Diagnostic alarms | Marathon Computer AACC 2000 manual

Marathon Monitors Inc.

Diagnostic alarms

These indicate that a fault exists in either the controller or the connected devices.

Display	What it means	What to do about it
shows

EE.Er	Electrically Erasable Memory	This fault will automatically take you into
	Error:	Configuration level. Check all of the
	The value of an operator, or	configuration parameters before returning
	configuration, parameter has	to Operator level. Once in Operator level,
	been corrupted.	check all of the operator parameters
		before resuming normal operation. If the
		fault persists, or occurs frequently,
		contact MMI Controls.

S.br	Sensor Break:	Check that the sensor is correctly
	Input sensor is unreliable or	connected.
	the input signal is out of
	range.

L.br	Loop Break	Check that the heating and cooling
	The feedback loop is open	circuits are working properly.
	circuit.

Hw.Er	Hardware error	Check that the correct modules are fitted.
	Indication that a module is of
	the wrong type, missing, or
	faulty.

no.io	No I/O	This error message normally occurs
	None of the expected I/O	when pre-configuring a controller without
	modules is fitted.	installing any of the required I/O modules.

rmt.F	Remote input failure. the	Check for open, or short circuit wiring on
	remote DC input, is open or	the remote DC input.
	short circuit

LLLL	Out of range low reading	Check the value of the input.

HHHH	Out of range high reading	Check the value of the input.

Err1	Error 1: ROM self-test fail	Return the controller for repair.

Err2	Error 2: RAM self-test fail	Return the controller for repair.

Err3	Error 3: Watchdog fail	Return the controller for repair.

Err4	Error 4: Keyboard failure	Switch the power off and then on, without
	Stuck button, or a button was	touching any of the controller buttons.
	pressed during power up.

Err5	Error 5: Faulty internal	Check printed circuit board
	communications.	interconnections. If the fault cannot be
		cleared, return the controller for repair.

AACC 2000 Carbon	45	Nov. 1, 1997
	45

Image 45

Marathon Computer AACC 2000 manual Diagnostic alarms, Display What it means What to do about it Shows

Contents

Copyright Marathon Monitors INC Marathon Monitors Inc Mechanical Installation Electrostatic discharge precautions SafetyCleaning Electromagnetic compatibility Wiring Safety SymbolsPower Isolation Personnel Overcurrent protection Over-temperature protectionVoltage rating Conductive pollution 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 Introduction To install the controllerController labels Unplugging and plugging-in the controller 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 OP1 Button or Name ExplanationOP2 SP2 Basic operation Alarms Operating modes Output power demand Automatic modeHome display Display units 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 DrA TunEDrA.t Adc SEt Pid PID listRES Hcb 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 Edit level Setting operator access to a parameterReturning to Operator Level Hiding or revealing a complete list 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 LIN REUD1SA Enab SB.OP Rely CMSNone YES DIG PMV Name Description Values Meaning InSt Instrument configurationH2O SP.FF 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 Exit Exit configuration Password configurationDC Output Calibration User calibration User calibration Calibration Configuration List User Calibration EnableUser Calibration Enable Exit configuration 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