Operating Instructions SM2-615 Dehumidified Air Dryer STT 300 with Simens control unit Sterling Material Processing
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STT 300 Sterling Material Processing 5200 West Clinton Ave. Milwaukee, WI 53223 Telephone: (414) 354-0970 Fax: (414) 354-6421 www.sterlco.
STT 300 Sterling Material Processing retains all rights to change the information in these operating instructions at any time without notice. SM2-615 We assume no liability for any errors or direct or indirect damage resulting in context with these operating instructions. Copying, translation or publication in any form except for personal use of purchaser requires approval from Sterling Material Processing. All rights reserved.
STT 300 TABLE OF CONTENTS 1. General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 1.1. 1.2. 1.3. 1.4. 1.5. Warnings and symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 Explanations and information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 Legal basis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
STT 300 5. Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1 5.1. 5.2. 5.3. 5.4. 5.5. 5.6. Maintenance intervals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3 Cleaning/renewing the air filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4 Tensioning the V-belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
STT 300 10. Spare parts list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1 10.1. Switching Cabinet and Operating Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-4 11. Electrical manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-1 o Connection diagram no.: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ o Currently not available; will be delivered at a later date! 12. Accessories . . . . .
Dehumidified Air Dryer 1. General Information These operating instructions must be used by every person charged with work on the unit. SM2-615 » These operating instructions are addressed to all users of the device.
Dehumidified Air Dryer 1.1. Warnings and symbols The following warnings and symbols are used in these operating instructions: L This symbol indicates that serious injury is possible if the corresponding instructions, regulations or warnings are not observed. F This symbol indicates that extensive damage to equipment is possible if the corresponding instructions, regulations or warnings are not observed. & This symbol indicates information important for becoming familiar with the equipment, i.e.
Dehumidified Air Dryer 1.2. Explanations and information Various terms and designations are used in these operating instructions to ensure clarity. Therefore please note that the terms used in the text stand for the corresponding explanations listed below. • Equipment ”Equipment” can mean an individual unit, a machine or an installation. • Operating personnel The ”operating personnel” are persons operating the equipment on their own responsibility or according to instructions.
Dehumidified Air Dryer 2. Safety instructions » 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. Knowledge of the English language is prerequisite.
Dehumidified Air Dryer 2.1. For your safety General The operating personnel of this equipment must be at least 16 years old. Please read these operating instructions carefully before taking into operation for the first time. Contact us should questions arise. This avoids injury and damage to equipment! These operating instructions must be kept available at all times at the place of operation of the equipment.
Dehumidified Air Dryer Assembly Compare the connected loads with those of the mains supply. Danger of injury through electrical shock! When using lifting gear, please observe the pertaining regulations. Caution: Danger of accidents! 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 Sterlingmust be manufactured in accordance with safety regulation EN 294.
Dehumidified Air Dryer When drying plastics which emit gases dangerous for human health, take care that the regeneration exhaust air is disposed of without polluting the environment. This will prevent danger to people and material! Operate the dryer only if there is at least one drying hopper operating. This will prevent damage of material! Maintenance Before starting maintenance work, appoint a supervisor. Inform the responsible personnel before maintenance work on the system is started.
Dehumidified Air Dryer 2.2. For the safety of the devices Never change settings without carefully assessing the consequences. Use only original Sterlingspare parts. Observe the maintenance instructions. Keep a record of all maintenance works and repairs. Please note that electronic components can be damaged by static discharge. Before initial operation and in regular intervals, make sure that no electrical connections are loose. Never readjust sensors without exactly knowing their functions.
STT 300 3. Start-up Version: 64.10-8266GB01 05/02 » 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 understood. It should be ensured in each and every case that the operators have the relevant skills. F Note down all set values of the control system.
STT 300 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. The values entered are stored in the control system and remain so, even after the unit is switched off or in the event of a power cut.
STT 300 3.1.2.
STT 300 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. F Unblock the control system: Keep the ACK key pressed until the LEDs of the keys K1 - K4 light up. 3.2.1.
STT 300 3.3. Viewing the software-version Press the “±”-key. & The software-version will be displayed. 3.4. Passwords The entry of a password prevents unauthorised persons from having access to the data entered into the control system. Important data can then be entered or modified only after the password has been entered. If you make no entries for more than 10 minutes, the access is blocked and you have to re-enter the password.
STT 300 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. Press the ESC key. Logout Press the key “F3". & Only data for which no password is necessary (= password level 0) can now be entered into the control system or modified. Press the “â“ key. Edit Press the key “F2".
STT 300 3.5. Basic parameters Press the ”F1"-key. 3.5.1. Turning the devices on/off Select ”Main menu”. Acknowledge with the ENTER-key. or 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” = operation with timer (operation at OP7, see chapter timer), “external” = operation with timer (if present), ”off” = operation without timer.
STT 300 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. SM2-615 Press the ”F1"-key.
STT 300 3.5.2. Entering dryer values Select ”Dryer”. Acknowledge with the ENTER-key. or 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. Dew point max. Enter the maximum permissible (worst allowed) dew point temperature (-35 to 28 °C) (-31 to 82.4°F). Acknowledge with the ENTER-key. Dew point Act. The current dew point temperature will be displayed.
STT 300 & If the unit operates with a return air cooler (optional): Return air cooler Target Enter the max. permissible return air temperature (65 °C max.) (149°F). Higher temperatures are not allowed. Acknowledge with the ENTER-key. Return air cooler Act. The current return air temperature will be displayed. & The cooling effect of the return air cooler is highly dependent on the cooler circuit. The lower the value chosen for the return air temperature, the better the efficiency of the drying cells.
STT 300 3.5.3. Entering hopper values Select ”Hopper”. Acknowledge with the ENTER-key. or 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. Hopper entry X Act. (X = number of the drying hopper) The current temperature at the feed opening of hopper flap X will be displayed. & If there is a cable break “+0 °C” (32°F) is displayed.
STT 300 & 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. Confirm with the ENTER key. & This value is entered in percent of the temperature on the hopper inlet. The material temperature calculated by the control system for closing the flap on the drying hopper X is displayed in °C. Granules X act.
STT 300 3.5.4. Observing processing status Select ”Status”. Acknowledge with the ENTER-key. or 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. “moved out” = The upper drying cells are regenerated; the lower ones are within the drying circuit. “error” = An error has occurred.
STT 300 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. Press the SHIFT key. Enter the desired date. Press the ENTER key. Time Enter the desired time. Press the ENTER key. SM2-615 Press the ”F1”-key.
STT 300 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. & Depending on the outside temperature, the brightness of the screen may vary. Language Press the SHIFT key. By means of the arrow keys, select the desired language (if present). Press the ENTER key. SM2-615 Press the “F1"-key.
STT 300 3.5.7. Changing parameters Select ”Parameters”. Acknowledge with the ENTER-key. or Press the SHIFT-key and the ”K1”-key. Run on time drying blower -- 300 sec. Standard setting: 300 seconds, changes only after contacting SterlingService. Press the “â” key. Parameters F The values in this menu may only be changed after contacting SterlingService. SM2-615 Press the ”F1"-key.
STT 300 3.5.8. Setting the timer Select ”Timer”. Acknowledge with the ENTER-key. or 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. Acknowledge with the ENTER-key. & Example: Fr Sa Su Mo ON ON ON ON 08:00 00:00 20:00 00:00 OFF OFF OFF OFF 23:59 23:59 08:00 00:00 The dryer starts on Friday at 08:00 in the morning, runs through without interruption until sunday at 08:00 and switches off.
STT 300 3.6. Starting continuous operation When you have carried through all basic settings, you can start with continuous operation. F 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. After first filling, do not process the material until after the dwelling time. If a return air cooler is installed, switch on the coolant circuit of the return air cooler.
STT 300 3.7. Viewing system runtime Select ”System runtime”. Acknowledge with the ENTER-key. or Press the SHIFT-key and the ”F2”-key. System runtime PLC r.-blwr. m.-blwr. The runtime of the blowers and the PLC (SPS) is shown in hours. SM2-615 & X.XX h X,XX h X.
STT 300 3.8. Switching the dryer off Select ”Main menu”. Acknowledge with the ENTER-key. or Press the ”F2”-key. Select ”Dryer off”. Acknowledge with the ENTER-key. L Wait until the regeneration phase is finished and the blower has come to a standstill. Switch off the dryer at the main switch. Disconnect the power supply. SM2-615 F Never switch off the dryer directly at the main switch.
Dehumidified Air Dryer 4. Error and error correction » 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 understood. SM2-615 It should be ensured in each and every case that the operators have the relevant skills.
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”. If the alarm message is acknowledged by pressing of the “ACK” key, but the failure is not yet eliminated, the flashing changes to steady light.
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” = going (the resent for the failure has gone) ”Q” = reset (the display of the alarm message in the operator device has been erased by pressing the ”ACK”-key) Press the ESC-key. Print (Optional) & This function is password protected.
Dehumidified Air Dryer Number Press the ”F2"-key. Total messages The number of all alarm messages is displayed. Waiting messages The number of current alarm messages is displayed. Press the ESC-key. Delete Press the ”F3"-key. & This function is password protected (Sterlingservice). Press the ENTER-key for deleting the messages. Press the ESC-key. SM2-615 Press the “â”-key.
Dehumidified Air Dryer Overflow Press the ”F2"-key. & 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 (Sterlingservice). Overflow warning On/Off Press the SHIFT-key. By means of the arrow keys, select ”on” if a warning message is to be given. By means of the arrow keys, select ”off” if no warning message is to be given. Press the ENTER-key.
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. The safety temperature limiter of the drying or the regeneration heater, respectively, has been activated. The safety temperature limiter of a hopper heater has been activated. Error valve block.
Dehumidified Air Dryer Check the blower. Vacuum sensor defective. Temperature Measurement Regeneration Heater Defective Check the cables and the sensor. Check the power supply. Short circuit check. Excess Temperature Regeneration Heater The regeneration temperature is too high. Check the safety temperature limiter. SterlingService. Insufficient Temperature Regeneration Heater The regeneration temperature is too low. Check the regeneration heater.
Dehumidified Air Dryer Temperature Measurement Drying Heater Defective Check cables and sensor. Check the power supply. Short circuit check. Excess Temperature Drying Heater The drying temperature is too high. Check the safety temperature limiter. SterlingService. Insufficient Temperature Drying Heater The drying temperature is too low. Check the drying heater. Safety Switch Drying Heater Check the heater. Check the fuses. Short circuit check of the heater.
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. Check the throttle valve. Valve Error Hopper X (X = number of the drying hopper) The throttle valve does not close or closes too slowly. Check the throttle valve. SM2-615 Press the “F1"-key.
STT 300 5. Maintenance » This chapter is intended for persons with skills in electrical and mechanical areas due to their training, experience and received instructions. Personnel using the instructions in this chapter must be instructed of the regulations for the prevention of accidents, the operating conditions and safety regulations and their implementation. Ensure in each case that the personnel are informed. For maintenance work taking place at heights of over approx.
STT 300 F Please observe the maintenance schedule. Before starting maintenance work, clean the equipment of oil, fuel or lubricants. 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 Sterling spare parts. SM2-615 Keep record of all maintenance and repair procedures.
STT 300 5.1.
STT 300 5.2. Cleaning/renewing the air filters Press the ”F2”-key. Select ”Dryer off”. Acknowledge with the ENTER-key. L Wait until the blowers have stopped turning. Switch off the dryer at the main switch. Disconnect the power supply. & Clogged filters reduce the volume of circulating air to a substantial degree and result in decreased dryer efficiency. In addition, the heating elements may be damaged due to clogged filters. SM2-615 F Open the upper panel by means of the provided switch cabinet key.
STT 300 Return air filter Loosen the securing nut on the return air filter housing and remove the housing lid. Return air filter Regeneration air filter Remove the return air filter. Clean the return air filter with compressed air from inside to out or renew the filter. Never knock the return air filter on the floor. Clean the return air filter housing. Use lint-free cleaning rags. Re-install the cleaned/new return air filter. Mount the lid and fasten the securing nut. Close the panel.
STT 300 Regeneration air filter Loosen the securing nut on lid of the regeneration air filter. Remove the lid and regeneration air filter housing. Loosen the two wing nuts. Remove the circular grid. Remove the filter mat. Blow through the filter mat with compressed air from the inside to the outside, or renew the filter. Re-install the cleaned/new filter. Replace the circular grid. Fasten the two wing nuts on. Replace the regeneration air filter housing and the lid of the regeneration air filter.
STT 300 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. Re-install the cleaned/new filter mat. Replace the lid of the filter. F Never operate the dryer without filter mat.
STT 300 5.3. Tensioning the V-belts Press the ”F2”-key. blower ”regeneration heater” Select ”Dryer off”. Acknowledge with the ENTER-key. L Wait until the blowers have stopped turning. Switch off the dryer at the main switch. Disconnect the power supply. blower ”drying heater” STT 300 F Open the upper panel by means of the provided switch cabinet key.
STT 300 Blower ”regeneration heater” / Blower ”drying heater” 1 2 3 6 5 4 3 Remove the protective grid of the blower (position 3). Loosen the nut (position 1). Loosen and remove the screw (position 2). Slide motor with carrier flange plate (position 6) towards the carrier flange housing (position 4). Remove defective V-belts (position 5), put on new ones. F Attention should be given to exact alignment of the V-belt pulleys.
STT 300 High-pressure blowers with frequency converter operation F Blowers work without V-belts! 5.4. Disposing of the drying agent Ensure that drying cells are exchanged by Sterlingor refilled only when empty. Drying agents must be disposed of in accordance with all official regulations. Used drying agents are to be disposed of as hazardous waste, as it may be contaminated with foreign substances from the materials dried in the system.
STT 300 5.6. Changing the battery of the control system » F 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. Open the control box by means of the control box key which is part of the supply. Open the front door of the CPU. Pull the backup battery with cable out of the compartment.
STT 300 L 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 SM2-615 Batteries must be disposed of in keeping with the relevant national environment protection regulations/guidelines.
STT 300 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 resetted. All control values are set back to the standard settings. Open the control box with the switch box key which is part of the supply. Turn the key to the STOP position. Turn the key to the MRES position.
STT 300 6. Functional description » 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. SM2-615 Ensure in each case that the operating personnel are sufficiently informed.
STT 300 6.1. Dryer The dryer operates with dehumidified air, i.e. the air is not only heated but also dehumidified before 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). The dryer operates continuously, i.e. dehumidified and, if necessary, heated air is produced continuously. F The dryer is designed for continuous operation.
STT 300 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 completely before material can be removed from the hopper for the first time.
STT 300 6.3. Return air cooler (optional) F A return air cooler is generally required in cases in which the return air temperature is over 65 °C (149°F). A return air cooler improves the efficiency of the drying cells. The return air cooler reduces the return air temperature to a defined value. The return air temperature is set at the operation panel. & The lower the value chosen for the return air temperature, the better the efficiency of the drying cells.
STT 300 6.4. Hopper heaters (optional) If differing drying temperatures are required in the different drying hoppers, hopper heaters must be installed on the drying hoppers. The drying temperature of each drying hopper can be set centrally at the dryer. 6.5. Automatic motor flaps (optional) Automatic motor flaps cut off the drying hopper from the drying circuit as soon as the material is completely dried. The supplementary heating system is also switched off.
Dehumidified Air Dryer 7. Transport, Assembly and Storage » 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. Ensure in each case that the operating personnel are sufficiently informed.
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. Please check packing on delivery for transport damage. The inlet and discharge flanges are sealed with plugs, so that no dirt can enter during transport. Plugs must be removed before assembly.
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.
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. Ground the equipment against electrostatic charging. A special foundation is not required for installation.
Dehumidified Air Dryer 8. Assembly instructions Version: 64.10-8248GB01 04/02 » These installation instructions are intended for persons with skills in electrical and mechanical areas due to their training, experience and received instructions. Personnel using these installation instructions must be instructed in the regulations for the prevention of accidents, the operating conditions and safety regulations and their implementation. Ensure in each case that the personnel are informed.
Dehumidified Air Dryer 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. It must be taken into consideration when installing a disposal system (e.g. exhaust system) that regeneration exhaust air is extremely humid.
Dehumidified Air Dryer 8.3. Electrical connection » Observe the rules of the local electricity board. Check that the supply voltage and the power frequency are in accordance with the data on the name plate of the device. The electrical connection may only be carried through or assigned by Sterling service staff or by qualified staff authorized by Sterling. Other persons are not permitted to carry through the electrical connection. The main switch must be freely accessible.
STT 300 9. Technical Data Basic Equipment · Centrally monitored Mitsubishi 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 · Designed for optimal regeneration time due to constant monitoring of the moisture level in the drying cells or desiccant beds.
STT 300 Dimension sheet SM2-615 All di mensions are in mm (in). Subject to alteration.
STT 300 10. Spare parts list » This spare parts list is intended to be used only by trained personnel. & ID-numbers for units with special voltage, for ex. blowers, only on request. SM2-615 Other persons are not permitted to modify or repair the equipment.
STT 300 3 4 2 1 12 ID-number Description 1 87788 93741 High-pressure blower HRD 1/2, 0,5 kW, 400 V/50 Hz V-belt 97762 95819 Silicon hose Pull-button 2 95828 85276 Tubular heating element 230 V, 3 kW (drying, optional) Temperature limiter STB 160-250 °C (drying, optional) 3 86363 Spindle motor 24 V 4 87094 93795 85275 Tubular heating element 230 V, 3 kW (regeneration) Tubular heating element 230 V, 2450 W (regeneration) Temperature limiter STB 360-500 °C (680-932°F) (regeneration) 12 83
STT 300 5 6 PE 11 7 8 10 9 Pos.
STT 300 Accessories 85241 Digital timer (extern, optional) 86371 Multiplier Pt 100 (3 m) (9.84 ft) 89846 Multiplier Pt 100 (6 m) (19.79 ft) 93303 Multiplier Pt 100 (9 m) (29.53 ft) 86387 Multiplier Pt PT 100 (12 m) (39.47 ft) 83015 Multiplier Pt 100 (15 m) (49.
Dehumidified Air Dryer 11. Electrical manual This electrical manual is intended to be used only by Sterling service personnel and trained personnel authorized by Sterling. Other persons are not permitted to modify or repair the equipment. ¨ Connection diagram no.
Dehumidified Air Dryer 12.
Accessories 02/01GB Entering values on the OP 7 / 17 Sterling Material Processing
General Operation 3.3 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 1 Branch initially to the screen you require and then to the corresponding screen entry. 2 Using the arrow keys, select the input field you require within the screen entry. 3 Then enter your value. Depending on how the field has been configured, values may be input as inputs of numerical values (refer to section 3.3.
General Operation 3.3.1 Entering Numerical Values Input using numerical keypad In fields that allow the operator to enter a numerical value, you enter the numerical value character by character using the keypad on the system keyboard. Changing the value If there is a value in the field already, it is cleared completely from the field when the first character is entered. Once input has been started, you cannot exit from the field until the input has been entered or canceled.
General Operation 3.3.2 Entering Alphanumeric Values Mixed input of digits and letters With the input of alphanumeric values, digits and letters are mixed. Entering A to F characters A to F characters can be entered directly with activated Shift Lock mode using numeric keys 1 to 6. If you want to enter digits again after the letters, Shift Lock mode must be de-activated.
General Operation Extended character set If the characters available on the keypad are not sufficient for the alphanumeric 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. To enter the string 18OKT61, for example, proceed as follows: Step Procedure 1 Press in succession 2 Press Shift-LED is on. 1 A 8 \ The extended character set is available.
General Operation 3.3.3 Entering Symbolic Values Text instead of a value When you enter a symbolic value, text is displayed instead of the value. If a field has to be filled by entering symbolic values, take the value from a list of options. To do so, proceed as follows: Step 1 Procedure In the input field press Shift LED is on. \ The list of options with its configured symbolic inputs is activated. 2 Select the value you require using the arrow keys.
Accessories 10/00GB Flap control with Fuzzy-Logic Sterling Material Processing
Flap control with Fuzzy-Logic F 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”.
