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Athena 18C Series, Operation Manual

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Athena 18C Series Operation Manual Download Page 9

9

RS-232 

COMMUNICATIONS

OPTION #A: RS-232 (ONE-TO-ONE) COMMUNICATIONS

Option Description:  

Provides a one-to-one connection between the controller and an RS-232 port. 

Computers, PLCs, or dumb terminals may be used to set and access controller data.

Figure 14. Wiring for RS-232 Communications

RS-485 

COMMUNICATIONS

OPTION #B & C: RS-485 (ONE-TO-MANY) COMMUNICATIONS 

 

 

Option Description:  

Provides one-to-many communications.

Terminate the controller furthest from the computer by connecting a 120-ohm, 1/4-watt resistor between ter-

minals 23 and 24.

Figure 15. Wiring for RS-485 Communications

Summary of Contents for 18C Series

Page 1: ...SERIES 18C 19C AND 25C TEMPERATURE PROCESS CONTROLLER OPERATION MANUAL...

Page 2: ...thermal shock On Off Output with Adjustable Hysteresis and Deadband to maintain tight process control Field Configurable Process or Deviation Alarms Bumpless Auto Manual Transfer NEMA 4X Front Panel...

Page 3: ...rol Menus 25 On Off Output and Control Menus 26 Alarm Menu 28 Ramp and Soak Menu 30 Supervisor Menu 31 Calibration Menu 3 2 Options Menu 3 3 Communications Menu 34 Contact Digital Input Menu 35 Auxili...

Page 4: ...nspect it carefully for damage Never attempt to install and use a damaged unit 3 Verify that the ordering code number indicated on the side of the controller matches what was ordered Figure 1 Recommen...

Page 5: ...ounting Insert the controller into the panel cutout from the front of the panel Place the mounting catches into the appropriate mounting slots at the top and bottom of the case housing and tighten the...

Page 6: ...suppressor directly from Athena part number 235Z005U01 Figure 4 Contact Identification Thermocouple circuit resistance should not exceed 100 ohms for rated accuracy errors will occur at higher resist...

Page 7: ...ower line contact 9 or 10 with a 2AG 0 5 amp rated fuse It is recommended that only instrument power is fused not power to the load Figure 8 Power Wiring Connection DUALALARM OUTPUTS OPTION T DUAL ALA...

Page 8: ...relay contact is closed when either alarm is active The relay life is greater than 100 000 operations at 5 operations per second switching full load Connect load and supply voltage per the following t...

Page 9: ...rminals may be used to set and access controller data Figure 14 Wiring for RS 232 Communications RS 485 COMMUNICATIONS OPTION B C RS 485 ONE TO MANY COMMUNICATIONS Option Description Provides one to m...

Page 10: ...esistance for all remote indicators must be less than 400 ohms For voltage options the remote indicators are connected in parallel The sum of the currents for all remote indicators must be less than 1...

Page 11: ...the input resistance is 255 ohms For voltage input options the input resistance is greater than 10K ohms Note Switch input option SE is only active when switch is closed The digital input option menu...

Page 12: ...T 15 Y 15 T outputs directly driving non inductive loads small heaters can have cycle times as low as 0 2 seconds Output Type Description B 5 A 120 240 Vac relay normally open used for switching resis...

Page 13: ...place the controller in Standby follow this procedure 1 Press and hold Mode Enter key until a menu label appears in upper display approximately three seconds 2 Press Raise or Lower key until appears i...

Page 14: ...input the range and units of the input 0 to 20 mA 0 to 5 V 1 to 5 V etc The type of input speci ed a ects how the controller processes the input signal and calculates the output needed to achieve the...

Page 15: ...these display parameters the controller will use the defaults 6 Choose how the outputs will be used and con gure the parameters that apply to the output function 7 For on o control customize the outpu...

Page 16: ...he Mode Enter key after making your selection The Series C s operating modes are Manual Standby Normal Autotune Ramp Soak Recipe Run and Hold To select a different operating mode press the Mode Enter...

Page 17: ...nd reverts to the Process Value display Each menu contains a logical group of parameters related to one another Furthermore the sequence of the menus has been carefully chosen to put the most importan...

Page 18: ...sage control methods and alarms Available at the security level Control Used to select parameters associated with the control methods Available at the security level Alarm Used to select alarm paramet...

Page 19: ...mV 0 100 mV 10 50 mV 0 1 V 0 5 V 0 10 V 1 5 V Input Type JMP 1 JMP 2 Thermocouple Out Out RTD Out Out Voltage 100 mV Out Out Voltage 100 mV In Out Current Process In In Note When you ordered your cont...

Page 20: ...ct control This parameter is mainly used to slow down the flickering of the display when the decimal position chosen is greater than zero IF A TEMPERATURE INPUT TYPE HAS BEEN SELECTED THE FOLLOWING OP...

Page 21: ...wer limit of the setpoint i e lowest value of the span of the sensor Upper Setpoint Limit Use the or to set the value of the upper limit of the setpoint i e the highest value of the span of the sensor...

Page 22: ...e Use the or to select Celsius scale Use the or to select the Kelvin scale Blanking Use the or to set time between 0 1 and 9999 seconds before the setpoint display turns off How Do I Get Here 1 Press...

Page 23: ...trol Menu will also change depending on the Output Type selected If you ordered two outputs you can select two different Output Types After setting your Output Type refer to the corresponding sections...

Page 24: ...n or factory If both outputs are configured for use with alarms or turned off using the output 1 type and output 2 type parameters then the control menu will not be displayed Display Parameter Availab...

Page 25: ...e to Use the or to select the high limit of the output between 1 and 100 Manual Reset Reverse acting heating Note the Integral Action Auto Reset parameter only appears if is selected in the Manual Res...

Page 26: ...1 and the span of sensor Deadband 2 Use the or to select the value of deadband of output 1 which will range between the negative span of sensor to positive span of sensor Hysteresis Output 2 Use the o...

Page 27: ...ified using the alarm value A low deviation alarm activates when the PV is below the process setpoint by the amount specified using the alarm value For example if you want an alarm to alert the operat...

Page 28: ...on inverse normal alarms Output 2 Alarm Action to select latching alarm to select an event to select normal alarm Output 2 Alarm Operation to select Process Low to select Process high to select invers...

Page 29: ...alarm is often used with this feature to ensure the process closely follows the rate ramp When the setpoint reaches the top of the ramp a soak period begins where the setpoint is maintained at this v...

Page 30: ...anel via the Mode Menu or with the logic input option initiate and held resumed only The recipe cannot be edited while running Holdback Band Specifies the maximum number of degrees above or below setp...

Page 31: ...oak Times 1 8 Use the or to select the soak time between 1 and 9999 minutes Soak Events 1 8 Alarm 1 On Alarm 1 O Alarm 2 On Alarm 2 O Disabled Note For Ramp Events and Soak Events to be employed Alarm...

Page 32: ...values received since the last reset These readings are read only values To reset the values to allow new highest and lowest process values press the or key Lowest Reading Load Default Parameters Thi...

Page 33: ...ation operation is triggered by pressing the up arrow key Please note that this menu can only be seen used when the controller has been set to the highest security setting Factory We strongly recommen...

Page 34: ...he second setpoint can be enabled only by an external switch or signal Parameters are set in the menu AUXILLIARY OUTPUT this option allows the Setpoint Variable or Process Variable to be transmitted t...

Page 35: ...te ground terminals refer to wiring diagram on next page RS 485 The RS485 multipoint capability allows up to 32 controllers to be connected together in a half du plex network or up to 100 controllers...

Page 36: ...in the above menu a once selected press the button to return to the standard operating mode b to select the second setpoint activate the remote switch and the F1 indicator LED will illuminate indicat...

Page 37: ...xiliary Output Menu Multiple remote indicators may be driven by the controller However current and voltage outputs cannot be used simultaneously For current mA options the remote indicators are connec...

Page 38: ...ith switch The output signal is scalable in the Auxiliary Output Menu Multiple remote indicators may be driven by the controller However current and voltage outputs cannot be used simultaneously For c...

Page 39: ...n off time of 10 seconds and represents a 50 percent power output The controller will cycle on and off while within the proportional band 2 PROPORTIONAL BAND A temperature band expressed in of fullsca...

Page 40: ...values of the proportional derivative and integral action settings that have been determined In order for the controller to autotune properly the setpoint value must be at least 1 of span above or be...

Page 41: ...seconds until menus appear b Press until appears c Press until appears The SV display will alternate between the parameter and its value d Press or to select 4 Under the Control menu make sure that t...

Page 42: ...erating mode to Fixed Output Percentage To do this press the mode key for 4 seconds until the control mode is displayed Use the raise or lower keys to select FOP as the operating mode once selected pr...

Page 43: ...to perform a soft reset and reinitialize the controller RAM Error Defaults Loaded EEPROM Write Failure Power Fail Resume Feature Disabled No further resume actions available plus a 2 digit code Unexpe...

Page 44: ...perator Initiated from Front Panel Manual Control Operator Initiated from Front Panel MECHANICAL CHARACTERISTICS Display Dual 4 digit 0 36 9 2 mm LED display Process Value Orange Setpoint Value Menu G...

Page 45: ...tocol Option id E REMOTE ANALOG SETPOINT 0 to 5V dc with switch Option id SA 1 to 5 Vdc with switch Option id SB 0 to 20 mA with switch Option id SC 4 to 20 mA with switch Option id SD Switch only Opt...

Page 46: ...Calibration Low menu item in the Calibration Menu You must have Security Level set to Factory to access this menu 4 Dial Calibrator to prompted value on the controller s display See chart below for RT...

Page 47: ...urns off Pressing any button causes the setpoint value display to reappear for the selected time interval CYCLE TIME The period of time in which the controller s output completes an on off cycle Propo...

Page 48: ...rcentage OUTPUT HIGH LIMIT Prohibits the controller s output from going above the specified percentage PID OUTPUT TYPE Proportional Integral Derivative The controller modulates output power by adjusti...

Page 49: ...e bias value Enter the setpoint of 150 The setpoint 150 will be displayed However the controller will use a setpoint of 200 The process value displayed will also be o set so that when the temperature...

Page 50: ...pecify the time period over which the controller will average the input values before using the value in the calculation of control output values Q Why is the setpoint changing I haven t touched the c...

Page 51: ...autotuning and when your controller is controlling well we recommend you write the displayed value for each of the menu parameters listed below If you do not use a listed parameter indicate N A Using...

Page 52: ...THE TRANSACTIONS OF THIS AGREEMENT MAY BE BROUGHT BY PURCHASER MORE THAN ONE YEAR AFTER THE CAUSE OF ACTION HAS ACCRUED SELLER S MAXIMUM LIABILITY SHALL NOT EXCEED AND BUYER S REMEDY IS LIMITED TO EI...

Page 53: ...53...

Page 54: ...ntrols Inc Plymouth Meeting PA 1 610 828 2490 AthenaControls com sales athenacontrols com DATE DESCRIPTION REVISION TITLE DWG DATE SCALE DRAWN CHECKED Model 18C 19C 25C Operation Manual 900M505U01 1 2...

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