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Colortronic CTT 1600 Operating Instructions Manual

Dehumidified air dryer with siemens s7 control unit
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Operating Instructions
Dehumidified Air Dryer
CTT 1600
with Siemens S7 control unit
Colortronic GmbH

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  • Page 1 Operating Instructions Dehumidified Air Dryer CTT 1600 with Siemens S7 control unit Colortronic GmbH...
  • Page 2 CTT 1600 Colortronic GmbH Otto-Hahn-Straße 10-14 Colortronic, Inc. D-61381 Friedrichsdorf 155 E., 9th Avenue Runnemede, NJ 08078 Telephone (0 61 75) 7 92-0 Telephone (856) 312-9600 Telefax (0 61 75) 7 92-1 79 Telefax (856) 312-9696 Email info@colortronic.de Email ctusa@colortronic.com Http://www.colortronic.com...
  • Page 3 CTT 1600 Colortronic GmbH retains all rights to change the information in these operating instructions at any time without notice. We assume no liability for any errors or direct or indirect damage resulting in con- text with these operating instructions.

  • Page 4: Table Of Contents

    CTT 1600 TABLE OF CONTENTS 1. General Information (Version: 64.10-8248GB01 04/02) ....1-1 1.1. Warnings and symbols ..........1-2 1.2.
  • Page 5 CTT 1600 5. Maintenance (Version: 64.10-0233GB05 11/02) ......5-1 5.1. Maintenance intervals ..........5-3 5.2.
  • Page 6 CTT 1600 10. Spare parts list (Version: 64.10-0233GB05 11/02) ....10-1 10.1. Switching Cabinet and Operating Unit ......10-5 11.

  • Page 7: General Information (Version: 64.10-8248Gb01 04/02)

    Dehumidified Air Dryer 1. General Information Version: 64.10-8248GB01 04/02 » These operating instructions are addressed to all users of the device. These operating instructions must be used by every person charged with work on the unit. General Information 1-1...

  • Page 8: Warnings And Symbols

    Dehumidified Air Dryer 1.1. Warnings and symbols The following warnings and symbols are used in these operating instructions: » This symbol indicates danger to life! Fatal or serious injury is possible if the corresponding instructions, regulations or warnings are not observed. This symbol indicates that serious injury is possible if the corresponding instructions, regulations or warnings are not observed.

  • Page 9: Explanations And Information

    Dehumidified Air Dryer 1.2. Explanations and information Various terms and designations are used in these operating instructions to ensure clarity. There- fore please note that the terms used in the text stand for the corresponding explanations listed be- low. • Equipment ”Equipment”...

  • Page 10: Safety Instructions (Version: 64.10-0127Gb03 11/02)

    Dehumidified Air Dryer 2. Safety instructions Version: 64.10-0127GB03 11/02 » These safety instructions apply to all persons within the range of action of the equipment. Please inform all persons within the range of action of the equipment of the direct and indirect hazards connected with the equipment. These operating instructions are to be used by all persons assigned activities connected with the equipment.

  • Page 11: For Your Safety

    Do not modify, add other equipment or change the design of the equipment without the approval of the manufacturer. Caution: Danger of accidents! Attachments not supplied by Colortronic must be manufactured in accordance with safety regula- tion EN 294. Danger of accidents! The equipment may only be operated when all the associated components are properly connec- ted up and in accordance with the relevant regulations.
  • Page 12 Take care that the device is not standing on the mains cable. This will prevent danger to people and material! The drying cells must be filled with drying agent before setting-up the dryer (only CTT 1600, CTT 2400). This will prevent damage of material! Check 5 hours after first putting into operation that the drying cells are sufficiently filled with drying agent (only CTT 1600, CTT 2400).
  • Page 13 Dehumidified Air Dryer Maintenance Before starting maintenance work, appoint a supervisor. Inform the responsible personnel before maintenance work on the system is started. Caution: Danger of accidents! Disconnect the equipment from mains supply before starting maintenance procedures to ensure that it cannot be switched on unintentionally. Caution: Danger of accidents! All pipes, hoses and screwed connections should be checked regularly for leaks and damage.

  • Page 14: For The Safety Of The Devices

    When you dispose of drying agents, observe all official rules. Note that drying cells are replaced or refilled by Colortronic only if they are empty. The material level may not fall below 40 % in the drying hopper, when material is continuously re- moved from the drying hopper, but no material is continuously fed into the drying hopper (batch drying).
  • Page 15 CTT 1600, CTT 2400). This will prevent damage of material! Check 5 hours after first putting into operation that the drying cells are sufficently filled with drying agent (only CTT 1600, CTT 2400). This will prevent damage of material! Safety instructions 2-6...

  • Page 16: Start-Up (Version: 64.10-0233Gb05 11/02)

    CTT 1600 3. Start-up Version: 64.10-0233GB05 11/02 » This chapter is directed at the operators of the equipment. This chapter assumes general skills in dealing with drying systems and SPS (PLC) control units. This chapter assumes that the functional description has been read and un- derstood.

  • Page 17: Control System

    CTT 1600 3.1. Control system The control system is switched on at the main switch. The control system is operated via a ”selection window” and the keyboard of the operator panel. The facility’s control system is factory-programmed. Nevertheless, you have to set specific values (basic parameters) which are dependent on the processed material, for instance.

  • Page 18: Flow Chart

    CTT 1600 3.1.2. Flow chart Indicator lamp Valve system Drying chamber Drying blower Return air filter Drying hopper Drying heater Regeneration heater Regeneration blower Regeneration air filter Indicator lamp messages: Green continous light: in process Red continous light: alarm Start-up 3-3...

  • Page 19: Switching On The Dryer

    CTT 1600 3.2. Switching on the dryer Switch on the system by means of the main switch. & The control system carries through a self-test; after that, the name of the dryer and the operation status of the unit are displayed.

  • Page 20: Viewing The Software-Version

    CTT 1600 3.3. Viewing the software-version “±” Press the -key. & Lamp test: all LED’s must light up. The software-version will be displayed (optional). 3.4. Passwords The entry of a password prevents unauthorised persons from having access to the data entered into the control system.
  • Page 21 CTT 1600 Login Press the key “F2". Enter the password. Press the ENTER key. & If the password has been entered correctly, the corresponding password level is displayed. You can now enter data into the control system or modify data which have already been entered.

  • Page 22: Basic Parameters

    CTT 1600 3.5. Basic parameters Press the ”F1"-key. 3.5.1. Turning the devices on/off Select ”Main menu”. Acknowledge with the ENTER-key. Press the ”F2”-key. Dryer on/off ”on” = turn dryer on, ”off” = turn dryer off. Acknowledge with the ENTER-key. Timer on/off Press the SHIFT-key and choose with the arrow-keys the desired operation: ”internal”...
  • Page 23 CTT 1600 Hopper X on/off (X = number of the drying hopper) “on” = releasing drying hopper X, “off” = blocking drying hopper X Acknowledge with the ENTER-key. Hopper heater X on/off (X = number of the hopper heater) “on” = switch on hopper heater X, “off” = switch off hopper heater X Acknowledge with the ENTER-key.

  • Page 24: Entering Dryer Values

    CTT 1600 3.5.2. Entering dryer values Select ”Dryer”. Acknowledge with the ENTER-key. Press the ”F3”-key. Regeneration Heater Act. The regenerated heat temperature will be displayed. Used air Act. The current temperature of the used air will be displayed. Press the “â” key.
  • Page 25 CTT 1600 & If the unit operates with a return air cooler (optional): Return air cooler Target Enter the max. permissible return air temperature (65 °C max.). Higher temperatures are not allowed. Acknowledge with the ENTER-key. Return air cooler Act.

  • Page 26: Entering Hopper Values

    CTT 1600 3.5.3. Entering hopper values Select ”Hopper”. Acknowledge with the ENTER-key. Press the ”F4”-key. Hopper entry X Target (X = number of the drying hopper) Enter the drying temperature for hopper flap X (when operating with supplementary heating). Acknowledge with the ENTER-key.
  • Page 27 CTT 1600 & If the unit operates with motor flaps (optional): Granules X target: _ % = _ °C (X = number of the drying hopper) Enter the material temperature at which the flap (optional) on the drying hopper X should close.

  • Page 28: Observing Processing Status

    CTT 1600 3.5.4. Observing processing status Select ”Status”. Acknowledge with the ENTER-key. Press the ”K1”-key. & The current operation status of individual assembly parts is displayed: e.g.: valve block moved in/moved out/error “moved in” = The upper drying cells are within the drying circuit; the lower ones are regenerated.

  • Page 29: Setting Date And Time

    CTT 1600 3.5.5. Setting date and time & This function is password protected. Press the “K3"-key. Enter the password if requested. Date Press the SHIFT key. By means of the arrow keys, select the desired week-day. By means of the arrow keys, select the shown date.

  • Page 30: Viewing/Changing Language And Contrast

    CTT 1600 3.5.6. Viewing/changing language and contrast & This function is password protected. Press the “K4"-key. Enter the password if requested. Contrast Press the SHIFT key. By means of the arrow keys, select the adjustment which suits you best. Press the ENTER key.

  • Page 31: Changing Parameters

    Press the SHIFT-key and the ”K1”-key. Run on time drying blower -- 300 sec. Standard setting: 300 seconds, changes only after contacting Colortronic Service. Press the “â” key. Parameters The values in this menu may only be changed after contacting Colortronic Service.

  • Page 32: Setting The Timer

    CTT 1600 3.5.8. Setting the timer Select ”Timer”. Acknowledge with the ENTER-key. Press the SHIFT-key and the ”F1”-key. XX ON 00:00 OFF 00:00 (XX = day Mo-Su) Enter for each day the switching on time and the switching off time.

  • Page 33: Starting Continuous Operation

    CTT 1600 3.6. Starting continuous operation When you have carried through all basic settings, you can start with continuous operation. Make sure that hoppers which are not in use are separated from the dehumidified air supply. Make sure that the set drying temperatures are suited for the materials in the hoppers.

  • Page 34: Viewing System Runtime

    CTT 1600 3.7. Viewing system runtime Select ”System runtime”. Acknowledge with the ENTER-key. Press the SHIFT-key and the ”F2”-key. System runtime #.## h r.-blwr. #.## h m.-blwr. #.## h & The runtime of the blowers and the PLC (SPS) is shown in hours.

  • Page 35: Switching The Dryer Off

    CTT 1600 3.8. Switching the dryer off Select ”Main menu”. Acknowledge with the ENTER-key. Press the ”F2”-key. Select ”Dryer off”. Acknowledge with the ENTER-key. Wait until the regeneration phase is finished and the blower has come to a standstill. Switch off the dryer at the main switch.

  • Page 36: Error And Error Correction (Version: 64.10-8248Gb01 04/02)

    Dehumidified Air Dryer 4. Error and error correction Version: 64.10-8248GB01 04/02 » This chapter is directed at the operators of the equipment. This chapter assumes general skills in dealing with drying systems and SPS (PLC) control units. This chapter assumes that the “start-up” description has been read and un- derstood.
  • Page 37 Dehumidified Air Dryer & Alarm messages are displayed in plain language on the screen of the operator device. The display of alarm messages in the operator device can only be erased by pressing the ”ACK” key. The failure is not repaired. A failure is given by flashing of the LED “alarm”.
  • Page 38 Dehumidified Air Dryer View Press the ”F2"-key. All alarm messages with their numbers (see Texts), date, time and the supplement ”K”, ”G”, or ”Q” are displayed. & ”K” = coming (a failure occured) Pressing the “à”-key displays the alarm message in plain text. ”G”...
  • Page 39 The number of current alarm messages is displayed. Press the ESC-key. Delete Press the ”F3"-key. & This function is password protected (Colortronic service). Press the ENTER-key for deleting the messages. Press the ESC-key. Press the “â”-key. Error and error correction 4-4...
  • Page 40 & If there are more current alarm messages than can be saved, a warning message (= residual buffer reached) may be given. This function is password protected (Colortronic service). Overflow warning On/Off Press the SHIFT-key. By means of the arrow keys, select ”on” if a warning message is to be given.
  • Page 41 Dehumidified Air Dryer Text Press the ”F3"-key. All possible alarm messages are displayed with their numbers (see Viewing). For viewing the possible alarm messages, press the arrow keys: PLC (= SPS) Battery is Empty Replace the SPS battery. Main Switch is Off The main switch has been placed in the off position.
  • Page 42 Short circuit check. Excess Temperature Regeneration Heater The regeneration temperature is too high. Check the safety temperature limiter. Colortronic Service. Insufficient Temperature Regeneration Heater The regeneration temperature is too low. Check the regeneration heater. The Safety Switch Regeneration Heater Has Been Actuated Check the heater.
  • Page 43 Check the power supply. Short circuit check. Excess Temperature Drying Heater The drying temperature is too high. Check the safety temperature limiter. Colortronic Service. Insufficient Temperature Drying Heater The drying temperature is too low. Check the drying heater. Safety Switch Drying Heater Check the heater.
  • Page 44 Dehumidified Air Dryer Temperature Measurement Granules Defective Hopper X (X = number of the drying hopper) Check cables and sensor. Check the power supply. Short circuit check. Excess Temperature Granules Hopper X (X = number of the drying hopper) The material temperature is too high. Check the heater.

  • Page 45: Maintenance (Version: 64.10-0233Gb05 11/02)

    Never operate the equipment when partially dismantled. All maintenace and repair work not described in this chapter, may only be carried out by Colortronic service personnel or authorized personnel (ap- pointed by Colortronic). Disconnect the equipment from mains supply before starting maintenan- ce procedures to ensure that it cannot be switched on unintentionally.
  • Page 46 Ensure that materials and incidentals required for operation as well as spare parts are disposed of properly and in an environmentally sound manner. Use only original Colortronic spare parts. Keep record of all maintenance and repair procedures. Maintenance 5-2...

  • Page 47: Maintenance Intervals

    CTT 1600 5.1. Maintenance intervals 5 hours after first putting into operation: Check drying agent in the drying cells, if necessary fil upl Daily: Check warning signs on equipment for good legibility and completeness Clean return air filter and housing (depending on amount of dust collected) Lamp test: if you press the ”+/-”-button longer than...

  • Page 48: Cleaning/Renewing The Air Filters

    CTT 1600 5.2. Cleaning/renewing the air filters Press the ”F2”-key. Select ”Dryer off”. Acknowledge with the ENTER-key. Wait until the blowers have stopped turning. Switch off the dryer at the main switch. Disconnect the power supply. Open the upper panel by means of the provided switch cabinet key.
  • Page 49 CTT 1600 Filter of the electrical cabinet Return air filter Regeneration air filter CTT 1600 Return air filter/Regeneration air filter Loosen the securing nut on the filter housing and remove the housing lid. Remove the return air filter/regeneration air filter.
  • Page 50 CTT 1600 Filter of the electrical cabinet Remove the lid of the filter. Remove the filter mat. Blow through the filter mat with compressed air from inside to outside or renew the filter mat. Clean the filter housing. Use lint-free cleaning rags.

  • Page 51: Tensioning The V-Belts

    CTT 1600 5.3. Tensioning the V-belts Press the ”F2”-key. Select ”Dryer off”. Acknowledge with the ENTER-key. Wait until the blowers have stopped turning. Switch off the dryer at the main switch. Disconnect the power supply. Open the upper panel by means of the provided switch cabinet key.
  • Page 52 CTT 1600 ”Regeneration” Blower Remove the protective grid of the blower (pos. 3). Loosen the nut (pos. 1). Loosen and remove the screw (pos. 2). Slide motor with carrier flange plate (pos. 6) towards the carrier flange housing (pos. 4).
  • Page 53 CTT 1600 ”Drying” Blower Remove the protective grid of the blower (pos. 7). Loosen the nut (pos. 10). Loosen the screw (pos. 11). Replacement: Remove defective V-belts (pos. 32), put on new ones. Re-tensioning: Adjust belt tension by means of screw (pos. 11) in accordance with the informa- tion plate.

  • Page 54: Disposing Of The Drying Agent

    High-pressure blowers with frequency converter operation Blowers work without V-belts! 5.4. Disposing of the drying agent Ensure that drying cells are exchanged by Colortronic or refilled only when empty. Drying agents must be disposed of in accordance with all official regula- tions.

  • Page 55: Changing The Battery Of The Control System

    CTT 1600 5.6. Changing the battery of the control system » This work may be carried through only by qualified personnel trained in the field of electrical engineering. The battery may be changed only with the control system switched on.
  • Page 56 CTT 1600 Store backup batteries in a dry and cool place. Backup batteries can be stored for approx. 5 years. If backup batteries are not treated properly, they can ignite, explode and cause severe burning. & Order number battery: ID 83809 Batteries must be disposed of in keeping with the relevant national envi- ronment protection regulations/guidelines.

  • Page 57: Resetting The Control Values

    CTT 1600 5.6.1. Resetting the control values » This electrical work is intended to be carried out only by trained personnel. & After changing the battery or the PLC the control values should be reset- ted. All control values are set back to the standard settings.

  • Page 58: Functional Description (Version: 64.10-0233Gb01 11/02)

    CTT 1600 6. Functional description Version: 64.10-0233GB01 11/02 » This functional description is intended for all operating personnel of the equipment. Prerequisite for this functional description is general knowledge of dryers and SPS (PLC) systems. Ensure in each case that the operating personnel are sufficiently informed.

  • Page 59: Dryer

    CTT 1600 6.1. Dryer The dryer operates with dehumidified air, i.e. the air is not only heated but also dehumidified befo- re flowing into the drying hopper. This principle allows plastic granules to be dried to a residual moisture content as low as 0.002 % (PET granulate).

  • Page 60: Drying Hopper (Optional)

    CTT 1600 6.2. Drying hopper (optional) The material is dried in the drying hopper. The dehumidified air is forced through the material in the hopper, collecting moisture in the process. The drying hopper must be dimensioned according to its intended use to ensure that the final moisture content is attained. When the hopper is filled for the first time or at the start of a drying procedure, the material in the hopper must be dried com- pletely before material can be removed from the hopper for the first time.

  • Page 61: Return Air Cooler (Optional)

    CTT 1600 6.3. Return air cooler (optional) A return air cooler is generally required in cases in which the return air temperature is over 65 °C. A return air cooler improves the efficiency of the drying cells. The return air cooler reduces the return air temperature to a defined value.

  • Page 62: Hopper Heaters (Optional)

    A device for connection to the dehumidified air supply line is also available. Please note that the function of this combination is different from that of the conventional Colortronic suction boxes. Functional description 6-5...

  • Page 63: Transport, Assembly And Storage (Version: 64.10-8248Gb01 04/02)

    Dehumidified Air Dryer 7. Transport, Assembly and Storage Version: 64.10-8248GB01 04/02 » This chapter is intended for all operating personnel of the equipment. Personnel using these instructions must be instructed in the regulations for the prevention of accidents, the operating conditions and safety regulations and their implementation.

  • Page 64: Transport And Packing

    Dehumidified Air Dryer 7.1. Transport and Packing » Please ensure adequate carrying capacity of the lifting equipment. Note that the dryer system is top-heavy. Risc of toppling! The equipment pass a rigorous operating test in the factory and are packed carefully to avoid transport damage.
  • Page 65 Dehumidified Air Dryer with a workshop crane Check if the eyelets are installed on the dryer housing. If this condition is met, fasten the transport cables to the eyelets. If this condition is not met, mount the eyelets and then fasten the transport cables to the eyelets. Disassemble the eyelets after set-up.

  • Page 66: Assembly

    Dehumidified Air Dryer 7.2. Assembly » Please ensure adequate carrying capacity of the lifting equipment. Check the carrying capacity of the point of installation, particularly if installed on a platform. The place selected for installation should be as free of vibrations as possible. The main switch must be freely accessible.

  • Page 67: Assembly Instructions (Version: 64.10-0233Gb05 11/02)

    CTT 1600 8. Assembly instructions Version: 64.10-0233GB05 11/02 » These installation instructions are intended for persons with skills in electri- cal and mechanical areas due to their training, experience and received in- structions. Personnel using these installation instructions must be instructed in the reg- ulations for the prevention of accidents, the operating conditions and safety regulations and their implementation.

  • Page 68: Mounting Of The Suction Device For Regeneration Exhaust Air

    CTT 1600 8.1. Mounting of the suction device for regeneration exhaust air When plastics are dried which produce hazardous gases, environmentally sound disposal of the regeneration exhaust air must be provided. The throughput of the regeneration blower may not be changed.

  • Page 69: Filling Up The Drying Cells

    CTT 1600 8.2. Filling up the drying cells At delivery the drying cells are not filled with drying agent. Before filling up check that the screw connection (B) is mounted. Remove the tension ring and the tin plate (A). Fill the drying cell with drying agent up to Füllstand...

  • Page 70: Connection Of The Air Coolers (Optional)

    CTT 1600 8.3. Connection of the air coolers (optional) A return air cooler is generally required in cases in which the return air temperature is over 65 °C. The return air cooler can be connected to a coolant circuit or the water mains network.

  • Page 71: Electrical Connection

    The electrical connection may only be carried through or assigned by Color- tronic service staff or by qualified staff authorized by Colortronic. Other persons are not permitted to carry through the electrical connection.

  • Page 72: Technical Data (Version: 64.10-0233Gb05 11/02)

    CTT 1600 9. Technical Data Version: 64.10-0233GB05 11/02 Basic Equipment · Centrally monitored PLC S7 drying control system with operator panel OP 7 · Central temperature controls for all heating elements to ensure constant temperature levels · Safety temperature limiter for all heaters ·...
  • Page 73 CTT 1600 Dimension sheet 3450 All dimensions are in mm. Subject to alteration. Technical Data 9-2...

  • Page 74: Spare Parts List (Version: 64.10-0233Gb05 11/02)

    CTT 1600 10. Spare parts list Version: 64.10-0233GB05 11/02 » This spare parts list is intended to be used only by trained personnel. Other persons are not permitted to modify or repair the equipment. & ID-numbers for units with special voltage, for ex. blowers, only on re- quest.
  • Page 75 CTT 1600 12, 16 99716 Ball bearing 05190 Valve stem 86363 Spindle motor 24 V Spare parts list 10-2...
  • Page 76 CTT 1600 31536 Sealing 16517 Motor flap (optional) 86379 Motor 88952 Sealing 83986 Moisture sensor 86387 Sensor PT 100 (12 m) Spare parts list 10-3...
  • Page 77 CTT 1600 S89532 Blower HRD 1/5 94211 V-belt 83970 Blower HRD 7/12 31924 Acoustic cover 83963 V-belt 31516 Drying cell 96196 Drying agent 96143 Tension ring 28420 Sealing ring 85533 Tension ring 86356 Filter cartridge 88226 Filter cartridge 21027 Sealing...

  • Page 78: Switching Cabinet And Operating Unit

    CTT 1600 Control 27892 Front panel with flow chart 83468 CPU 315 (S7) 83809 Battery 83811 OP 7 84156 84157 Filter Hopper heaters Cable set heating 95828 Tubular heating element 230 V, 3 kW 85652 Safety temperature limiter (STB) Flaps (optional)

  • Page 79: Electrical Manual (Version: 64.10-0133Gb01 10/97)

    Dehumidified Air Dryer 11. Electrical manual Version: 64.10-0133GB01 10/97 » This electrical manual is intended to be used only by Colortronic service personnel and trained personnel authorized by Colortronic. Other persons are not permitted to modify or repair the equipment. ¨...
  • Page 80 Dehumidified Air Dryer 12. Accessories Version: 64.10-0134GB01 10/97 ¨ Entering values on the OP 7 / 17 ¨ Flap control with Fuzzy-Logic ¨ Elektror High-pressure blower with frequency converter operation ¨ Elektror High-pressure blower ¨ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ¨...

  • Page 81: Accessories (Version: 64.10-0134Gb01 10/97)

    Accessories Entering values on the OP 7 / 17 Colortronic GmbH...
  • Page 82 General Operation Entering Values General procedure In input fields, values can be entered on the OP and transferred to the PLC. To do this, proceed as follows: Step Procedure Branch initially to the screen you require and then to the corresponding screen entry. Using the arrow keys, select the input field you require within the screen entry.
  • Page 83 General Operation 3.3.1 Entering Numerical Values Input using numer- In fields that allow the operator to enter a numerical value, you enter the nu- ical keypad merical value character by character using the keypad on the system key- board. Changing the If there is a value in the field already, it is cleared completely from the field value when the first character is entered.
  • Page 84 General Operation 3.3.2 Entering Alphanumeric Values Mixed input of With the input of alphanumeric values, digits and letters are mixed. digits and letters For the numerical components of the input, proceed as described in section 3.3.1. If, however, you wish to enter a letter at the current cursor position, you must enable the corresponding alphanumeric font.
  • Page 85 General Operation Extended charac- If the characters available on the keypad are not sufficient for the alphanu- ter set meric input, you can select additional letters and special characters from the extended character set. The extended character set is available for all KC type fields.
  • Page 86 General Operation 3.3.3 Entering Symbolic Values Text instead of a When you enter a symbolic value, text is displayed instead of the value. If a value field has to be filled by entering symbolic values, take the value from a list of options.
  • Page 87 Accessories Flap control with Fuzzy-Logic Colortronic GmbH...
  • Page 88 Flap control with Fuzzy-Logic Observe that the hopper is not switched off after the flap has closed. Turning hopper off: see chapter “start-up, turning the devices on/off”. Control unit “flap” Switch position: = “Quick closing” flap closes quick 1 = “Slow closing” flap closes controlled 2 = “Automatic control”...

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