Instruction Manual Athena 6050 Temperature Controllers -THENIL
INSTRUCTION MANUAL ATHENA 6050 Automatic Tuning Temperature Controller SPECIFICATIONS: Inputs: Line Voltage 120/240 Vac +lO%, -15%, 50, 60 Hz Sensor Thermocouple Power Consumption Less than 6 VA (Instrument) Ranges Available J Couple 0-1400°F (O-760°C) K Couple 0-2500°F (O-137O°C) Accuracy: 0.2% of full scale Temperature Stability 5 m V/°C Max 3m V/°C typ. Cold end tracking 0.
Display update rate: 5 times per second Filtering: Analog and digital filtering techniques increase stability of process and display. °F/°C: Internal switch selection-process, set point. output: Heating only -B Relay (time proportioning) SPST relay 7 Amps resistive at 120 Vac, 5 amp resistive at 240 Vac, 50 VA inductive. -F Current proportional -S Pulsed voltage -T Triac time proportional 4-20mADC into 500 Ohm max. For driving SCR power controllers.
3
FRONT PANEL AOJUSTMENTS Touch Key 1 Index: Allows the following adjustments to be selected. 1) Set point temperature O-14OO'F (760°C) O-2500°F (O-137O°C) 2) Heat cycle time *1 to 120 seconds 3) Prop. Band (indicated as gain) 0.25-25% of span 4) Rate with tracking reset **4-255 seconds 5) Auto Tune (AT) Up/Down keys: increases/decreases values of above adjustments.
3. Loss of power or turn-off during warm-up requires a re-start from ambient. 4. Change of state processes, i.e. solid to liquid or liquid to gas, may introduce erroneous tuning parameters during process warm-up. GENERAL 1. Accurately measures, linearizes and displays temperature in °F and °C. 2. Automatically calculates and displays parameters-heat gain, and rate/reset time. 3.
Output Modules The Athena 6050 offers users 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 resistive heaters. NOTE: Do not use this output module with mechanical contactors because they generate an excessive EM1 field which can interfere the 6050's microprocessor.
INTERNAL SWITCHES Damping Control -To allow the controller to provide automatic tuning for processes with varying heating characteristics and with varying heating capabilities, the 6050 offers three damping choices: High damping: for over-powered heating systems, systems with multiple heat lags, and/or poor coupling between the heater and the temperature sensor.
THERMOCOUPLE PLACEMENT Proper thermocouple placement can eliminate many problems in the system. The probe should be placed so that it can detect any temperature change with minimal thermal lag. In a process that requires fairly constant heat output, the probe should be placed close to the heater. In processes where the heat demand is variable, the probe should be close to the work area. Some experimenting with probe location is often needed to find its optimum position.
OPERATING INSTRUCTIONS How to Start the automatic tuning procedure STEP 1: Energize the unit and proceed immediately to step 2. STEP 2: Place the unit on standby by holding the "Index" button until the "Autotune" LED lights then press the Cancel button. The unit is now ready for set point and cycle time entry. STEP 3: To enter a set point: A) Hold "Index" button until the SP LED lights and B) Use the appropriate touch key, either up or down to enter set point.
How to override automatic tuning parameters It is possible to set or fine tune three mode parameters manually on the 6050. To manually enter parameters: 1) Press "Index" button until the LED for the desired parameter lights. 2) Enter the new parameter using the up or down key. 3) Press the "enter" button. The new parameters will now take control of the process. To calculate the PID parameters without using the automatic tuning mode, consult the Athena 6000/6200 instruction manual.
TROUBLE SHOOTING Front dark - no instrument power. Process display shows CCCC - Open thermcouple. Short terminals 1 and 2. Process display should indicate temperature at back of case. Repair or replace thermocouple. About Half or Twice Expected Reading - Check position of °C/°F switch. Short 1 and 2 to read room temperature. 22-30 is °C, 70-85 is °F. About 30% Error - Wrong thermocouple type. Disconnect couple. "J" units over range above 14OO°F, "K" above 2500°F.
WARRANTY This equipment is warranted to be free from defects of material and workmanship. It is sold subject to our mutual agreement that the liability of Athena Controls, Inc. is to replace and/or repair at its factory, provided the equipment is returned, transportation prepaid within (2) years of its purchase. The purchaser agrees that Athena Controls, Inc. shall assume no liability for consequential damages resulting from its use or packaging of shipments returned to the factory.
dTHENd Controls, Inc.
