESPMV InSt Instrument configuration Name Description Values MeaningH2O SP.FFCJC Process value configInput configuration VAL.H Setpoint configurationVAL.L Alarm Modes Alarm configuration ValuesTable a Alarm types Value IMP Digital input 1 configuration Action on contact closureDigital input 2 configuration Action on contact closure Pflt Alarm relay configurationVflt Comms 1 module config Combining several digital events on to one outputCool Module config1A b C1 Module 1 configuration 2A/b/C Module 2 configuration For ‘id’ = ‘LoG.i’ i.e logic input use the LA Conf’ list onDisplayed value low 3A/b/C Module 3 configuration SELC Module configuration Module configurationVAL.8 Point Custom LinearisationVAL.1 CAL Password configuration Exit Exit configurationDC Output Calibration User calibrationUser calibration User Calibration Enable Calibration Configuration ListUser Calibration Enable Exit configurationCalibration type Offset calibrationInput list header See table on the right for additional parameters Set OffsetTwo-point calibration Displayed ValueAdjust low-point calibration Select Low-point CalibrationAdjust High-point Calibration Select High-point CalibrationCalibration points and Calibration offsets Name Parameter description MeaningParameter 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