SERIES C 1ZC 16C 18C 19C 25C • • • • TEMPERATURE / PROCESS CONTROLLER Configuration and Operation Manual
Athena is a registered trademark and Multi-Comm is a trademark of Athena Controls, Inc. Platinel is a trademark of Engelhard Minerals & Chemical Corporation. MODBUS is a registered trademark of AEG Schneider Automation, Inc. 2001. Athena Controls, Inc. All rights reserved.
Precautions Warning Remove power from the 1ZC controller before removing the terminal strip from the controller. Remove power from the 1ZC controller before removing the bezel and circuit board assembly from the case. Do not power up the 1ZC controller while the bezel and circuit board assembly is out of the case. Remove power from a controller before cleaning the exterior of the controller. Failure to observe these precautions can result in exposure to a potentially lethal shock hazard.
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Table of Contents 1. Introduction.............................................................................................. 1-1 1.1 About this Manual.......................................................................................... 1-1 1.1.1 What It Contains ..................................................................................... 1-1 1.1.2 What to Read ......................................................................................... 1-2 1.
Series C Controller Configuration and Operation Manual 1.9 What Happens When You Power Up the Controller ..................................... 1-17 1.9.1 Outputs................................................................................................. 1-17 1.9.2 Display ................................................................................................. 1-17 1.9.3 Setpoint ................................................................................................ 1-17 1.
Table of Contents 5. Input Parameters – Required.................................................................. 5-1 5.1 Introduction ................................................................................................... 5-1 5.2 Calibration Must Be Appropriate for Input Type.............................................. 5-1 5.3 Input Jumper Settings Must Match Input Type ............................................... 5-2 5.4 Input Menu Parameter List.........................................
Series C Controller Configuration and Operation Manual 8. Control Parameters – Required If Outputs Are Used for Control......... 8-1 8.1 Introduction ................................................................................................... 8-1 8.2 Configuring Control Parameters for On/Off Control ........................................ 8-3 8.2.1 Introduction............................................................................................. 8-3 8.2.
Table of Contents 11.4.3 Configuring Individual Recipe Segments............................................. 11-11 11.4.3.1 Specifying the Ramp Time for Each Step of a Multi-Step Recipe.. 11-11 11.4.3.2 Linking a Ramp Period to an Alarm .............................................. 11-11 11.4.3.3 Specifying the Setpoint for Each Soak in a Multi-Step Recipe....... 11-12 11.4.3.4 Specifying the Length of Each Soak in a Multi-Step Recipe.......... 11-12 11.4.3.5 Linking a Soak Period to an Alarm ............
Series C Controller Configuration and Operation Manual 14.9 Configuring the Remote Analog Setpoint Parameters ................................ 14-12 14.9.1 Introduction......................................................................................... 14-12 14.9.2 Scaling the Input for the Remote Analog Setpoint ............................... 14-12 15. Numbers Used to Identify Parameters in Multi-Comm Messages and Athena Plus Protocol................................................ 15-1 16.
Table of Contents 20. 20.1 20.2 20.3 20.4 20.5 20.6 20.7 20.8 21. Frequently Asked Questions ............................................................. 20-1 Introduction ................................................................................................. 20-1 How do I change from thermocouple to RTD (or vice versa)?....................... 20-1 Why doesn’t the PV displayed match the value on a thermometer in the process? .....................................................................
Series C Controller Configuration and Operation Manual viii Athena Controls, Inc.
1. Introduction 1.1 About this Manual 1.1.1 What It Contains This manual contains all the information needed to configure and operate the 1ZC, 16C, 18C, and 25C controllers. (The 19C is functionally identical to the 18C.
Series C Controller Configuration and Operation Manual 1.1.2 What to Read This manual contains a comprehensive discussion of all the controller functions. Some of the information may not apply to your situation. If you are a process operator, read Sections 1, 2, and 19. If the controller does not behave as you expect, read Section 20.
Introduction menu access – used to access the menu system; within the menu system it is used to move from menu to menu up and down – used to change numeric values and to scroll through lists of configuration choices The front panel of the 16C, 18C, and 25C controllers includes LEDs that are used for alarm annunciation, as well as to signal which controller functions are active. See Section 2 for more information about the user interface. 1.2.
Series C Controller Configuration and Operation Manual 1.2.6 Serial Communications The 1ZC model always supports an RS-485 serial communications interface. The 16C, 18C, and 25C are all available with an optional RS-485 serial communication interface. (When ordering the controller you can select processor board firmware for either MODBUS protocol or Athena Plus protocol to work with the RS-485 interface.) An RS-232 serial communication interface is available as an option for the 16C, 18C, and 25C models.
Introduction 1.3 Modes of Operation 1.3.1 Control Modes Unless both standard outputs are set to off or ALR (alarm), the 1ZC, 16C, 18C, and 25C controllers support several modes of operation for control, as well as a special mode used to tune the unit automatically for PID control.2 The table below summarizes the control modes and shows the display used to select each. Instructions for using the keypad to display and change the mode are in 2.4. The operational display for each mode is in 2.2.1.
Series C Controller Configuration and Operation Manual 1.3.2 Configuration In addition to the operating displays associated with the control modes described in 1.3.1 above, the 16C, 18C, and 25C can display configuration parameters. The parameters are grouped by purpose and organized in menus. Instructions for viewing and changing configuration parameter values are in 2.4.8.
Introduction 1.4 Security The 16C, 18C, and 25C controllers can be configured to limit the values that can be changed using the keypad. For example, the access level can be set to allow operators to change only the setpoint or the manual mode output percentage. A controller can be set to any of the access levels in the table below. The sequence of levels in the table is from most restrictive to least restrictive.
Series C Controller Configuration and Operation Manual 1.5 Control Types Supported 1.5.1 Overview The 1ZC, 16C, 18C, and 25C controllers support PID and on/off control. Autotuning is available for PID control. The type of control for each of the two standard outputs3 is specified using the output menu output type parameter. The two outputs can be set for different types of control. For 1ZC and 16C controllers, one or both standard outputs can be used for alarm annunciation instead of control. (See 1.
Introduction 1.5.3 On/Off Control On/off control has two states, fully off and fully on. On/off control can be used where: • process is underpowered and has very little heater storage capacity • some temperature oscillation is permissible • electromechanical systems (compressors) make rapid cycling undesireable To prevent rapid cycling, the controllers allow you to configure a deadband and a hysteresis value for on/off control. 1.5.3.
Series C Controller Configuration and Operation Manual 1.5.3.2 Use of Deadband The controllers also permit you to specify a deadband value for each on/off output. In an application where the controller’s two outputs are used to control heating and cooling of the same process, this has the effect of defining a band around the setpoint in which neither the heating nor the cooling output is on. This avoids having the heating and cooling devices working against one another.
Introduction 1.6 Setpoint 1.6.1 Introduction The value of the PV and the setpoint currently being used (“active setpoint”) are always displayed when a 16C, 18C, or 25C controller is operating in normal mode. The setpoint used (and displayed) is not always entered by the operator as described in 2.4.2. • The active setpoint can come from a recipe; see 1.6.2. • The active setpoint can be written to the controller from a host computer; see 1.6.3.
Series C Controller Configuration and Operation Manual 1.6.4 Second Setpoint The 16C, 18C, and 25C controllers are available with an optional contact/digital input switch. If a controller is equipped with the optional contact/digital input, then an external device can trigger the use of a second setpoint. (See 14.8.2 for information about selecting the function of the contact/digital input.) The operator cannot use the front panel of the controller to switch to the second setpoint.
Introduction 1.7 Alarm Annunciation 1.7.1 Using LEDs The 16C, 18C, and 25C controllers all have two alarm LEDs on the front panel. Each of these LEDs is associated with an alarm. Each alarm can be configured to be activated (light the LED) when a specific condition exists. The Alr (alarm) menu is used to configure the alarms associated with the LEDs.
Series C Controller Configuration and Operation Manual • event – This special use of an alarm indicates that the controller has reached a particular point in a ramp/soak recipe. Setting the alarm action to “event” reserves the alarm for use by a ramp/soak recipe. However, the specific recipe event(s) that will trigger the alarm are configured using the r-S (ramp/soak) menu as described in Section 11. 1.7.2 Using an Output to Trigger an External Device 1.7.2.
Introduction Alarms configured using the output menu and alarms configured using the alarm menu are independent of one another. For example, suppose you have a 16C controller that is equipped with two standard outputs (one analog, the other a relay) and an alarm output card with two more relays. You could use the output menu to configure the analog output for PID control and the relay output as a latched process alarm.
Series C Controller Configuration and Operation Manual 1.8 Configuration Sequence Matters The Athena Series C controllers are versatile instruments that are capable of using many types of input values and implementing several types of control strategies. To support this versatility, the Series C controllers are capable of storing values for many configuration parameters. Interrelationships exist between the parameters. Therefore, it is important that you configure the parameters in the correct sequence.
Introduction 1.9 What Happens When You Power Up the Controller 1.9.1 Outputs When the controller is powered up, under some circumstances the outputs may be activated. If the controller has been configured, this is good. However, if the controller is new (not yet configured), then we recommend placing the controller in standby mode until you have configured the controller for your application. For instructions for putting a 16C, 18C, or 25C controller in standby, see 2.4.3.
Series C Controller Configuration and Operation Manual 1.10 Configuration and Startup Activities The following table summarizes the configuration and startup tasks to be accomplished once the controllers are mounted and wired as described in the installation manuals supplied with the instruments. As described in 1.8, configuration sequence does matter, because there are interdependencies among parameters. We recommend configuring the controllers in the sequence shown below.
2. User Interface 2.1 Overview The panel-mounted 16C, 18C, and 25C are all equipped with a bright two-line LED display that is easy to read over wide viewing angles.12 During normal operations the process value is always on display. The setpoint can also be displayed at all times. If you prefer, the setpoint can be “blanked”, that is, it can be turned off after a configurable time period. Pressing any key displays the setpoint again. Information about the other information that can be displayed is in 2.2.
Series C Controller Configuration and Operation Manual 2.2 Display 2.2.1 When in a Control Mode What is displayed when the controller is in one of the control modes described in 1.3.1 depends on the mode and whether the controller detects any problems with the input or with its own operation. The table below summarizes the various combinations of numeric values and abbreviations displayed when the controller is operating.
User Interface What’s Displayed Example Top Line Top Line Lower Line Lower Line Circumstance controller detects a problem with its own operation Err displayed numeric code displayed; see 19.3.2 for the codes Err 0100 Note 1: The controller can be configured to limit the length of time the setpoint is displayed. If the setpoint display blanking parameter is set to a value other than OFF, the setpoint will be displayed for only the configured number of seconds.
Series C Controller Configuration and Operation Manual 2.2.2 During Configuration 2.2.2.1 Introduction When the key has been used to display a menu, you can configure the controller. It is recommended that you put the controller in standby mode as described in 2.4.3 before going into configuration to change parameter values. Putting the controller in standby will ensure that the outputs are off. During configuration the top line of the display contains a menu name.
User Interface Displayed Abbreviation Access Levels Described In input cnF9 (configuration) and FACt (factory) 5 dSPL display cnF9 (configuration) and FACt (factory) 6 OutP output cnF9 (configuration) and FACt (factory) 7 CtrL control USEr (user) and cnF9 (configuration) and FACt (factory) 8 Alr alarm cnF9 (configuration) and FACt (factory) 9 Autotune damping USEr (user) and cnF9 (configuration) and FACt (factory) 10 r-S ramp/soak USEr (user) and cnF9 (configuration) and FACt (fa
Series C Controller Configuration and Operation Manual 2.3 LEDs 2.3.1 On 16C, 18C, 25C Controllers The 16C, 18C, and 25C front panels all contain six LEDs that light under specific circumstances. See the illustration below for the function of each LED. 2-6 Athena Controls, Inc.
User Interface 2.3.2 On 1ZC Controller The end of the 1ZC controller contains six LEDs (above the terminal strip) that light under specific circumstances. See the illustration and table below for the function of each LED. LED Location Function sensor error above terminal 2 Lit when the sensor is disconnected, or the input signal is out of range, or the loop break time is exceeded.
Series C Controller Configuration and Operation Manual 2.4 Using the Keypad 2.4.1 Key Functions The 16C, 18C, and 25C controllers have four keys. The functions of the keys are described below. The rest of this subsection contains instructions for changing the setpoint, viewing and changing the controller’s mode, changing values in the controller’s database, etc. using these keys.
User Interface 900M050U00 Athena Controls, Inc.
Series C Controller Configuration and Operation Manual 2.4.2 Displaying and Changing the Setpoint The setpoint can be changed only when the controller is in normal (automatic) mode or standby mode. (If the PV is alternating with StbY (standby), you can change the setpoint, but the change will not take effect until you put the controller back into normal mode.) To view the current setpoint, if it is not on display because setpoint display blanking is enabled: Press any key briefly.
User Interface 2.4.4 Returning Controller to Normal Operation 1. Press the key until CtrL is displayed on the top line and the current mode’s abbreviation is on the lower line. For example, if the controller is in standby the display will show: CtrL StbY or key to cycle through the modes until nor is on the lower line. 2. Press the The display will show: CtrL nor 3. Press the key again (briefly). The display will show the process value on the top line and the setpoint on the lower line.
Series C Controller Configuration and Operation Manual 5. To write the output 1 percentage to the controller’s database, press the key (briefly). The controller will begin to use the specified fixed output percentage. (The transition from automatic PID to the manual percentage will be “bumpless”.) The lower line display will change to Pct2, alternating with the current value for output 2. 6. Use the and desired percentage. keys to change the manual output 2 value displayed to the key 7.
User Interface 2.4.6 Starting, Pausing, and Terminating Recipe Execution To start execution of the single-setpoint ramp13 or a multi-step recipe: 1. Press the key until CtrL is displayed on the top line and the current mode on the lower line. (All modes are described in 1.3.1.) For example, if the controller is in normal (automatic) mode, pressing the key for approximately three seconds will display: CtrL nor or key to cycle through the modes. If a single-setpoint ramp or 2.
Series C Controller Configuration and Operation Manual • In the case of a multi-step recipe, the top line of the display will change to rS.S1 (ramp/soak soak 1). The recipe will continue to execute, maintaining the setpoint at soak level 1 for the duration of soak time 1. The recipe will then begin to execute the next segment, and the display will change to rS.r2, alternating with the process variable on the top line, and the setpoint on the lower line.
User Interface 2.4.7 Clearing Latched Alarms To clear all latched alarms: Press the key once (briefly). All alarms currently latched will be unlatched if the alarm condition has been cleared. 900M050U00 Athena Controls, Inc.
Series C Controller Configuration and Operation Manual 2.4.8 Working in Configuration Mode 2.4.8.1 Entering and Exiting Configuration Mode We recommend that you put the controller into standby mode as described in 2.4.3, before entering the menu system. To enter configuration mode: Access the configuration menus by pressing and holding the key until a string of letters is displayed on the top line (approximately three seconds). The letters displayed are an abbreviated name of a menu.
User Interface At this point you can: • use the • key to if you like the current value of the parameter on display, you can press the leave the displayed value unchanged and go on through the parameters in the menu), or • press the key once to go to the next menu, then use the the parameters in that menu, or • press the • press and hold the and keys to change the value of the newly displayed parameter, or key to step through key repeatedly to display menus later in the cycle, or key until the
Series C Controller Configuration and Operation Manual 8. To write this new setting to the controller’s database, press the key once. The new setting will be saved and dEC.P (decimal position) will be displayed on the lower line. (The blanking parameter is the last in the display menu, so the controller goes to the top of the menu and shows you the first display parameter, decimal position.) 9.
3. Configuring the Controller – Quick Setup Instructions for PID Control 3.1 Introduction If you are familiar with the 16C, 18C, and 25C controllers and plan to use PID control (the default), the instructions in this section will serve as a quick refresher.
Series C Controller Configuration and Operation Manual 3.2 Quick Instructions The instructions below guide you through the minimum tasks needed to configure the controller for PID control. Unless you change the value of a configuration parameter, the controller will use the factory defaults. The parameters modified using the instructions below are only a few of the parameters available to customize the controller’s operation for your application.
Quick Setup Instructions d) Press to write the choice to the controller’s database. The next parameter in the menu (bIas) will be displayed. Most applications use the default bias value (zero). 3. Specify the output type for output 1. key until OutP (output) is a) While still in the menu system, press the displayed on the top line. b) Once at the output menu, press on the lower line. to display the output 1 type parameter O1.
Series C Controller Configuration and Operation Manual b) Press the key to write the cycle time value to the controller’s database and display the next parameter O1.LL (output 1 low limit). Most applications use the default value. c) Press the key to accept the output 1 low limit default and display the next parameter O1.HL (output 1 high limit). Most applications use the default value. 6. Specify the output type for output 2.
Quick Setup Instructions 9. Make your choice of Autotune damping setting. Use this parameter to specify how aggressively the conroller will perform Autotune. a) Press the key repeatedly until tune is displayed on the top line. b) Display the current setting for the Autotune damping parameter by pressing the key. The parameter abbreviation dPn9 will alternate with the current setting, Lo (low), nL, (normal) or Hi (high). c) Use the or key to display the appropriate setting for your application.
Series C Controller Configuration and Operation Manual 3-6 Athena Controls, Inc.
4. General Information About Configuration Parameters 4.1 Information in This Section This section contains general information about the configuration parameters used by the 1ZC, 16C, 18C, and 25C controllers.19 Sections 5 through 14 contain information about functional groups of parameters. Each section describes the parameters in a single configuration menu.
Series C Controller Configuration and Operation Manual 4.2 How to Use Sections 5 through 14 You do not have to read the all of Sections 5 through 14. You can skip any sections marked “optional” that do not apply to your control strategy. You can also skip some parts of some of the required sections. The path you take as you read will be determined by your control strategy. For example, in Section 5 everyone needs to know about the information in 5.1, 5.2, 5.3, 5.4, and 5.
General Information About Configuration Parameters 4.3 Information Provided About Each Parameter 4.3.1 Summary Each menu consists of a functional group of parameters. For each parameter the following information is provided: • parameter name (and number) – See 4.6 for information about the purpose of this number (or alphanumeric designation).
Series C Controller Configuration and Operation Manual • If a linear input is used and the decimal position is 1, then the range for the parameter is reduced to –199.9 to 999.9. • If a linear input is used and the decimal position is 2, then the range is –19.99 to 99.99. • If a linear input is used and the decimal position is 3 (the maximum for linear inputs), then the range is –1.999 to 9.999. In contrast, when a thermocouple or RTD input is used, the decimal position specified using the dEC.
General Information About Configuration Parameters 4.4 Menu and Parameter Display Sequence The menus and parameters are displayed in the sequence shown below. When the controller is powered up, the menu sequence starts with the InP (input) menu. Within the menus, the parameters are displayed in the sequence shown below. However, not all parameters apply to every control strategy. If a parameter does not apply to a particular control strategy, then that parameter will not be displayed.
Series C Controller Configuration and Operation Manual Displayed Abbreviation (menu name) Described In A2.AA A2.AO A2.d1 A2.IH A2.SP cnF9 (configuration) and FACt (factory) 9 Alr A1.AA A1.AO A1.d1 A1.IH A1.SP tune dPnG USEr (user) and cnF9 (configuration) and FACt (factory) 10 r-S r.OPt S.Srt HLd.b tEr.S rcY.n PF.re rt1 re1 SL1 St1 SE1 . . . rt8 re8 SL8 St8 SE8 USEr (user) and cnF9 (configuration) and FACt (factory) 11 SUPr FS.01 FS.02 L.br.t HI.rd LO.rd Ld.
General Information About Configuration Parameters Displayed Abbreviation (menu name) Parameters Access Levels Described In rAS SCL.L SCL.H cnF9 (configuration) and FACt (factory) 14.8 A.out SCL.L SCL.H Out.U cnF9 (configuration) and FACt (factory) 14.7 (remote analog setpoint) see Note 3 (auxiliary analog output) See Note 4 Note 1: The serial menu is used only if the controller supports serial communications.
Series C Controller Configuration and Operation Manual 4.5 Using Factory Defaults Sections 5 through 14 include the factory default value for every parameter. If you want to use the default for a particular parameter, you do not have to take any action. For example, suppose you want to use the defaults for the setpoint low limit and the setpoint high limit in the input menu. Also, you know that the defaults for every parameter in the display menu are OK for your application.
General Information About Configuration Parameters 4.6 Parameter Identifiers Used by Multi-Comm Software Throughout Sections 5 through 14 a two-digit number (or number and letter combination) appears in parenthesis after the name of the parameter. This is the number used to identify the parameter in the Athena Plus protocol.
Series C Controller Configuration and Operation Manual 4-10 Athena Controls, Inc.
5. Input Parameters – Required 5.1 Introduction If you plan to use a thermocouple or RTD input and a unit of measure other than Fahrenheit (the default), the first step is changing the unit of measure to Celsius or Kelvin. Otherwise, the first step when configuring a controller is specifying the input type using the InP (input) menu, then specifying the bias (if any) to be applied to the input, scaling the input (linear types only), specifying the setpoint range, and setting an input filter value (if any).
Series C Controller Configuration and Operation Manual 5.3 Input Jumper Settings Must Match Input Type Depending on the type of input, you might also have to change jumper settings. In 1ZC, 16C, 18C, and 25C controllers, the input jumpers must be set according to the type of input jumper category.
Input Parameters The location of the 1ZC input jumpers is shown below. 1ZC Input Jumper Locations The jumper settings are summarized in the table below. Input Jumper Category JMP01 JMP02 out out Category 2 – high voltage >100 mV in out Category 3 – current (milliamp) in in Category 1 – thermocouple, RTD, and low voltage ≤ 100 mV) 900M050U00 Athena Controls, Inc.
Series C Controller Configuration and Operation Manual 5.4 Input Menu Parameter List The InP (input) menu is shown in the table below. Descriptions of the individual parameters are later in the subsection. Item 5-4 Parameter Name When Displayed tYPE Input Type always bIAS Input Bias always SCL.L Linear Input Scaling Low Limit SCL.H Linear Input Scaling High Limit only for linear input types (millivolt, voltage, or milliamp) SP.LL Setpoint Low Limit always SP.
Input Parameters The process of configuring the input parameters is diagramed below. 900M050U00 Athena Controls, Inc.
Series C Controller Configuration and Operation Manual 5.5 Specifying the Input Type 5.5.1 Parameter Used After changing the unit of measure for temperature inputs, the next step when configuring a controller is always specifying the input type using the InP (input) menu. The input type is set at the factory to match the calibration type specified when the controller was ordered. (See Note 1 on the next page.) However, the input type can be changed using the tYPE parameter described below.
Input Parameters Effect on Other Parameters: If you select an RTD or thermocouple input, then scaling limits used by linear input types do not apply. The Linear Input Scaling Low Limit (SCL.L) and Linear Input Scaling High Limit (SCL.H) parameters will not be displayed in the input menu. If you select rt.d (100 ohm compressed RTD with decimal support), the Decimal Position parameter will not be displayed in the display menu. A compressed RTD input always uses one decimal position.
Series C Controller Configuration and Operation Manual 5.5.2 Procedure for Viewing the Currently Selected Input Type To view the input type currently set for the controller: 1. Access the configuration menus by pressing the key until a string of letters is displayed on the top line (approximately three seconds). 2. If a menu name other than InP is displayed, press the on the top line. key until InP is displayed 3.
Input Parameters 5.6 Configuring Input Parameters for RTD and Thermocouple Input Types 5.6.1 Applying a Bias to the Temperature Input When using an RTD or thermocouple input, you can specify the bias (if any) to be applied to the input. Applying bias allows you to compensate for any difference between sensor reading and the point to be measured. The displayed process variable and setpoint will be offset by the value entered here.
Series C Controller Configuration and Operation Manual 5.6.2 Specifying the Setpoint Range When a Temperature Input is Used Configure the setpoint range, that is, the range of setpoint values the operator can enter using the 16C, 18C, and 25C front panel. This range will also apply to recipe setpoints, that is, to soak levels specified using the ramp/soak parameters. The Setpoint Low Limit and the Setpoint High Limit must not be set to the same value.
Input Parameters If you are using an RTD or thermocouple input type, you have finished configuration of input parameters. The remainder of this chapter does not apply to your application. Go to Section 6 – Display Parameters. 900M050U00 Athena Controls, Inc.
Series C Controller Configuration and Operation Manual 5.7 Configuring Input Parameters for Linear Inputs 5.7.1 Applying a Bias to the Linear Input When using a linear input, you can specify the bias (if any) to be applied to the input. Applying bias allows you to compensate for any difference between sensor reading and the point to be measured. The displayed process variable and setpoint will be offset by the value entered here.
Input Parameters 5.7.2 Scaling the Linear Input When a linear input is used, the controller will scale the input based on the range you specify. That means that you enter the PV to be represented by the input when the input signal is at its lowest level, and the PV to be represented by the input at its highest level. The controller divides that range into equal segments to interpret a particular input signal. For example, suppose you use a 4 to 20 mA input to represent a PV that ranges from 0 to 170 °F.
Series C Controller Configuration and Operation Manual 5.7.3 Specifying the Setpoint Range When a Linear Input Is Used The setpoint range, that is, the range of setpoint values the operator can enter using the 16C, 18C, and 25C front panel. This range will also apply to recipe setpoints, that is, to soak levels specified using the ramp/soak parameters. The Setpoint Low Limit and the Setpoint High Limit must not be set to the same value.
6. Display Parameters – Required 6.1 Introduction The dSPL (display) menu is shown in the table below. Descriptions of the individual parameters are later in the subsection. This menu is available only when the security access level is set to CnF9 (configuration) or FACt (factory).24 Item Parameter Name When Displayed dEC.P Decimal Position25 always d.
Series C Controller Configuration and Operation Manual Yes No Which display parameters apply to your application? If you chose an RTD or thermocouple input type, go to 6.2. If you chose a linear input type go to 6.3. 6-2 Athena Controls, Inc.
Display Parameters 6.2 Configuring Display Parameters for RTD and Thermocouple Input Types 6.2.1 Choosing the Decimal Position When a Temperature Input Is Used The decimal point location applies to all controller types, including the 1ZC model. Even though the 1ZC has no display, you must configure the decimal position parameter (or accept the default) because the controller uses this parameter value to determine how many decimal places to store for the PV and SV values.
Series C Controller Configuration and Operation Manual 6.2.3 Choosing the Unit of Measure When a Temperature Input Is Used The unit of measure applies to all controller types, including the 1ZC model. The unit of measure specified here is used by the controller for internal operations and external communication.
Display Parameters 6.3 Configuring Display Parameters for Linear Input Types 6.3.1 Choosing the Decimal Position When a Linear Input Is Used The decimal point location applies to all controller types, including the 1ZC model. Even though the 1ZC has no display, you must configure the decimal position parameter (or accept the default) because the controller uses this parameter value to determine how many decimal places to store for the PV and SV values.
Series C Controller Configuration and Operation Manual 6.3.3 Blanking the Display of the Setpoint When a Linear Input Is Used If you do not want the setpoint to be displayed all the time (while the controller is operating normally), then use the Setpoint Display Blanking parameter to specify the length of time the setpoint should be displayed before being hidden (“blanked”). The setpoint display will remain blank until any key is pressed.
7. Output Parameters – Required 7.1 Introduction The 1ZC, 16C, 18C, and 25C controllers are available with one or two standard outputs (relay, pulsed voltage, or analog, depending on the model ordered). The way that these standard outputs are used is determined by the way you configure the parameters in the OutP (output) menu (shown in the table below). An additional analog output can be ordered as an option. Use of this auxiliary output is specified using the option menu described in 14.7.
Series C Controller Configuration and Operation Manual The process of configuring the output parameters is shown below. Select Alarm Operation D1.A0 7-2 Athena Controls, Inc.
Output Parameters 7.2 Specifying the Output Type The first step in configuring use of the standard outputs is specifying the output type (function). As described in 1.5, the 1ZC, 16C, 18C, and 25C controllers can be used to implement PID or on/off control. Alternatively, model 16C and 1ZC controllers’ standard outputs can be used for alarm annunciation as described in 1.6. If the controller was ordered with two standard outputs, then two different output types can be chosen.
Series C Controller Configuration and Operation Manual 7.3 Choosing the Output Action for On/Off Control When the output type is set to on/off, only one other output parameter must be configured: output action. When an output is used for on/off control, it can be either direct or reverse acting. • When the on/off output action is configured for reverse action (heating applications), the controller will apply 100% output if the process temperature is below the setpoint and 0% if the PV is at the SV.
Output Parameters 7.4 Configuring Output Parameters for PID Control 7.4.1 Choosing the Output Action for PID Control When an output is used for PID control, it can be either direct or reverse acting. • When the PID output action is configured for reverse action (heating applications), the proportional band is initially applied below the setpoint. • When the PID output action is configured for direct action (cooling applications), the proportional band is initially applied above the setpoint.
Series C Controller Configuration and Operation Manual 7.4.2 Specifying the Cycle Time for PID Control When an output is used for PID control, you must specify a cycle time that is appropriate for your application and the output hardware (see below). The cycle time enables you to use a discrete output device, such as a solid state relay, to achieve PID control. For example, suppose the cycle time is set to 10 seconds and the control algorithm calculates that the output percentage should be 50%.
Output Parameters 7.4.3 Specify the PID Output Range If the controlled field device should never be fully off and/or fully on, you can limit the range of the output when PID is used. The range defined here affects both: • the control algorithm’s output when the controller is in normal (automatic) mode, and • the fixed output percentage the operator can enter when the controller is in manual mode.
Series C Controller Configuration and Operation Manual Parameter Name: Name as Displayed: Used By: When Displayed: Range: Default: Description: Effect on Other Parameters: 7-8 Output 1 High Limit (A4) and Output 2 High Limit (B5) O1.HL and O2.HL all controllers if output type is PID 0 to 100 percent 100 Used to specify the highest percentage used for the output in both manual and normal (automatic) modes. No effect on other configuration parameters.
Output Parameters 7.5 Configuring Output Parameters for Alarm Annunciation – 1ZC and 16C Only 7.5.1 Choosing the Alarm Action The first step in configuring an output to be used for alarm annunciation is to choose the alarm action. The choices are: • OFF (off) – The alarm output will not be used. • nor (normal) – The output will go to the alarm state when the process value triggers the alarm and go out of the alarm state when the alarm condition has been cleared.
Series C Controller Configuration and Operation Manual 7.5.2 Choosing the Alarm Operation The second step in configuring an output to be used for alarm annunciation is to choose the alarm operation. The choices are: • process alarm – Activated when the process variable reaches the alarm value (alarm setpoint parameter value), independent of the PV’s relationship to the process setpoint. A high process alarm activates at and above the alarm setpoint.
Output Parameters 7.5.3 Specifying the Alarm Delay – Optional If you specify an alarm delay, then when the controller detects an alarm condition, the alarm output will not be activated until the alarm delay time has passed. Use the alarm delay to reduce nuisance alarms for transient conditions that are corrected without any operator action. Parameter Name: Name as Displayed: Used By: When Displayed: Range: Default: Description: Output 1 Alarm Delay (98) and Output 2 Alarm Delay (A9) O1.dL and O2.
Series C Controller Configuration and Operation Manual 7.5.5 Specifying the Alarm Value (Setpoint) How the alarm setpoint value is used depends on the type of alarm.
8. Control Parameters – Required If Outputs Are Used for Control 8.1 Introduction The 1ZC, 16C, 18C, and 25C controllers all support both PID and on/off control. If the controller is equipped with two standard outputs, the outputs can be configured for two different types of control. For information about the types of applications that are suitable for each type of control, see 1.5. The parameters used to customize the control operation are in the CtrL (control) menu.
Series C Controller Configuration and Operation Manual The process of configuring the control parameters is shown below. Is Output 2 Type PID? See Note 2 Is Output 2 Type PID? See Note1 Which control parameters apply to your application? If you chose on/off for an output in Section 7, then go to 8.2. If you chose PID control for an output in Section 7, go to 8.3. 8-2 Athena Controls, Inc.
Control Parameters 8.2 Configuring Control Parameters for On/Off Control 8.2.1 Introduction On/off control has two states, fully off and fully on. To prevent rapid cycling, the controllers allow you to configure a deadband and a hysteresis value as described in 1.5.3. 8.2.2 Specifying the Deadband for On/Off Control Parameter Name: Deadband for Output 1 (20) and Deadband for Output 2 (37) Name as Displayed: db.1 and db.
Series C Controller Configuration and Operation Manual 8.2.3 Applying Hysteresis to On/Off Control Parameter Name: Name as Displayed: Used By: When Displayed: Range: Default: Description: Hysteresis for Output 1 (21) and Hysteresis for Output 2 (38) HYS.1 and HYS.2 all controllers if input type is on/off RTD and thermocouple input types: 0 to positive sensor span linear input types: limited by the scaling defined for the input using the input menu (See Note 1 below.
Control Parameters 8.3 Configuring Control Parameters for PID Control 8.3.1 Introduction When Proportional-Integral-Derivative (PID) control is used, the controller modulates output power by adjusting the output power percentage within a proportional band. Power is proportionally reduced as the process temperature gets closer to the setpoint temperature.
Series C Controller Configuration and Operation Manual 8.3.3 Specifying the Derivative (Rate) Action for Manual Tuning of PID Control Parameter Name: Name as Displayed: Used By: When Displayed: Range: Default: Description: Derivative (30) dEr all controllers if output 1 or output 2 type is PID 0.0 to 0.9, 1 to 2400 seconds (See Notes 1 and 2 below.) 0.0 Used to specify the time period used by the derivative component of the control algorithm when analyzing load changes.
Control Parameters 8.3.5 Integral Action (Automatic Reset) Calculated Automatically During Autotune for PID Control This parameter is not used in manual tuning. If you assign a non-zero value to the manual offset OFFS parameter, then this parameter Int will not be displayed. Parameter Name: Name as Displayed: Used By: When Displayed: Range: Default: Description: Integral Action (Automatic Reset) (32) Int all controllers if output 1 or output 2 type is PID 0.0 to 0.
Series C Controller Configuration and Operation Manual 8-8 Athena Controls, Inc.
9. Alarm Parameters – Optional 9.1 Introduction The 16C, 18C, and 25C controllers all have two alarm LEDs on the front panel. Each of these LEDs is associated with an alarm. Each alarm can be configured to be activated (light the LED) when a specific condition exists. Alarm configuration is done using the Alr (alarm) menu. This menu is available only when the security access level is set to CnF9 (configuration) or FACt (factory).
Series C Controller Configuration and Operation Manual The process of configuring the alarm parameters is shown below. 9-2 Athena Controls, Inc.
Alarm Parameters 9.2 Configuring Alarm Parameters 9.2.1 Choosing the Alarm Action The first step in configuring an alarm is to choose the alarm action. The choices are: • OFF (off) – The alarm will not be used. • nor (normal) – The LED will be lit (and the optional alarm output activated) when the process value triggers the alarm and be turned off when the alarm condition has been cleared.
Series C Controller Configuration and Operation Manual 9.2.2 Choosing the Alarm Operation Unless the output will be used to signal ramp/soak recipe event, the second step in configuring an alarm is to choose the alarm operation. The choices are: • process alarm – Activated when the process variable reaches the alarm value (alarm setpoint parameter value), independent of the PV’s relationship to the process setpoint. A high process alarm activates at and above the alarm setpoint.
Alarm Parameters 9.2.3 Specifying the Alarm Delay – Optional Unless the alarm will be used to signal ramp/soak recipe event, you can configure an alarm delay. If you specify an alarm delay, then when the controller detects an alarm condition, the alarm will not be activated until the alarm delay time has passed. Use the alarm delay to reduce nuisance alarms for transient conditions that are corrected without any operator action.
Series C Controller Configuration and Operation Manual 9.2.5 Specifying the Alarm Value (Setpoint) How the alarm setpoint value is used depends on the type of alarm.
10. Autotune Damping Parameter – Recommended 10.1 Introduction The 1ZC, 16C, 18C, and 25C controllers all support Autotune for PID control. The tunE (Autotune damping) menu contains a single parameter used to control how aggressively the controller performs its Autotuning operation.
Series C Controller Configuration and Operation Manual 10-2 Athena Controls, Inc.
11. Ramp/Soak Recipe Parameters – Optional 11.1 Introduction The 1ZC, 16C, 18C, and 25C can all be configured to execute ramp/soak recipes on demand. A recipe consists of up to eight segments. For each segment you can configure a unique ramp time, soak level (setpoint), and soak time. As the controller executes a segment, the controller gradually (over the period of the ramp time) changes the currently used setpoint up or down until the setpoint reaches the soak level.
Series C Controller Configuration and Operation Manual Item Parameter Name When Displayed r.Opt Recipe Option always (assuming the menu is displayed because an output is available for control) s.s.r.t Single-Setpoint Ramp Time if recipe option is single-setpoint ramp HLd.b Recipe Holdback always tEr.S Recipe Termination State always rcY.n Recipe Recycle Number if recipe option is eight-segment r/s recipe PF.
Ramp/Soak Recipe Parameters The process of configuring the ramp/soak parameters is shown below. 900M050U00 Athena Controls, Inc.
Series C Controller Configuration and Operation Manual 11.2 Specifying the Recipe Option Parameter Name: Name as Displayed: Used By: Recipe Option (40) r.Opt all controllers When Displayed: if at least one output type is on/off or PID Choices: dis disabled 8.r.S eight-segment ramp/soak recipe S.SP.r single-setpoint ramp Default: Description: Effect on Other Parameters: disabled Used to choose the ramp/soak function (if any) to be used.
Ramp/Soak Recipe Parameters 11.3 Configuring Single-Setpoint Ramp Parameters 11.3.1 Specifying the Ramp Time for a Single-Setpoint Ramp Parameter Name: Name as Displayed: Used By: When Displayed: Range: Default: Description: Single-Setpoint Ramp Time (41) S.S.r.t all controllers if the recipe option is single-setpoint ramp 1 to 9999 minutes 1 Used to specify the time period over which the setpoint will be ramped at start up from the starting process value to the configured setpoint. 11.3.
Series C Controller Configuration and Operation Manual 11.3.3 Specifying What Happens at the Conclusion of the Single-Setpoint Ramp Time Parameter Name: Name as Displayed: Used By: When Displayed: Choices: Termination State (84) tEr.
Ramp/Soak Recipe Parameters 11.4 Configuring Multi-Step Ramp/Soak Parameters 11.4.1 Introduction When the eight-segment ramp/soak recipe option has been selected, several parameters can be configured that apply to the entire recipe.
Series C Controller Configuration and Operation Manual 60 120 180 240 300 360 420 480 Time in Minutes 11-8 Athena Controls, Inc.
Ramp/Soak Recipe Parameters 11.4.2 Parameters That Apply to the Entire Multi-Step Ramp/Soak Recipe 11.4.2.1 Specifying the Optional Recipe Holdback Parameter Name: Name as Displayed: Used By: When Displayed: Range: Recipe Holdback (83) HLd.b all controllers always thermocouple and RTD input types: off 0.1 to 100 °F 0.1 to 55.6 °C or °K linear input types: off 1 to 100 (See Note 1 below.
Series C Controller Configuration and Operation Manual 11.4.2.3 Specifying the Number of Additional Times the Multi-Step Recipe Will Repeat Once Started Parameter Name: Name as Displayed: Used By: When Displayed: Range: Recipe Recycle Number (82) rcY.n all controllers if the recipe option is eight-segment r/s recipe 0 to 99 cont Default: Description: 11.4.2.4 0 Used to specify the number of additional times the recipe will be executed once started.
Ramp/Soak Recipe Parameters 11.4.3 Configuring Individual Recipe Segments 11.4.3.1 Specifying the Ramp Time for Each Step of a Multi-Step Recipe Parameter Name: Name as Displayed: Used By: When Displayed: Range: Default: Description: Effect on Other Parameters: 11.4.3.2 Ramp Time 1, Ramp Time 2, etc. through Ramp Time 8 (42 through 49) rt1, rt2 through rt8 all controllers if the recipe option is eight-segment r/s recipe 0 to 9999 minutes 0 Used to specify the length of the ramp time for each segment.
Series C Controller Configuration and Operation Manual 11.4.3.3 Specifying the Setpoint for Each Soak in a Multi-Step Recipe Parameter Name: Name as Displayed: Used By: When Displayed: Range: Soak Level 1, Soak Level 2 etc. through Soak Level 8 (58 though 65) SL1, SL2 through SL8 all controllers if the recipe option is eight-segment r/s recipe SPL.L to SPH.L (setpoint low limit to setpoint high limit from input menu) (See Note 1 below.
Ramp/Soak Recipe Parameters 11.4.3.5 Linking a Soak Period to an Alarm Parameter Name: Name as Displayed: Used By: When Displayed: Choices: Default: Description: 900M050U00 Soak Event 1, Soak Event 2 etc. through Soak Event 8 (74 through 81) SE1, SE2 through SE8 all controllers if the recipe option is eight-segment r/s recipe, and at least one alarm is reserved for recipe use using the Alr (alarm) menu dis disabled A1.On alarm 1 on if alarm 1 is reserved for recipe use A1.
Series C Controller Configuration and Operation Manual 11-14 Athena Controls, Inc.
12. Supervisor Parameters – Recommended 12.1 Introduction You can use the SUPr (supervisor) menu to specify the output percentages to be used if the controller detects a problem with the process input (failsafe values), and the length of the time period during which the input should change in response to output action if the input is working normally (loop break time). You can also use this menu to see the highest and lowest process value received by the controller since the controller was powered up.
Series C Controller Configuration and Operation Manual 12.2 Specifying What Happens When an Input Is Bad The failsafe output percentages are used when the controller detects a problem with the input: open sensor, reversed sensor, or loop break time exceeded. You cannot rely on the controller using these output percentages if the controller’s internal circuitry fails.
Supervisor Parameters 12.4 Viewing the Highest and Lowest Process Value Received Since Last Reset The highest and lowest process values received since the last reset are read-only values. To reset the values, press the or key. Parameter Name: Name as Displayed: Used By: When Displayed: Range: Default: Description: Highest Reading (E4) and Lowest Reading (E5) HI.rd and LO.
Series C Controller Configuration and Operation Manual 12-4 Athena Controls, Inc.
13. Calibration Function – Not Required for Configuration 13.1 Introduction The CaL (calibration) menu does not contain configuration parameters. Instead it is used to display the values for which a simulated input should be applied to the controller input terminals during calibration of the zero offset (CALo) and the span adjustment (CAHi). It is also used to initiate the calibration operation after the controller has been prepared as described in Section 18.
Series C Controller Configuration and Operation Manual 13.3 Menu Items Parameter Name: Name as Displayed: Used By: When Displayed: Description: Calibration Low (see Note 1 below) CALo all always Displays the temperature input value that should be simulated during low calibration. Beware! Pressing the or key while this is on display will clear the controller’s existing zero offset and initiate the low calibration, even if you have not prepared the controller as described in Section 18.
14. Option Parameters – Required if Using Options 14.1 Introduction Every 1ZC controller supports RS-485 serial communications. The 16C, 18C, and 25C models can support a variety of options, including serial communications. The available options are described briefly below. Use of most of these options requires that you configure a few parameters. These parameters are arranged in menus, one for each option.
Series C Controller Configuration and Operation Manual • A contact/digital input can be used to trigger use of a second setpoint (see 1.6.4), or to toggle the controller’s mode from normal to standby, or to toggle between running and holding a ramp/soak recipe. The function of this input is selected using the C-dI (contact/digital input) menu (see 14.8). For the 16C the contact/digital input card is available with one dedicated alarm relay.
Option Parameters 14.3 Summary of Option Parameters Item Parameter Name When Displayed Optn (option) menu; see 14.4 Card Installed Option Card always; the choice made here determines the other option menus that are displayed. The choices available in the option menu depend on the controller model. none d.In dI.AL ALr A.Out rAS Sc.
Series C Controller Configuration and Operation Manual Item Parameter Name When Displayed a.out (auxiliary output) menu; see 14.7 Out.U Auxiliary Output Variable SCL.L Auxiliary Output Scale Low SCL.H Auxiliary Output Scale High This menu is displayed if you chose Aout as the card type. If the menu is displayed, then all the parameters shown here are included. C-dl (contact/digital input) menu; see 14.8 Func Contact/Digital Input Function This menu is displayed if you chose dIAL or Sc.
Option Parameters 14.4 Specifying the Option Card Parameter Name: Name as Displayed: Used By: When Displayed: Choices: Default: Description: Effect on Other Parameters: Installed Option Card (E8) Card all except 1ZC always none dI.AL ALr A.Out rAS Sc.dI SErL none contact/digital input with alarm alarm auxiliary output remote analog setpoint serial communications with digital input serial communications 1ZC, 18C, 25C: none 16C: serial communications Used to choose the option menus to be displayed.
Series C Controller Configuration and Operation Manual 14.5 Configuring Serial Communications Parameters for MODBUS 14.5.1 Introduction The items that appear on the SerL (serial) menu in controllers that support MODBUS are different from the SerL menu items displayed if the controller supports Athena Plus Protocol. The MODBUS communication parameters presented briefly below are described in more detail in Using the MODBUS Protocol with Athena Series C (1ZC, 16C, 18C, and 25C) Controllers.
Option Parameters 14.5.4 Selecting the Parity When MODBUS is Used Parameter Name: Name as Displayed: Used By: When Displayed: Choices: Parity (see Note 1 below) Par all if the card type is serial and the communication firmware supports the MODBUS protocol none Odd euen none odd even (see Note 2 below) Default: Description: none Used to select the type of parity to be used, if any.
Series C Controller Configuration and Operation Manual 14.6 Configuring Serial Communication Parameters for Athena Plus Protocol 14.6.1 Introduction The items that appear on the SerL (serial) menu in controllers that support Athena Plus protocol are different from the SerL menu items displayed if the controller supports the MODBUS protocol. The Multi-Comm User’s Guide contains more information about configuring a controller to communicate with the Multi-Comm host over an RS-232 or RS-485 network.
Option Parameters 14.6.4 Selecting the Number of Data Bits and Stop Bits, and the Parity Applicable to Athena Plus Communications Parameter Name: Name as Displayed: Used By: When Displayed: Choices: Data Format (D7) dat.F all if the card type is serial and the communication firmware supports the Athena Plus protocol 8.n.1 7.E.2 7.o.2 7.n.2 7.E.1 7.o.1 8.n.2 8.E.1 8.o.
Series C Controller Configuration and Operation Manual 14.7 Configuring Auxiliary Output Parameters 14.7.1 Introduction If the card type is A.Out, then the A.Out menu is displayed. 14.7.2 Selecting the Value to be Transmitted Parameter Name: Name as Displayed: Used By: When Displayed: Choices: Default: Description: Auxiliary Output Variable (G1) Out.U all except 1ZC if the card type is auxiliary analog output St.
Option Parameters 14.8 Configuring the Contact/Digital Input Parameter 14.8.1 Introduction If the card type is SC.dI or di.aL, then the C-dL (contact/digital input) menu is displayed. It contains a single parameter, which is described below. 14.8.
Series C Controller Configuration and Operation Manual 14.9 Configuring the Remote Analog Setpoint Parameters 14.9.1 Introduction If the card type is rAS, then the rAS (remote analog setpoint) menu is displayed. It contains two parameters, which are described below. 14.9.2 Scaling the Input for the Remote Analog Setpoint Parameter Name: Name as Displayed: Used By: When Displayed: Range: Default: Description: Remote Analog Setpoint Scale Low (G5) and Remote Analog Setpoint Scale High (G6) SCL.L and SCL.
15. Numbers Used to Identify Parameters in Multi-Comm Messages and Athena Plus Protocol Skip this section if you are configuring a 16C, 18C, or 25C controller using its front panel (or using a MODBUS host). The information in this section does not apply to your situation. The table below is provided for users of Multi-Comm software and other custom applications that take advantage of the Athena Plus communication protocol.
Series C Controller Configuration and Operation Manual Code 15-2 Parameter Name Used By Read/Write Where Described 11 Second Setpoint – RAM and EEPROM all except 1ZC R/W 1.6 12 Second Setpoint – RAM only all except 1ZC R/W 1.6 13 Remote Analog Setpoint all except 1ZC R 1.6 14 Recipe Setpoint all R 1.6. 16 Output 1 Percentage all R See Note 1. 17 Output 2 Percentage all R See Note 1. 18 Output 1 Manual Mode Fixed Output Percentage all R/W 2.4.
Identifying Numbers in Multi-Comm Messages and Athena Plus Protocol Code 900M050U00 Parameter Name Used By Read/Write Where Described 53 Ramp Event 4 all except 1ZC R/W 11.4.3.2 54 Ramp Event 5 all except 1ZC R/W 11.4.3.2 55 Ramp Event 6 all except 1ZC R/W 11.4.3.2 56 Ramp Event 7 all except 1ZC R/W 11.4.3.2 57 Ramp Event 8 all except 1ZC R/W 11.4.3.2 58 Soak Level 1 all R/W 11.4.3.3 59 Soak Level 2 all R/W 11.4.3.3 60 Soak Level 3 all R/W 11.4.3.
Series C Controller Configuration and Operation Manual Code 15-4 Parameter Name Used By Read/Write Where Described all except 1ZC R/W 11.4.3.5 81 Soak Event 8 82 Recipe Recycle Number all R/W 11.4.2.3 83 Recipe Holdback Band all R/W 11.3.2 84 Recipe Termination State all R/W 11.4.2.2 85 Recipe Resume After Power Failure all R/W 11.4.2.4 86 Input Bias all R/W 5.6.1 and 5.7.1 87 Input Low Scale all R/W 5.7.2 88 Input High Scale all R/W 5.7.
Identifying Numbers in Multi-Comm Messages and Athena Plus Protocol Code 900M050U00 Parameter Name Used By Read/Write Where Described B3 Output 2 Cycle Time all R/W 7.4.2 B4 Output 2 Low Limit all R/W 7.4.3 B5 Output 2 High Limit all R/W 7.4.3 B6 RTD and T/C Decimal Position all R/W 6.2.1 B7 Linear Decimal Position all R/W 6.3.1 B8 Display Filter all except 1ZC R/W 6.2.2 and 6.3.2 B9 Display Units all R/W 6.2.3 C1 Display Blanking all except 1ZC R/W 6.2.4 and 6.
Series C Controller Configuration and Operation Manual Code 15-6 Parameter Name Used By Read/Write Where Described E1 Output 1 Failsafe % all R/W 12.2 E2 Output 2 Failsafe % all R/W 12.2 E3 Loop Break Time all R/W 12.3 E4 Highest Reading all R/W 12.4 E5 Lowest Reading all R/W 12.
Identifying Numbers in Multi-Comm Messages and Athena Plus Protocol Code Parameter Name Used By Read/Write Where Described I0 RTD with Decimal Support Span Cal all R/W See Note 2 I1 0 to 5 V, 0 to 10 V Zero Offset all R/W See Note 2 I2 0 to 5 V, 0 to 10 V Span Adjustment all R/W See Note 2 I3 10 to 50 mV, 0 to 100 mV Zero Offset all R/W See Note 2 I4 10 to 50 mV, 0 to 100 mV Span Adjustment all R/W See Note 2 I5 Watchdog Disable 1ZC R/W See Note 3 I6 Controller Ambient T
Series C Controller Configuration and Operation Manual 15-8 Athena Controls, Inc.
16. Tuning the Controller for PID Control 16.1 Introduction When Proportional-Integral-Derivative (PID) control is used, the controller modulates output power by adjusting the output power percentage within a proportional band. Power is proportionally reduced as the process temperature gets closer to the setpoint temperature.
Series C Controller Configuration and Operation Manual 16.2 Autotuning 16.2.1 Introduction The procedure below is used to start Autotune using the front panel of a 16C, 18C, or 25C controller. You can also use a Multi-Comm host or a MODBUS master to change the mode, view and change parameter values, and to start Autotune for the 1ZC, 16C, 18C, and 25C models. The Autotune operation overwrites any existing proportional band, integral, and derivative parameter values that were previously configured.
Tuning the Controller for PID Control 8. When the controller has completed autotuning successfully, the flashing tune will disappear. The display will revert to the normal mode operating display, with the process value on the top line and the setpoint on the lower line. The controller will save the tuning parameter values in the proportional band, rate, and auto reset parameters. (The new tuning values can be viewed in the CtrL menu.
Series C Controller Configuration and Operation Manual 16.3 Manual Tuning (Zeigler-Nichols PID Method) 16.3.1 Introduction This tuning method may be used for non-temperature control processes or if the spread between initial process temperature and process operating temperature is small. This manual tuning process requires that the PV be tracked over time. If the controller is equipped with an auxiliary analog output card, connect a chart recorder to its terminals, and use the A.
Tuning the Controller for PID Control 6. While monitoring the recording device or plotting the displayed PV against time manually, decrease the proportional band value by repeatedly halving the value until a small, sustained temperature oscillation is observed. Measure the period in seconds of one cycle of oscillation (“T” on the diagram below). T 7. Divide the period of oscillation (T) by 8. The resulting number (quotient) is the correct der (derivative) time in seconds. 8. Divide T by 2.
Series C Controller Configuration and Operation Manual 16-6 Athena Controls, Inc.
17. Changing the Security Access Level 17.1 Introduction The 16C, 18C, and 25C controllers can be configured to limit the functions and configuration menus that can be accessed using the keypad. For example, the access level can be set to allow operators to change only the setpoint or the manual mode output percentage. A controller can be set to any of the access levels in the table below. The sequence of levels in the table is from most restrictive to least restrictive.
Series C Controller Configuration and Operation Manual Displayed Abbreviation Access Level CnF9 configuration Description All the “user” functions, and access to all menus except calibration. When the access level is “configuration”, the keypad can be used to perform all controller functions and access all menus, except the calibration menu. FACt factory Access to everything.
Changing the Security Access Level 17.2 Procedures 17.2.1 To View the Access Level To view the access level when the PV and SV are displayed: 1. Press and hold the key for approximately ten seconds. (After the first three seconds a menu name will be displayed on the top line. Ignore it and continue to press the key.) The display will show the access level label AcLu and the access level now in effect. For example, if the controller is set to “user” level, the display will show: AcLu USEr 2.
Series C Controller Configuration and Operation Manual 17.3 Disabling the Keypad To disable the keypad entirely, remove the JMP03 jumper from the processor board. The processor board is the board on the left when facing the controller. Refer to the illustration below for the location of JMP03. (This illustration shows the bezel and circuit board assembly as viewed from below.) JUMPER AS SHOWN ENABLES KEYPAD ACCESS. TO DISABLE KEYPAD ACCESS, REMOVE JUMPER. 17-4 Athena Controls, Inc.
18. Calibrating the Controller 18.1 Introduction You do not have to calibrate every new controller. When a controller was ordered, you specified an input type for which the unit was calibrated at the factory. This is not the specific type chosen with the input menu tYPE (type) parameter, such as J thermocouple, or 0 to 20 mA linear.
Series C Controller Configuration and Operation Manual 18.2 Determining the Simulated Input to be Used During Low and High Calibration 18.2.1 Introduction When calibrating the controller, you will remove the output wiring. You will remove the input wiring and substitute an appropriate simulated input to the controller’s input terminals.
Calibrating the Controller 18.2.3 Simulating Thermocouple Input for Calibration When calibrating the controller for use with a thermocouple input, you will remove the output wiring. You will remove the input wiring and substitute a simultated input provided by a thermocouple simulator. Before calibrating the controller, you must determine the correct temperature input values to simulate during calibration. Two values are used, one for low calibration and one for high calibration.
Series C Controller Configuration and Operation Manual 18.3 Preparing the Controller To prepare the controller for calibration: 1. Make sure the access level in a 16C, 18C, or 25C is set to FACt (factory). Instructions for viewing and changing the access level controller are in Section 17. 2. Go to the InP (input menu) and select the new input type as described in 5.5. (For 1ZC controllers, refer to the Multi-Comm User’s Guide or Using MODBUS with Series C (1ZC, 16C, 18C, and 25C) Controllers.
Calibrating the Controller 18.4 Initiating the Calibration To calibrate the controller after it has been prepared as described in 18.3 (including the fifteen minute warm-up period in standby mode): 1. For a 16C, 18C, or 25C controller, go to the CAL (calibration) menu and display CALo (calibration low). It will alternate with the process value for which you must apply a simulated input (see 18.2). 2. To initiate low calibration in a 16C, 18C, or 25C controller, when CALo is on display, press the or key.
Series C Controller Configuration and Operation Manual 18.5 Returning the Controller to Service To return the controller to service: 1. Remove power from the controller. 2. Remove the precision resistor or calibrator from the inputs. 3. Replace the input and output wiring. 4. Power up the controller. 18-6 Athena Controls, Inc.
19. Error Messages and Codes 19.1 Introduction As described in Section 2, usually the controller displays the process variable on the top line and the setpoint on the lower line of the display. When the controller is in a mode other than normal (automatic), the mode alternates with the PV. However, when the controller detects a problem with the input signal or with its own operation, messages and codes are displayed to alert you to a condition that requires your immediate attention. 19.
Series C Controller Configuration and Operation Manual 19.3 Problem with Controller 19.3.1 Introduction If the controller detects a problem with its own operation, it displays Err on the top line instead of the process value and displays a numerical code on the lower line instead of the setpoint. For example, if the controller detects a checksum error, the display will show: Err 0100 19.3.
Error Codes Display 3865 Error Condition power fail resume feature cannot be used The EEPROM is worn out; no storage space is available for storage of recipe execution information. Therefore, this message is displayed when power is restored after a power failure that occurred while a recipe was being executed under the direction of the controller. When this message is displayed, execution of the recipe cannot be resumed automatically.
Series C Controller Configuration and Operation Manual 19-4 Athena Controls, Inc.
20. Frequently Asked Questions 20.1 Introduction You can reach our technical support team by phoning 1-800-782-6776 (from the United States) or 610-828-2490 (from anywhere in the world). Before you call, please look at this section to see if your question is covered here.
Series C Controller Configuration and Operation Manual 20.3 Why doesn’t the PV displayed match the value on a thermometer in the process? Unless the thermometer and the sensor providing input to the controller are very close to one another, their readings will not match in some applications, because of temperature variations within the process.
Frequently Asked Questions 20.6 Why isn’t the setpoint displayed all the time? The controller’s dSPL (display) menu contains a bLAn (setpoint blanking) parameter that can be used to specify the number of seconds the setpoint is displayed. Once the configured time period has elapsed the setpoint display will go blank and remain blank until any key is pressed. Pressing any key will cause the controller to display the setpoint again.
Series C Controller Configuration and Operation Manual 20-4 Athena Controls, Inc.
21. Index A C access levels described, 1-7, 17-1 menus, 2-5 active setpoint, 1-12 address for controller, 14-6, 14-8 alarm action, 1-13, 7-9, 9-3 alarm delay, 7-11, 9-5 alarm menu, 4-6, 9-1 alarm operation, 1-13, 7-10, 9-4 alarm option cards, 1-14 alarm outputs configuration, 7-3, 7-9 described, 1-14 alarm setpoint, 7-12, 9-6 alarm value, 7-12, 9-6 alarms configuration, 9-1, 9-3, 14-1 inhibiting, 7-11, 9-5 methods of annunciation, 1-3, 1-13, 9-1 types supported, 1-13 ALr menu.
Series C Controller Configuration and Operation Manual D I damping parameter, 10-1 data format, 14-7, 14-9 deadband for on/off control configuration, 8-3 example, 1-10 decimal position, 6-3, 6-5 default values, 4-3 accepting, 4-8 message when loaded automatically, 19-2 restoring, 12-3 derivative action, 1-8, 8-5, 8-6, 16-1, 16-3, 16-4 deviation alarms, 1-13, 7-10, 7-12, 9-4, 9-6 digital input function, 14-2, 14-4, 14-5, 14-11 DIN rails, 1-2 direct output action, 7-4, 7-5 display description, 1-2 startup,
Index M manual mode, 1-2, 2-2, 2-11 permission to change outputs, 1-7, 17-1 selection display, 1-5 manual reset, 1-8, 8-5, 8-6, 16-1, 16-4, 16-5 manual tuning procedure, 16-4 menu access key, 1-3, 2-8 menu system, 1-6 accessing, 2-16 display sequence, 2-4, 4-5 permission to access, 1-7, 2-5, 17-1 milliamp inputs, 5-1, 5-6, 5-12, 6-5, 13-1, 18-1 millivolt inputs, 5-1, 5-6, 5-12, 6-5, 13-1, 18-1 Modbus protocol Autotuning with, 16-2 calibration with, 18-4 configuring communication parameters, 1-4, 14-3, 14-6
Series C Controller Configuration and Operation Manual range PID output, 7-7 setpoint, 5-14 rAS menu.
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