Marathon Monitors Inc.
Marathon Monitors Inc. Part # F200047 COPYRIGHT © 1998 MARATHON MONITORS INC. 3100 East Kemper Road, Cincinnati, Ohio 45241 1-800-322-4444 (513) 772-7788 FAX: (513) 772-7853 No part of this document may be stored or reproduced by any means whatsoever without prior written permission of Marathon Monitors Inc. All trademarks used in this publication are duly marked and the sole property of their respective owners. No attempt at trademark or copyright infringement is intended or implied.
Marathon Monitors Inc. Table of contents: SAFETY and EMC INFORMATION ................................................................... 4 Installation Safety Requirements........................................................................... 5 Installation requirements for EMC.................................................................... 7 Technical Specification......................................................................................... 8 Installation ...............................
Marathon Monitors Inc. SAFETY and EMC INFORMATION Please read this section carefully before installing the controller This controller is intended for industrial temperature and process control applications where it will meet the requirements of the European Directives on Safety and EMC. Use in other applications, or failure to observe the installation instructions of this handbook may impair the safety or EMC protection provided by the controller.
Marathon Monitors Inc. Installation Safety Requirements Safety Symbols Various symbols are used on the instrument, they have the following meaning: ! Caution, (refer to the accompanying documents) Functional earth (ground) terminal The functional earth connection is not required for safety purposes but to ground RFI filters. Personnel Installation must only be carried out by qualified personnel.
Marathon Monitors Inc. Overcurrent protection To protect the internal PCB tracking within the controller against excess currents, the AC power supply to the controller and power outputs must be wired through the fuse or circuit breaker specified in the technical specification.
Marathon Monitors Inc. Where damage or injury is possible, we recommend fitting a separate over-temperature protection unit, with an independent temperature sensor, which will isolate the heating circuit. Please note that the alarm relays within the controller will not give protection under all failure conditions. Grounding of the temperature sensor shield In some installations it is common practice to replace the temperature sensor while the controller is still powered up.
Marathon Monitors Inc. Technical Specification Environmental ratings Panel sealing: Operating temperature: ventilation. Relative humidity: Atmosphere: Instruments are intended to be panel mounted. The rating of panel sealing is IP65, (EN 60529), or 4X, (NEMA 250). 0 to 55oC. Ensure the enclosure provides adequate 5 to 95%, non condensing. The instrument is not suitable for use above 2000m or in explosive or corrosive atmospheres.
Marathon Monitors Inc. General Main PV Input range: +100mV, 0 to 10Vdc (auto ranging) and 3 wire Pt100. Calibration accuracy: The greater of +0.2% of reading, +1 LSD or +1oC. Cold junction compensation >30:1 rejection of ambient temperature, (for thermocouple i/p). Electrical safety Standards: Installation category II: Pollution degree 2: Isolation: AACC 2000 Carbon EN 61010, Installation category II, pollution degree 2. CSA C22.2 No.142-M1987.
Marathon Monitors Inc. AACC 2000 Carbon 10 Nov.
Marathon Monitors Inc. Installation Ratchets Case Terminal covers Display screen Label Panel retaining clips Latching ears Panel sealing gasket AACC 2000 1/4 DIN controller Figure 1 - 3 AACC 2000 Carbon 11 Nov.
Marathon Monitors Inc. Outline dimensions Model 2000 150mm 96mm 3.78in 5.91in 96mm 3.78in Panel cut-out 92 x 92 mm -0 +0.8 -0 Recommended minimum spacing of controllers 3.62 x 3.62 in +0.03 Figure 1-4 Outline dimensions Model 2000 controller The electronic assembly of the controller plugs into a rigid plastic case, which in turn fits into the standard DIN size panel cut-out shown in Figures 1-3 and 1-4. AACC 2000 Carbon 12 Nov.
Marathon Monitors Inc. Introduction Model AACC 2000’s are high stability, process controllers with self and adaptive tuning. They have a modular hardware construction which accepts up to three plug-in Input/Output modules and two interface modules to satisfy a wide range of control requirements. Two digital inputs and an optional alarm relay are included as part of the standard hardware. Before proceeding, please read the, Safety and EMC Information.
Marathon Monitors Inc. All electrical connections are made to the screw terminals at the rear of the controller. If you wish to use crimp connectors, the correct size is AMP part number 349262-1. They accept wire sizes from 0.5 to 1.5 mm2 (16 to 22 AWG). A set of connectors is supplied with the controller. The terminals are protected by a clear plastic hinged cover to prevent hands, or metal, making accidental contact with live wires. Rear terminal layouts The rear terminal layouts are shown in Figure 1-6.
Marathon Monitors Inc. The display below shows a typical wiring diagram for the AACC2000 Carbon Controller: Typically a series of letters appear after the part number, see chart below. D – Dual Relay A – Analog Output X – Not Installed C – Communications I – Analog Input (typically in position 3) AACC 2000 Carbon 15 Nov.
Marathon Monitors Inc. Sensor input connections The connections for the various types of sensor input are shown below. Thermocouple V1 Resistance thermometer mA input V1 Volts or mV inputs V1 V+ V+ V+ v- v- v- V1 2.49Ω current sense resistor V+ v- P V Fig 1-7 Sensor input connections PLUG-IN MODULE CONNECTIONS Module 1, 2 and 3 Module positions 1, 2 and 3 are plug-in modules.
Marathon Monitors Inc. Two terminal modules Note: Module 1 is connected to terminals 1A and 1B Module 2 is connected to terminals 2A and 2B Module 3 is connected to terminals 3A and 3B.
Marathon Monitors Inc. Four terminal modules Note: Module 1 is connected to terminals 1A, 1B, 1C and 1D Module 2 is connected to terminals 2A, 2B, 2C and 2D Module 3 is connected to terminals 3A, 3B, 3C and 3D Module type Terminal identity A B C Possible functions D Heating, cooling,or alarm, lay: changeover (2A, 264 Vac max.) DC control: Isolated (10V, 20mA max.) + − Heating, or cooling 24Vdc transmitter supply + − To power process inputs +0.
Marathon Monitors Inc. Connections for Process Value 3 in module position 3 Thermocouple Resistance thermometer mA input 3A 3A 3A 3B 3B 3B 3C 3C 3C 3D 3D 3D Volts or mV inputs Current sense resistor 2.49Ω + 10V inputs 3A 3A 3B 3B + 0-10Vdc 3C + 0-1.6Vdc 3C High Impedance − 3D − or mVdc − 3D - Figure 1-8 Connections for Process Value 2 (PV2) The diagrams above show the connections for the various types of input.
Marathon Monitors Inc. Communication module 1 The Models AACC 2000 will accept a plug-in communications modules. The possible module types are shown in the table below. The serial communications can be configured for either Modbus, or MMI protocol.
Marathon Monitors Inc. Wiring of 2-wire EIA-485 serial communications link PC Com TX RX RX TX 2-wire EIA-485 is a connection which allows up to 32 controllers to be multi-dropped from a single communications link over a distance of up to 1.2Km.
Marathon Monitors Inc. AACC 2000 Carbon 22 Nov.
Marathon Monitors Inc. OPERATION This chapter has nine topics: • FRONT PANEL LAYOUTS • BASIC OPERATION • OPERATING MODES • AUTOMATIC MODE • MANUAL MODE • PARAMETERS AND HOW TO ACCESS THEM • NAVIGATION DIAGRAM • PARAMETER TABLES • ALARMS AACC 2000 Carbon 23 Nov.
Marathon Monitors Inc. FRONT PANEL LAYOUTs Figure 2-1 Model AACC 2000 front panel layout 26.0 20.0 Page Button AACC 2000 Carbon Scroll Button Down Button 24 Up Button Nov.
Marathon Monitors Inc. Button or indicator Name Explanation OP1 Output 1 When lit, it indicates that the output installed in module position 1 is on. This is normally the heating output on a temperature controller. OP2 Output 2 When lit, it indicates that the output installed in module position 2 is on. This is normally the cooling output on a temperature controller. SP2 Setpoint 2 When lit, this indicates that setpoint 2, (or a setpoint 3-16) has been selected.
Marathon Monitors Inc. Basic operation Switch on the power to the controller. It runs through a self-test sequence for about three seconds and then shows the process value, in the upper readout and the setpoint, in the lower readout. This is called the Home display. 26.0 Process Value (PV) 20.0 Setpoint Figure 2-4 Home display or buttons. Two seconds after You can adjust the setpoint by pressing the releasing either button, the display blinks to show that the controller has accepted the new value.
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.
Marathon Monitors Inc. Automatic mode You will normally work with the controller in automatic mode. If the MAN light is on, press the AUTO/MAN button to select automatic mode. The AUTO light comes on Power on The Home display Check that the AUTO light is on. The upper readout shows the measured temperature. The lower readout shows the setpoint. To adjust the setpoint up or down, press or . (Note: If Setpoint Rate Limit has been enabled, then the lower readout will show the active setpoint.
Marathon Monitors Inc. MANUAL MODE If the AUTO light is on, press the AUTO/MAN button to select manual mode. The MAN light comes on. Power on The Home display Check that the MAN light is on. The upper readout shows the measured temperature, or process value. The lower readout shows the % output. To adjust the output, press or . . (Note: If Output Rate Limit has been enabled, then the lower readout will show the working output. If or .
Marathon Monitors Inc. PARAMETERS AND HOW TO ACCESS THEM Parameters are settings, that determine how the controller will operate. For example, alarm setpoints are parameters that set the points at which alarms will occur. For ease of access, the parameters are arranged in lists as shown in the navigation diagram on Pages 2-10 and 2-11.
Marathon Monitors Inc. can return to the current list header at any time can by pressing the next list header, press once again. AACC 2000 Carbon 31 . To step to Nov.
Marathon Monitors Inc. Parameter names In the navigation diagram, each box shows the display for a selected parameter. The Operator parameter tables, later in this chapter, list all the parameter names and their meanings. The navigation diagram shows all the parameters that can, potentially, be present in the controller. In practice, a limited number of them appear, as a result of the particular configuration. The shaded boxes in the diagram indicate parameters that are hidden in normal operation.
Marathon Monitors Inc. Navigation Diagram (Part A) (THE PARAMETERS THAT APPEAR DEPEND UPON HOW THE CONTROLLER HAS BEEN CONFIGURED) Home List Probe List Alarm List Care List USEr 20.0 20.0 Prob LIST LIST CArE AL LIST LIST n1 OP 100.0 m-A Auto rEF 1 PF 0.1 OFFS 0.01 H-CO 10.0 Ptc 10 n2 n3 0.1 tmin 0.1 n4 0.1 Pti 1OFF n5 0.1 AIin Ptrt 1--1 2--1 3--1 4--1 HY 1 1 10.0 HY 2 10.0 1 n15 0.1 bot HY 3 1 15.0 bort HY 4 FDE Lbt 1 10.0 OFF 5.0 t2C 0.
Marathon Monitors Inc. PID List Motor List Setpoint List Atu Pid mtr SP tunE G.SP tm SSEL Adc SEt In.t SP 1 bAcT SP 2 Autotune List n OFF mAn LiSt LiSt 500 PID.1 Pb Ti.2 300 30.0 Td.2 500 OFF rES.2 5 Ti 300 Td 60.0 rES 0.0 Hcb Auto Lcb Auto 0.0 OFF Hcb2 mP.T Auto Auto Lcb2 U.br Auto DWn LiSt SP 1 20.0 0.0 SPL 0.0 SPH 100.0 rEL.2 1.00 SP2L 0.0 FF.Pb 0.0 SP2H 100.0 FF.du 100.0 SPrr OFF rEL HbtY OFF Pb2 10 AACC 2000 Carbon 34 Nov.
Marathon Monitors Inc. Input List iP OFF FLt.2 Comms List oP cmS inF Addr diSP LiSt LiSt LiSt FiLT Output List cjc1 0 db 0.0 L1.1 0 1P.1 OP.Lo L1.2 0.0 OP.Hi Sb.OP 100.0 100.0 1 Information List o STD LoG.L 0.0 OPrr LoG.H FOP LoG.A CYC.1 LoG.T ofs1 hYS.1 LoG.u ofs2 onT.1 rES.L mv.1 CYC.2 mCT mv.2 hYS.2 w.OP mv.3 onT.2 FF.OP PU.1P OFF FLT.3 OFF CAL FACT 0 100.0 OFF L1.3 0 PVSL 1P1 0F 0 0 0 0 AACC 2000 Carbon 50.0 0.0 100.0 20.0 0.0 1.
Access List ACCS P OP LiST 19 1 OP codE 10 PASS d OP GoTo 1.
Marathon Monitors Inc. PARAMETER TABLES Name Description Home list Home Measured value and Setpoint % Output level OP Target setpoint (if in Manual mode ) SP Auto-man select m-A Customer defined identification number reF + Extra parameters, if the ‘Promote’ feature has been used (see Chapter 3, Edit Level).
Marathon Monitors Inc. Name Description User n1 n2 n3 n4 n5-15 User list user parameter #1 user parameter #2 user parameter #3 user parameter #4 user parameter #5 - 15 Name Description AL 1--- Alarm list Alarm 1 setpoint value 2--- Alarm 2 setpoint value 3--- Alarm 3 setpoint value 4--- Alarm 4 setpoint value In place of dashes, the last three characters indicate the alarm type.
Marathon Monitors Inc. tunE One-shot autotune enable drA Adaptive tune enable drA.t Adaptive tune trigger level in display units. Range = 1 to 9999 Adc Automatic Droop Compensation (PD control only) AACC 2000 Carbon 39 Nov.
Marathon Monitors Inc. Name Description Pid G.SP PID list If Gain Scheduling has been enabled (see Chapter 4), this parameter sets the PV below which ‘Pid.1’ is active and above which ‘Pid.2’ is active. SEt ‘Pid.1’ or ‘Pid.2’ selected Pb Proportional Band (SEt 1) (in display units) ti Integral Time in secs(SEt 1) td Derivative Time in secs (SEt 1) rES Manual Reset (%) (SEt 1) Hcb Cutback High (SEt 1) Lcb Cutback Low (SEt 1) rEL.
Marathon Monitors Inc. Name Description SP Setpoint list SSEL Select SP 1 to SP16, depending on configuration SP 1 Setpoint one value SP 2 Setpoint two value SP L Setpoint 1 low limit SP H Setpoint 1 high limit SP2.L Setpoint 2 low limit SP2.H Setpoint 2 high limit SPrr Setpoint Rate Limit Hb.ty Holdback Type for setpoint rate limit (OFF, Lo, Hi, or bAnd) iP Input list FiLt IP1 filter time constant (0.0 - 999.9 seconds). FLt.2 IP2 filter time constant (0.0 - 999.9 seconds). PV.
Marathon Monitors Inc. Name Description Output list oP Does not appear if Motorised Valve control configured. Low power limit (%) OP.Lo High power limit (%) OP.Hi Output Rate Limit (% per sec) OPrr Forced output level (%) FOP Heat cycle time (0.2S to 999.9S) CYC.H Heat hysteresis (display units) hYS.H Heat output min. on-time (secs) ont.H Auto (0.05S), or 0.1 - 999.9S Cool cycle time (0.2S to 999.9S) CYC.C Cool hysteresis (display units) hYS.C Cool output min. on-time (secs) ont.C Auto (0.05S), or 0.
Marathon Monitors Inc. Name Description inFo Information list - continued rES.L Logging Reset - ‘YES/no’ The following set of parameters is for diagnostic purposes. Processor utilisation factor mCt Working output w.OP FF.
Marathon Monitors Inc. Alarms Alarm annunciation Alarms are flashed as messages in the Home display. A new alarm is displayed as a double flash followed by a pause, old (acknowledged) alarms as a single flash followed by a pause. If there is more than one alarm condition, the display cycles through all the relevant alarm messages. Table 2-1 and Table 2-2 list all of the possible alarm messages and their meanings.
Marathon Monitors Inc. Diagnostic alarms These indicate that a fault exists in either the controller or the connected devices. Display shows What it means What to do about it EE.Er Electrically Erasable Memory Error: The value of an operator, or configuration, parameter has been corrupted. This fault will automatically take you into Configuration level. Check all of the configuration parameters before returning to Operator level.
Marathon Monitors Inc. Table 2-2b Diagnostic alarms AACC 2000 Carbon 46 Nov.
Marathon Monitors Inc. ACCESS LEVELS This chapter describes the different levels of access to the operating parameters within the controller. There are three topics: • THE DIFFERENT ACCESS LEVELS • SELECTING AN ACCESS LEVEL • EDIT LEVEL THE DIFFERENT ACCESS LEVELS There are four access levels: • Operator level, which you will normally use to operate the controller. • Full level, which is used to commission the controller.
Marathon Monitors Inc. SELECTING AN ACCESS LEVEL Access to Full, Edit or Configuration levels is protected by a password to prevent unauthorised access. If you need to change the password, see Chapter 6, Configuration. Access list header Press until you reach the access list header ‘ACCS’. Press Password entry The password is entered from the ‘codE’ display. Enter the password using or .
Marathon Monitors Inc. Level selection The ‘Goto’ display allows you to select the required access level. Use and to select from the following display codes: OPEr: Operator level FuLL: Full level Edit: Edit level conF: Configuration level Press If you selected either ‘OPEr’, ‘FuLL’ or ‘Edit’ level you will be returned to the ‘ACCS’ list header in the level that you chose. If you selected ‘conF’, you will get a display showing ‘ConF’ in the upper readout (see below).
Marathon Monitors Inc. Returning to Operator Level To return to operator level from either ‘FuLL’ or ‘Edit’ level, repeat entry of the password and select ‘OPEr’ on the ‘Goto’ display. In ‘Edit’ level, the controller will automatically return to operator level if no button is pressed for 45 seconds. Edit level Edit level is used to set which parameters you can view and adjust in Operator level.
Marathon Monitors Inc. Promoting a parameter Scroll through the lists to the required parameter and choose the ‘PrO’ code. The parameter is then automatically added (promoted) into the Home display list. (The parameter will also be accessible, as normal, from the standard lists.) A maximum of twelve parameters can be promoted. Promoted parameters are automatically ‘alterable’. AACC 2000 Carbon 51 Nov.
Marathon Monitors Inc. This sheet intentionally left blank AACC 2000 Carbon 52 Nov.
Marathon Monitors Inc. TUNING Before tuning, please read Chapter 2, Operation, to learn how to select and change a parameter. This chapter has five topics: • • • • • WHAT IS TUNING? AUTOMATIC TUNING MANUAL TUNING COMMISSIONING OF MOTORISED VALVE CONTROLLERS GAIN SCHEDULING WHAT IS TUNING? In tuning, you match the characteristics of the controller to those of the process being controlled in order to obtain good control.
Marathon Monitors Inc. AUTOMATIC TUNING Two automatic tuning methods are provided in the AACC 2000: • A one-shot tuner, which automatically sets up the initial values of the parameters listed in Table 4-1 on the previous page. • Adaptive tuning, which continuously monitors the error from setpoint and modifies the PID values, if necessary. One-shot Tuning The ‘one-shot’ tuner works by switching the output on and off to induce an oscillation in the measured value.
Marathon Monitors Inc. Typical automatic tuning cycle Process Variable Setpoint Time Calculation of the cutback values Low cutback and High cutback are values that restrict the amount of overshoot, or undershoot, that occurs during large step changes in process variable (for example, under start-up conditions). If either low cutback, or high cutback, is set to ‘Auto’ the values are fixed at three times the proportional band, and are not changed during automatic tuning.
Marathon Monitors Inc. MANUAL TUNING If for any reason automatic tuning gives unsatisfactory results, you can tune the controller manually. There are a number of standard methods for manual tuning. The one described here is the Ziegler-Nichols method. With the process at its normal running process variable: 1. Set the Integral Time ‘ti’ and the Derivative Time ‘td’ to OFF. 2. Set High Cutback and Low Cutback, ‘Hcb’ and ‘Lcb’, to ‘Auto’. 3.
Marathon Monitors Inc. Setting the cutback values The above procedure sets up the parameters for optimum steady state control. If unacceptable levels of overshoot or undershoot occur during start-up, or for large step changes in process variable, then manually set the cutback parameters ‘Lcb’ and ‘Hcb’. Proceed as follows: 1. Set the low and high cutback values to three proportional bandwidths (that is to say, Lcb = Hcb = 3 x Pb). 2.
Marathon Monitors Inc. Integral action and manual reset In a full three-term controller (that is, a PID controller), the integral term ‘ti’ automatically removes steady state errors from the setpoint. If the controller is set up to work in two-term mode (that is, PD mode), the integral term will be set to ‘OFF’. Under these conditions the measured value may not settle precisely at setpoint.
Marathon Monitors Inc. Motorized valve control The AACC 2000 can be configured for motorised valve control as an alternative to the standard PID control algorithm. This algorithm is designed specifically for positioning motorised valves. These are ordered pre-configured as Model numbers: • 2000/VC motorised valve controllers • 2000/VP motorised valve controllers with a single setpoint programmer • 2000/V4 motorised valve controllers storing four setpoint programs.
Marathon Monitors Inc. COMMISSIONING THE MOTORISED VALVE CONTROLLER The commissioning procedure is the same for both bounded and boundless control modes, except in bounded mode you must first calibrate the position feedback potentiometer, as described in the section below. Proceed as follows: 1. Measure the time taken for the valve to be raised from its fully closed to its fully open position and enter this as the value in seconds into the ‘tm’ parameter. 2.
Marathon Monitors Inc. configuration list. ‘func’ should be set to ‘Vpos’, ‘VAL.L’ must be set to ‘0’ and ‘VAL.H’ to ‘100’. Exit from configuration and you are now ready to calibrate the position feedback potentiometer. Proceed as follows. 1. In Operator level, press the AUTO/MAN button to put the controller in Manual mode. 2. Drive the valve to its fully open position using . 3. Press until you get to ‘ip-List’. 4. Press to get to ‘PCAL-OFF’. 5. Press or to turn ‘PCAL’ to ‘on’. 6.
Marathon Monitors Inc. Gain scheduling Gain scheduling is the automatic transfer of control between one set of PID values and another. In the case of the AACC 2000 controllers, this is done at a presettable process value. It is used for the more difficult to control processes which exhibit large changes in their response time or sensitivity at, for example, high and low process variables, or when heating or cooling. The AACC 2000 has two sets of PID values.
Marathon Monitors Inc. CONFIGURATION This chapter consists of six topics: • SELECTING CONFIGURATION LEVEL • LEAVING CONFIGURATION LEVEL • SELECTING A CONFIGURATION PARAMETER • CHANGING THE PASSWORDS • NAVIGATION DIAGRAM • CONFIGURATION PARAMETER TABLES. In configuration level you set up the fundamental characteristics of the controller. These are: • The type of control (e.g.
Marathon Monitors Inc. Selecting configuration level There are two alternative methods of selecting Configuration level: • If you have already powered up, then follow the access instructions given in Chapter 3, Access levels. Alternatively, press and together when powering up the controller. This will take you directly to the ‘ConF’ password display. Password entry When the ‘ConF’ display appears, you must enter the Configuration password (which is a number) in order to gain access to Configuration level.
Marathon Monitors Inc. LEAVING CONFIGURATION LEVEL To leave the Configuration level and return to Operator level Press ‘Exit’ display appears. Alternatively, pressing and until the together will take you directly to the ‘Exit’ display Use or to select ‘YES’. After a twosecond delay, the display will blank and revert to the Home display in Operator level. SELECTING A CONFIGURATION PARAMETER The configuration parameters are arranged in lists as shown in the navigation diagram in Figure 6.1. button.
Marathon Monitors Inc. NAVIGATION DIAGRAM (PART A) Instrument List Process Value List Input Config List PU inST iP Setpoint Config SP AL LiSt ConF ConF 2rFn uniT inPT nSP AL1 dEc.p CJC rmTr LTch rnGL imP m.Tr bLoc rmPU AL2 rmT LTch CArB CTrL Pid TYPE ctrL AcT REU cool LIN TiTd Fwd.t none SbrT SB.
Marathon Monitors Inc. Logic Config LAb ConF AL4 id Alarms Config Comms1 Config AA Ha ConF ConF id id Comms2 Config JA ConF id Module1 Config 1A ConF id FSH LoG RELY CMS LTch Func Func Func Func SEnS bAud UaL.L IFSH PrTY UALH 2FSL rES uniT AL3 dELY OuTL on Man bLoc on nor nor 9600 yes nonE no FuLL no no AL4 NONE dCrE OP1 0 100 mA 4.0 OuTH no 20.0 Plus Event Outputs AACC 2000 Carbon 67 Nov.
Marathon Monitors Inc. Module2 Config 2A ConF id Module3 Config 3A ConF id Module4 Config Module Config 4A 4C ConF ConF id id Module Config 5A ConF id Module Config 5C ConF id dCrE dCrE rELY rELY rELY rELY Func Func Func Func Func Func UaL.
Marathon Monitors Inc. Module Config 6A ConF id rELY Func PMV inPT HiLn imP Auto inPL -0.2 inPH 1.8 Custom Config CUST ConF in1 Calibration Config Password Config CAL PASS ConF ConF cAL ACCP UAL1 UCAL cnFP in2 Pt1L UAL2 Pt1H in3 OF1L UAL.3 OF1H 0.0 0.0 1.0 200.0 2.0 350.0 nonE NO 0.0 Pt2L UALH Pt2H 1800 Exit 0.0 UALL -200 Exit in8 7.0 OF2L 0.0 UAL.8 800.0 OF2H 0.0 AACC 2000 Carbon 69 Nov.
Marathon Monitors Inc. CONFIGURATION PARAMETER TABLES Name Description Values Meaning inSt ZrFn Instrument configuration Instrument Function Carb % Carbon CtrL Control type Pid On.OF VP PID control On/off control Boundless motorised valve control - no feedback required Bounded motorised valve control - feedback required Controller Monitor Reverse acting Direct acting Linear Oil (50mS minimum ontime) Water (non-linear) Fan (0.
Marathon Monitors Inc. gsch Gain schedule enable pV unit Process value config Inststrument units dec.p Decimal places in the displayed value rng.l Range low rng.h Range high Name iP inPt Description Input configuration Input type * see “CUST” List. Name Description CJC Cold Junction Compensation imp Sensor Break Impedance AACC 2000 Carbon no yes 0 Disabled Enabled C F 0 k none nnnn nnn.n nn.nn Celsius Farenheit Kelvin Display units blanked None One Two Low range limit.
Marathon Monitors Inc. Linear Input Scaling − The next 4 parameters only appear if a linear or sq rt input is chosen. inp.L inp.H Input value low Displayed Value VAL. H Input value high VAL.L VAL.H Displayed reading low VAL. L inP.L inP.H Electrical Input Displayed reading high Name Description Values Meaning SP nSP Setpoint configuration Number of setpoints 2, 4, 16 Select number of setpoints available rm.tr Remote Tracking OFF trAc Disable Local setpoint tracks remote setpoint m.
Marathon Monitors Inc. AL Alarm configuration Values The controller contains four ‘soft’ alarms, which are configured in this list. Once configured, they can be attached to a physical output as described in the alarm relay configuration list, ‘AA Conf’.
Marathon Monitors Inc. Name Description LA id Func Digital input 1 configuration Identity Function of input The function is active when the input has a contact closure to the common terminal - LC Values LoG.i nonE mAn rmt SP.2 Pid.2 ti H tunE drA Ac.AL AccS Loc.b uP dwn ScrL PAGE These BCD inputs are used to select either a program number or the setpoint number according to the setting of the parameter ‘bcd’ in the ‘inSt’ configuration list bcd.1 bcd.2 bcd.3 bcd.4 bcd.5 bcd.6 Stby PV.
Marathon Monitors Inc. Name Description Values AA Alarm relay configuration id Identity rELy Relay output Func Function nonE dIG No function Digital output SEnS Digital output sense nor Normal (output energises when TRUE, e.g. program events) Inverted (output de-energises when TRUE, e.g. alarms) inv Meaning The following digital events appear after ‘SEnS’. Any one, or more, of the events can be combined on to the output (see Fig. 6-2) by selecting ‘YES’ in the lower readout.
Marathon Monitors Inc. Digital Events nor OR dIG SEnS inv Output Module Figure 6-2 Combining several digital events on to one output Name Description HA Comms 1 module config id Identity of the module installed Values Meaning cmS 2-wire EIA-485 For ‘id id’ = ‘cms’ (Digital communications) use this parameter table: Func Function mod mAr bAud Baud Rate 1200, 2400, 4800, 9600, 19.
Marathon Monitors Inc. module config JA NO configuration required Name 1A/b 1A b /C C id Description (1) Values Meaning Module 1 configuration Identity of module installed (1) If a dual-, or triple-, channel module is installed then the list headers 1b and 1C also appear nonE rELy dC.OP LoG LoG.i SSr dc.rE Module not fitted Relay output Non-isolated DC output Logic/ output Logic input Triac output DC retransmission (isolated) Isolated DC output dc.
Marathon Monitors Inc. 2. To invert a PID output, the Val. H can be set below the Val.L Name Description Values Meaning For ‘id id’ = ‘dC.OP’, ‘dc.rE’, or ‘dc.OP’ use this parameter table: Func VAL.L nonE HEAt COOL PV wSP Err OP Function % PID, or Retrans’n Value, giving minimum output %PID, or Retransmission Value VAL.H VAL.H % PID, or Retrans’n Value, giving maximum output Electrical Output unit Out.L Out.
Marathon Monitors Inc. For ‘id id’ = ‘Pot.i (i.e. potentiometer input module) use this parameter table: Func nonE rSP Fwd.i rOP.h rOP.L VPoS Function Displayed value low equivalent to 0% potentiometer position Displayed Value VAL.L VAL.H VAL.H VAL.L inP.L AACC 2000 Carbon Function disabled Remote Setpoint Feedforward input Remote OP power max. Remote OP power min. Motorised valve position inP.H 79 Electrical Input Displayed value high equivalent to 100% potentiometer position Nov.
Marathon Monitors Inc. 3A/b 3A b /C C Module 3 configuration As per module 2 configuration, plus ‘id’ = ‘dC.iP’ For ‘id id’ = ‘dC.iP’ use this parameter table. THIS INCLUDES THE SECOND PV FUNCTIONS Func Function nonE rSP Fwd.i rOP.h rOP.L Hi Lo Ftn SEL trAn Function disabled Remote Setpoint Feedforward input Remote OP power max. Remote OP power min. PV = The highest of iP.1, or iP.2 PV = The lowest of iP.1, or iP.2 Derived function, where PV = (f.1 x iP1) + (f.2 x iP2). ‘F.1’ and ‘F.
Marathon Monitors Inc. Linear Input Scaling − The next four parameters only appear if a linear input is chosen. inP.L inP.H Displayed value Input value low VAL.H Input value high VAL.L VAL.H Name 4 A /C C Displayed value low Potentiometer position VAL.
Marathon Monitors Inc. Cust 8-point Custom Linearisation (1) in 1 VAL.1 Custom input 1 Displayed Value Linearisation Value representing in 1 VAL.8 in 8 VAL.8 VAL.3 VAL.1 Custom input 8 in 1 in 3 in 8 Electrical Input Linearisation Value representing in 8 Note: 1. Custom Linearisation is only available when ‘3a-Conf’or iP- ConF list has ‘inpt’ set to ‘mV.C’, or ‘mA.C’, or ‘V.C’. 1. The values and inputs must be continuously increasing or decreasing AACC 2000 Carbon 82 Nov.
Marathon Monitors Inc. Name CAL Description Values Meaning Calibration In this mode you can 1. Calibrate the instrument using a mV source - rcAL or ref source cal. 2. Offset the calibration to account for errors in actual sensor measurement and a ref sensor - UCAL or user calibration 3. Return to factory set calibration - FACT or factory set calibration. Calibration No calibration rcAL nonE point PV PV.2 Calibrate main Process Value input. Calibrate DC input, or PV 2. 1A.Hi 1A.Lo 2A.Hi 2A.Lo 3A.
Marathon Monitors Inc. Select ‘YES’ with or Wait for calibration to complete. YES Start calibration buSy donE FAIL Busy calibrating PV input calibration completed Calibration failed Note. When a DC input module is installed for the first time, or there is a requirement to change one, then the microprocessor in the controller needs to read the factory calibration data stored in the module. Select ‘FACt’ as the calibration value. Step to ‘GO’ and start calibration.
Marathon Monitors Inc. User calibration This chapter has five topics: • WHAT IS THE PURPOSE OF USER CALIBRATION? • USER CALIBRATION ENABLE • OFFSET CALIBRATION • TWO POINT CALIBRATION • CALIBRATION POINTS AND CALIBRATION OFFSETS To understand how to select and change parameters in this chapter you will need to have read Chapter 2 - Operation, Chapter 3- Access Levels and Chapter 6 - Configuration.
Marathon Monitors Inc. User Calibration Enable The User calibration facility must first be enabled in configuration level by setting the parameter ‘UCAL' in the input conf list to 'YES'. This will make the User calibration parameters visible in Operator ‘FuLL’ level. Select configuration level as shown in Chapter 5, Configuration. The Calibration Configuration List until you reach the ‘CAL-Conf’ list. Press Press until you reach ‘UCAL’.
Marathon Monitors Inc. Offset calibration Offset calibration is used to apply a single fixed offset over the full display range of the controller. Displayed Value Factory Calibration Fixed Offset Input To calibrate, proceed as follows: 1. Connect the input of the controller to the source device to which you wish to calibrate. 2. Set the source to the desired calibration value. 3. The controller will display the current measurement of the value. 4.
Marathon Monitors Inc. Set Offset 1 or to set the offset value of Process Use Value 1 (PV1). The offset value is in display units Press Set Offset 2 or to set the offset value of Use Process Value 2 (PV2), if configured. The offset value is in display units. Press The table below shows the parameters which appear after ‘OFS.2’. These are all read only values and are for information. Press through them. See table on the right for additional parameters. to step mV.
Marathon Monitors Inc. Two-point calibration The previous section described how to apply a offset, or trim, calibration, which applies a fixed offset over the full display range of the controller. A two-point calibration is used to calibrate the controller at two points and applies a straight line between them. Any readings above, or below, the two calibration points will be an extension of this straight line. For this reason it is best to calibrate with the two points as far apart as possible.
Marathon Monitors Inc. Select Low-point Calibration This is the Calibration Status display. This display shows that no input is selected for calibration. • nonE: No selection • ip1.L: Input 1 (PV1) calibration low-point selected • ip1.H: Input 1 (PV1) calibration high-point selected • ip2.L: Input 2 (PV2) calibration low-point selected • ip2.H: Input 2 (PV2) calibration high-point selected Use / to select the parameter for the Low Calibration point of Input 1, ‘ip1.L’.
Marathon Monitors Inc. Select High-point Calibration This is the Calibration Status display, again. Use / to select the parameter for the High-point Calibration of Input 1, ‘ip1.H’. Press Adjust High-point Calibration This is the display for adjusting the High Calibration point of Input 1. The lower readout is a live reading of the process value, which changes as the input changes. Feed the desired high-point calibration signal to the controller, from the calibration source.
Marathon Monitors Inc. Calibration points and Calibration offsets If you wish to see the points at which the User calibration was performed and the value of the offsets introduced, then these are shown in Configuration, in ‘CALConf’. The parameters are: Name Parameter description Meaning pt1.L Low calibration point for Input 1 The factory calibration point at which the low point offset was performed. pt1.
Marathon Monitors Inc.
Marathon Monitors Inc.
Marathon Monitors Inc. PID List Gain Scheduler Setpoint Current PID Set Proportional Band PID1 Intergal Time PID1 Derivative Time PID1 Manual Reset Cutback High Cutback Low PID1 Relative Cool Gain PID1 Proportional Band PID2 Intergal Time PID2 Derivative Time PID2 Manual Reset PID2 Cutback High PID2 Cutback Low PID2 Relative Cool Gain PID2 FeedForward Proportional Band FeedForward Trim Limit G.SP Set Pb ti td rES Hcb Lcb rEL.C Pb2 ti2 td2 rES2 Hcb2 Lcb2 rEL2 FF.Pb FF.
Marathon Monitors Inc. Input List Filter 1 Filter 2 Filter 3 Calibration CJC Temperature FiLt FLt2 FLT3 CAL CJC Output List Low Power Limit High Power Limit Output Rate Limit Forced Output Power Cycle time OP1 Hysteresis OP1 OP1 Minimum On Time Cycle time OP2 Hysteresis OP1 OP2 Minimum On time Deadband Sensor Break Output Power OP.Lo OP.Hi Oprr FOP CYC.1 hYS.1 ont.1 CYC.2 hYS.2 ont.2 db Sb.
Marathon Monitors Inc. Configuration Mode Parameters Inst Conf Function: O2, %C, Dewpoint, Redox Control Type Instrument type: Monitor/Controller Control Action Control Time Units Manual Key Enable dtYP Feedforward Type Bumpless PD Control Sensor Break Action Forced Manual Availability BCD Input Function Gain Scheduling Zr.Fn CtrL tYPE Act ti.td m-A dtYP Fwd.t Pd.tr Sbr.t FOP bcd Gsch PV Conf Instrument Units Display Resolution Exponent Setpoint Minimum Setpoint maximum dEc.P ExP rnG.L rnG.
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Marathon Monitors Inc. Module 2A Conf Module 2A Ident Module 2A Slot Function Module 2A Low Value Module 2A High Value Output 2A units Module 2A Low Output Range Module 2A High Output Range id Func VAL.L VAL.H unit Out.L Out.H Module 3A Conf Module 3A Ident Module 3A Slot Function Module 3A Input Type Module 3A Sensor break Impedance Module 3A Input Value Low Module 3A Input Value High Module 3A Displayed Value Low Module 3A Displayed Value High id Func inPt iMP inP.L inP.H VAL.L VAL.
Marathon Monitors Inc. Module 6A Conf Module 6A Ident Module 6A Slot Function Module 6A Input Type Module 6A Sensor break Impedance Module 6A Input Value Low Module 6A Input Value High Module 6A Displayed Value Low Module 6A Displayed Value High id Func inPt iMP inP.L inP.H VAL.L VAL.H CUST Conf Input 1 Value 1 Input 2 Value 2 Input 3 Value 3 Input 4 Value 4 Input 5 Value 5 Input 6 Value 6 Input 7 Value 7 Input 8 Value 8 in 1 VAL.1 in 2 VAL.2 in 3 VAL.3 in 4 VAL.4 in 5 VAL.5 in 6 VAL.6 in 7 VAL.
Marathon Monitors Inc. Special Parameters ABC Constant Transfer A Constant low 16 bits A Constant high 16 bits B Constant low 16 bits B Constant high 16 bits C Constant low 16 bits C Constant high 16 bits Transfer Location, 0 - 15 Transfer Action; 81=write, 82=read AACC 2000 Carbon 101 Nov.
Marathon Monitors Inc. INDEX ACCESS LEVELS .......................................................................................... 46 Adaptive tune .......................................................................................38, 54, 73 Adjust low-point calibration ..................................................................... 89 Adjusting the minimum on-time...................................................................... 59 Alarm types...............................................
Marathon Monitors Inc. Two-point calibration .................................................................................... 88 User calibration ............................................................................................... 84 AACC 2000 Carbon 103 Nov.
