Athena 6075 series Instruction Manual

Temperature controllers with auto-tuning pid and plug-in computer interface

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SERIES
6075
TEMPERATURE CONTROLLERS
WITH AUTO-TUNING PID AND
PLUG-IN COMPUTER INTERFACE

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Summary of Contents for Athena 6075 series

  • Page 1 SERIES 6075 TEMPERATURE CONTROLLERS WITH AUTO-TUNING PID AND PLUG-IN COMPUTER INTERFACE...
  • Page 2 Warranty Limitations Other than those expressly stated herein,THERE ARE NO OTHER WARRANTIES OF ANY KIND, EXPRESS OR lMPLlED, AND SPECIFI- CALLY EXCLUDED BUT NOT BY WAY OF LlMlTATlON, ARE THE IMPLIED WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE AND MERCHANTABILITY. IT IS UNDERSTOOD AND AGREED THE SELLER’S LIABILITY WHETHER IN CONTRACT, IN TORT, UNDER ANY WARRANTY, IN NEGLIGENCE OR OTHERWISE SHALL NOT EXCEED THE RETURN...
  • Page 3: Table Of Contents

    SERIES 6075 AUTO-TUNING PID TEMPERATURE CONTROLLER CONTENTS PAGE SECTION 1 GENERAL INTRODUCTION ..1 1.1 General Description and Cautions ..... . 1 1.2 Specifications .
  • Page 4 SECTION 6 COMMUNICATIONS ... 26 6.1 Communications Modules ..... . . 26 6.1.1 RS485.
  • Page 5: Section 1 General Introduction

    SECTION 1 General Description and Cautions Athena Controls, Inc. is proud of the Series 6075 which you will now use It has been manufactured to our exacting production standards, and packed for maximum protection in shipment You will get years of reliable service from the unit if the information in the manual is followed regarding location, adjustments, and general operation.
  • Page 9: Section 2 Installation Instructions

    SECTION 2 INSTALLATION INSTRUCTIONS Unpacking Unpack the instrument and inspect for shipping damage. Report any damage to the carrier immediitely. Locating Select a location for the controller where it will not be subject to excessive shock vibration, dirt moisture or oil. The ambient temperature of the area should be between 3 2 º...
  • Page 11: Section 3 Output Modules

    SECTION 3 OUTPUT MODULES Module Description The Athena 6075 offers field interchangeable output modules. This unique feature makes it possible to fill output requirements for a variety of applications with a single controller model. Module Type B: This 7A/5A relay (at 120/240 Vac) is used for driving resis- tive heaters.
  • Page 14 Standard Thermocouples Materials I.SA. Type Color Code Iron-Constantant (I/C) White( + Red( - Chromel-Alumel Yellow( + Red( - Copper-Constanan Blue( + Red( - ) Platinum-Platinum 13%Rhodium Platinum-Platinum 10% Rhodium Wiring RTD Circuits 6275 units are designed for 100 Ohm Platinum RTD’s 2-wire RTD’s are connected to terminals and 2 with a jumper connecting 2 to 3.
  • Page 15 watchdog circuits and filtering built into the unit Contacts and coils must be suppressed! One very effective filter is a .1 ufd/600V capacitor in series with a 100 Ohm, 1/2 watt (min.) resistor. This network must be put on all contacts, especially across hard contacts that are switching coils and across the coils themselves.
  • Page 16: Section 5 Operation

    SECTION 5 OPERATION Front Panel Features Touch Key and Indication Operation Layout Process Temperature or Parameter code is viewed on the upper display. Set Point or Parameter setting is viewed on the lower display. Degrees F and C is also displayed. Set Point Key: Allows user to return to set point ENTER/TUNE Key: Enters a selected value into nonvolatile memory.
  • Page 18: Setup

    Basic Series 6075 Setup 1. The 6075 has dual-input ranges which allow selection of one of two ranges and T/C types, by simply moving the position of the internal jumper. To set unit to proper range, remove unit from case and position jumper on top board.
  • Page 19 . R ange of Adjustments (Parameters) All parameters are accessed by pressing the INDEX key. They listed in the order they are displayed when the lNDEX key is pressed. The front panel of the Model 6075 contains a lower display of 5 digits which displays the set point temperature, the other parameter values and degrees F or C.
  • Page 20 Locally Adjustable only (Not by Remote Keyboard) 0=Low, 1 =normal, Auto-Tune Damping -At- 2=High -cF- Configuration 0 to15 (See Note 4) 0-Oil or none, Cooling Type 12xx -ct- 1 -Air, 2-Water Unit ID CODE 0 to 99 -Id- (See Note 5) Baud Rates -bd- 300(0),600( 1)
  • Page 22 key, the unit will advance to the High and Low pressed the INDEX Calibration positions. but index no further until the SETPOINT key is depressed. CAUTION: DO NOT CHANGE THE CALIBRATION LOW [cL(Zero)] O R CALlBRATlON H I G H [cH(Span)] A D J U S T M E N T UNLESS YOU INTEND TO, ARE QUALIFIED AND HAVE A CALIBRATION TEST SETUP CONNECTED.
  • Page 23 SPECIAL NOTE: For Units utilizing only heating output, the cooling gain should be set by the user to the equivalent heat gain. The inverse is also true. Setting CG to 0 initiates an on-off (narrow deadband) output for cooling, which is recommended for cooling-only applications. Setting HG to 0 disables the Heat output.
  • Page 24: Tuning The Controller

    PlD settings or manually setting the unit as desired. Tuning a 3-Mode controller involves three (3) major adjustments; propor- tional Band (Gain), Rate (Derivative) and Reset (lntegral) action. Athena has simplified the adjustment procedure with the incorporation of the Rate and Reset settings into one adjustment "RT"...
  • Page 25: Operating Instructions

    Normal Damping - For processes that: (any combination of the following) have heaters that are properly sized. have good coupling between heater and probe. are considered standard with moderate lags and response time. High Damping - For processes that (any combination of the fol- lowing) - are overpowered - have multiple lags...
  • Page 26: Manual Tuning Procedure

    STEP 6: When ready to start Auto-Tuning calculation of PlD settings press the “Enter/Tune” button. The displays will return to process and set point displayed. The F/C digit will blink while tuning is in pro- cess. Upon completion of tuning, the digit will stop blinking. T stop the Auto-Tuning press standby/cancel.
  • Page 28 4. Press STAND-BY again and temperature will begin to rise. When the pro- cess rises to the desired set point it will probably oscillate. Periodically decrease the Gain (lower the HG number) until a small constant oscilla- tion is obtained. Reducing the Gain by steps of one half (1/2) the previous -HG- setting is an acceptable method to obtain the desired small oscilla- tion.
  • Page 30: Section 6 Communications

    The RS485 multipoint capability allows up to thirty-two (32) units to be con- nected together in a half duplex network More can be added with the use of “repeaters” such as the Athena Model CC.1 interface box This module allows bi-directional data transfer over a shielded twisted pair.
  • Page 31: Ma Current Loop

    Standard and the 232 is the identification number for that particular Stan- dard. The C designates the last revision made to the RS232 standard. The purpose of this standard is to define the electrical characteristics for the interfacing of ”data terminal equipment” and “data communications equip ment”.
  • Page 37: Section 7 Calibration

    SECTION 7 CALIBRATION WARNING: These adjustments are factory set and should only be changed by a qualified person using calibrated equipment. Adjustment is not necessary during the life of these controllers. Zero (-cL-) and Span (cH) Calibration Unlock access to the calibration constants by entering the unlock number (14) into location 9 (-cd-).
  • Page 38: Section 8 Troubleshooting

    SECTION 8 TROUBLESHOOTING Troubleshooting - General Symptom Probable Cause & Corrective Action Display does not light up. No power, blown fuse. Process display shows (- - -) Open thermocouple circuit Shorting terminals 1 or ‘HHHH’ and 2 should indicate temperature at back of case. Repair or replace thermocouple.
  • Page 39: Troubleshooting - Communications

    Athena Controls, Inc. 5145 Campus Drive Plymouth Meeting, PA 19462 Tel: (610) 828-2490 Fax: (610) 828-7084...

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