K Series Controllers / mini-programmers with wattmeter function and independent timer USEFUL APPLICATIONS Input for TC, RTD, PTC, NTC, mA or V Shoemaking Machineries User Calibration Glueing and binding machines (hot glue) H/C PID Control with overshoot control, self-tune and 2 Autotuning Packaging and blister packing machines algorithms Paint booths 8 segment programmer function with segment recovery, 2 events T-shirt printing and stasis control (guaranteed soak) Climatic chambers and incubators Independent timer with 4 functioning modes Hot runner H/C On/OFF Control with compressor protection time Glass bending ovens Wattmeter for calculating the instantaneous power and energy used Extruders Digital Retransmission of the set point Industrial baking or large kitchens Counter for days and hours worked with programmable threshold Continuous multi-zone ovens for preventative maintenance (for PCB, for leather goods, etc.) Delay at the start up function Ceramics ovens Parameter sequence freely programmable Heat-treatment ovens Ramp to set point change Ovens for goldsmiths and dentists RS485 Serial Communication with Modbus RTU protocol Simple cascade controls Soft start Chillers May 2012K Series PROGRAMMER FUNCTION TWO AUTOTUNING ALGORITHMS In order to meet the clients needs and those of their production Applied example: processes, ASCON TECNOLOGIC have developed two autotuning Paint booth and drying chamber for spray paints (spray booths for algorithms (as well as adaptive self-tuning): bodywork). Oscillatory autotuning and the fast type. - During the painting phase, the temperature inside the booth must remain at 20C and the air used for its ventilation must come from - Oscillatory autotuning is the classic type that requires 3 outside. oscillations to be made around a set point. - Once the painting is Finished, the operator leaves the booth, closes This type of tuning is particularly accurate and can be set up at any the door and starts up the drying cycle. moment. However, it takes a long time and generates an overshoot During this phase the instrument closes the air gate and recycles that, although not exaggerated, may not be appreciated. the air inside the booth by means of which energy consumption is reduced. - Fast autotuning on the other hand is much faster and therefore particularly suitable for very slow processes. door Another of its characteristics is that it does not generate overshoot (the algorithm aims at keeping the PV under the set point). Finally fast autotuning, applied in multi-loop systems, feels the dragging effects produced by neighbouring loops much less and is therefore particularly suitable for machines such as extruders, - When the drying phase is over but before the operator can enter hot-runners, continuous ovens, etc. the booth, it is necessary to re-open the air gate and ensure that: 1) The air inside the booth has been replaced with air from outside. 2) The temperature in the cabin is lower than the pre-established USER CALIBRATION value. - The thermal proFile needed is as follows. This function allows the manufacturer of the machine to calibrate Out 1 = Heating output the entire measuring chain thus compensating for all errors due Out 2 = Event 1 to: Out 3 = Programme running - sensor position Event 1 = in ON during ramp 1, stasis 1, ramp 2, and stasis 2. - class of sensor Once the programme is running the door stays blocked. - accuracy of the instrument. The user calibration does NOT modify the plant calibration and can always be cancelled. The control function of the stasis allows us to end the programme DIGITAL RETRANSMISSION (therefore allowing access to the operator) ONLY when the temperature in the booth has reached the programmed value (in the By making use of serial communication and without using a PC, it is example Pr.S3). In addition, if a power down occurs during program possible for an instrument (Master) to send its operative set points execution, at the next power up, the instrument is able to continue to other instruments (Slave). the program execution starting from the segment in progress and, Furthermore, each slave instrument can add one of its offsets to the if the segment was a soak, the restart point will take care of the value received. soak time already made (with an accuracy equal to 30 min.) It is therefore possible to modify the set point of all the connected instruments by modifying the set point of the master only. ACCESSORIES Typical applications include continuous ovens, hot-runners, polymerization ovens, etc. A01 - Programming key Makes it possible to: RS 485 - Memorize the conFiguration of an instrument to transfer it to other instruments - Transfer a conFiguration to a PC - Memorize a conFiguration recorded in a PC - Let the instrument converse directly with a PC. Master WinTec - Supervisor - Data Acquisition Slave 1 Slave 2 Slave n - Supervision - Alarm management - Recipe management - Trend 2 - Reports.