Part A, Section 1. Operation A4EN [3V - A - AAXV] V Issued 5/00. E 2000 Nordson Corporation All rights reserved

Transcription

1 Part A, ection 1

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3 A1-1 ection A 1 WARNING: Allow only qualified personnel to perform the following tasks. Follow the safety instructions in this document and all other related documentation. 1. Introduction This section describes how to operate your unit and monitor your system. Before you operate your unit, you must first program it and prepare it for first operation. Refer to ystem Programming Procedures and ystem Preparation in the Installation section of this manual. 2. Operating Procedures This part of the section includes the following routine operating procedures: Turning the seven-day clock on and off tarting the unit automatically or manually Checking the adhesive level and filling the tank Placing the unit in standby mode Taking the unit out of standby mode hutting down the unit automatically or manually Refer to ystem Monitoring Procedures in this section for procedures on checking the zone temperatures, checking the programmed settings, checking the fault log, and running a system test.

4 A Operating Procedures (contd) Figure A 1-1 shows the Vista operator panel keys and displays Fig. A 1-1 Operator Panel 1. ystem tatus area 2. Displays area 3. ystem etup area 4. ystem Controls area Turning the even-day Clock On and Off Press the CLOCK key to turn the seven-day clock on and off. The CLOCK light turns on when the clock is on. If the clock is not turned on, the unit s automatic, clock-related functions will not occur. Automatically tarting the Unit When the seven-day clock is on, the heaters turn on automatically. If your unit has a piston pump and if the auto-energize pump feature is on, the pump will automatically start either when the system reaches the READY condition or the when tank reaches a temperature you have selected. If your unit has a gear pump, press the PUMP key after the READY light turns on to start the pump.

5 A1-3 Manually tarting the Unit If you have not programmed your unit to start automatically, use this procedure to manually start your unit. If you have programmed your unit to start automatically, you will still need to start the unit manually when you need to start the unit before it is time for automatic startup to occur you need to start the unit on a day for which the clock is turned off you need to start the unit because the clock was not turned on 1. If the power is off, press the POWER switch to turn the unit on. 2. If the auto-energize heaters feature is not on, press the HEATER key. The HEATER light will turn on and unit will begin to heat. 3. Prepare each gun in your system for operation as follows: Air-operated guns: turn on the operating air. Electric guns: turn on the gun driver. Hand-operated guns: unlock the trigger. 4. Piston pump units only: turn on the pump air pressure and adjust it to the setting that works best for your system. 5. Check the temperature setting for each heated zone. 6. Piston pump units only: If the auto-energize pump feature is not on, press the PUMP key after the READY light turns on. The PUMP light will turn on and the pump will start. 7. Gear pump units only: When the READY light turns on, press the PUMP key. The PUMP light will turn on and the pump will start. The system is ready for routine operation.

6 A1-4 Checking the Adhesive Level and Filling the Tank Use this procedure to check the adhesive level and to refill the tank if necessary. WARNING: Risk of personal injury. When the tank lid is opened, vapors may be released. Vent the application area or wear a respirator for protection from vapors. CAUTION: Risk of equipment damage. Exposing melted adhesive to air can accelerate the curing process, causing char. Refer to General Hot Melt Material Processing Instructions at the beginning of this manual for adhesive material handling guidelines. 1. Open the tank lid and check the adhesive level. 2. Refill the tank before the adhesive level drops below 50%. Use a metal or plastic scoop to add unmelted adhesive to within 25 mm (1 in.) of the top of the tank. 50% 25 mm (1 in.) Fig. A 1-2 Filling the Tank 1. Refill level 2. Tank filling 3. Tank-full level 3. Close the lid immediately after filling.

7 A1-5 Placing the Unit In tandby Mode To place the unit in standby mode, press the TANDBY key. The TANDBY light will turn on and the READY light will turn off. The pump will stop and the zone temperatures will drop. The heaters will maintain heated zones at their standby temperature setpoints. You can also program the unit to automatically enter the standby mode at a specified time. Refer to Programming CLOCK Controls in the Installation section. Taking the Unit Out of tandby Mode To remove the unit from standby mode, press the TANDBY key. The TANDBY light will turn off and the unit will heat each active zone to its operating temperature setpoint. You can also program the unit to automatically exit the standby mode at a specified time. Refer to Programming CLOCK Controls in the Installation section.

8 A1-6 Automatically hutting Down the Unit If the CLOCK light is on and the system is programmed to turn the heaters off automatically, the system will shut itself down. Manually hutting Down the Unit Use this procedure to shut the unit down manually at any time. 1. Press the PUMP key. The PUMP light will turn off and the pump will stop. 2. Place a container under all guns and trigger the guns to relieve system pressure. 3. hut down all guns as follows: Air-operated guns: turn off the operating air. Electric guns: turn off the gun driver. Hand-operated guns: lock the trigger. 4. Piston pump units only: turn off the pump air pressure. 5. Press the HEATER key. The HEATER light will turn off. 3. ystem Monitoring Procedures This part of the section contains the following system monitoring procedures: Checking the zone temperatures Checking the programmed settings Checking the fault log Running a system test ee Figure A 1-1 for the Vista operator panel keys and displays.

9 A1-7 Checking the Zone Temperatures The Vista control system allows you to check the temperatures of all zones in sequence (to scan) or to continuously monitor the temperature of a single zone (to monitor). When the unit is turned on, the MONITOR/CAN light turns on and the unit scans through the heated zones and displays the temperature of each zone sequentially. Press the MONITOR/CAN key to take the unit out of the scan mode. The MONITOR/CAN light will stay on, but the unit will monitor only the selected zone. NOTE: electing a setting in the ystem etup area will take the unit out of the monitor/scan mode and the MONITOR/CAN light will turn off. Press the MONITOR/CAN key to return the system to monitor/scan mode. If no action is taken within two minutes, the control system will automatically return to the monitor/scan mode. Checking the Programmed YTEM ETTING Features If you did not keep a record of the programmed settings, use this procedure to check the settings. 1. Press the Move Up and Move Down keys until the YTEM ETTING light turns on. 2. Press the Up key below the elector display until the feature number for the feature you want to check appears in the display. Refer to the YTEM ETTING Features Table in the Installation section for a description of each feature number. 3. Check the Multipurpose display to determine the setting for the feature. 4. To change the setting for the feature, refer to Programming YTEM ETTING Controls in the Installation section of this manual.

10 A1-8 Checking the Warning or Fault Log Use this procedure to check the warning or fault log. These logs list the causes of the three most recent warnings or faults. The actual temperature display shows the length of time the heaters have been on when the warning/fault occured. 1. Press the Move Up and Move Down keys until the YTEM ETTING light turns on. 2. Press the Up key below the elector display until the feature number of the warning or fault you want to check appears in the display. Refer to Table A 1-1 or A 1-2. NOTE: Press the right arrow key to scroll through the features in increments of 10. Table A 1-1 Warning Log Feature Numbers Feature No. Warning Displayed 35 The zone number and warning code for the most recent warning will be displayed in the Multipurpose display. 36 The zone number and warning code for the second most recent warning will be displayed in the Multipurpose display. 37 The zone number and warning code for the third most recent warning will be displayed in the Multipurpose display. Feature No. Table A 1-2 Fault Log Feature Numbers Fault Displayed 27 The zone number and fault code for the most recent fault will be displayed in the Multipurpose display. 28 The zone number and fault code for the second most recent fault will be displayed in the Multipurpose display. 29 The zone number and fault code for the third most recent fault will be displayed in the Multipurpose display.

11 A Check the Multipurpose display to determine the warning or fault code of the warning or fault currently displayed; then refer to Table A 1-3 and either Table A 1-4 or A 1-5 to determine the meaning of the warning or fault code. Multipurpose Display zone number -- code Actual Temperature Display heaters on time when fault/warning occurred. For example, 3-2 in the multipurpose display would indicate that hose 2 has an open RTD and the number in the temperataure display would indicate how long the heaters had been on when the warning or fault occurred. Table A 1-3 Zone Codes for Warning and Fault Logs # Zone # Zone # Zone 0 Tank 5 Hose 4 10 Gun 3 1 Grid 6 Hose 5 11 Gun 4 2 Hose 1 7 Hose 6 12 Gun 5 3 Hose 2 8 Gun 1 13 Gun 6 4 Hose 3 9 Gun 2 Table A 1-4 Meaning of Warning Codes Warning Code Meaning of Warning Code 0 No fault has occurred. 1 Not used. 2 An RTD is open. 3 An RTD is shorted. 4 A zone temperature is out of band. 5 Not used. 6 Not used. Table A 1-5 Meaning of Fault Codes Fault Code Meaning of Fault Code 0 No fault has occurred. 1 A zone is below the setpoint temperature. 2 An RTD is open. 3 An RTD is shorted. 4 A zone is overtemperature. 5 The control board is bad. 6 A brownout has occurred.

12 A1-10 Checking the Warning or Fault Log (contd) NOTE: Refer to the following sections of this manual for additional troubleshooting and repair information: The Hydraulics section contains troubleshooting and repair procedures for the pump and manifold assemblies. The Control section contains troubleshooting and repair procedures for system board and heating zone problems. 4. To clear the warning log, pressing the CLEAR FAULT key. Running a ystem Test After you have corrected a problem that caused the unit to register a fault, press the CLEAR FAULT key to run a system test. During the five-second test, the following occur: All lights on the operator panel turn on. Information in the Displays area changes. Problem corrected? Yes No Result: The FAULT light turns off when the test is complete and the system will enter the monitor/scan mode. The FAULT light stays on when the test is complete. Refer to Checking the Fault Log in this section. 4. Operating Procedures for Optional Features If your unit has special features or options, such as a low-level indicator or an input/output board, refer to the Options section of this manual for any operating procedures.

13 A Procedure for Changing Adhesives Contact your material supplier about the compatibility of the old and new materials. If the old and new adhesives are compatible, add the new adhesive to the tank. If the new adhesive is not compatible with the old one, ask your supplier for an acceptable flushing material to thoroughly clean the system. Use this procedure to clean the system before changing to an adhesive that is incompatible with the old one. 1. Ensure that the unit is at operating temperature. WARNING: ystem or material pressurized. Relieve system pressure. Failure to observe may result in serious burns. 2. Relieve system pressure. Refer to Relieving ystem Pressure in the Maintenance section of this manual. 3. Drain the unit by pumping as much adhesive from the tank as possible using one of the following methods. Method of Draining Gun Manifold Hose Description Place a suitable container under each gun nozzle. Remove each nozzle from its gun. Turn on the pump by pressing the PUMP key and pump the adhesive out through the gun. Pump the adhesive out through the manifold. Refer to the filter flushing procedure for your filter in the Maintenance section of this manual. Disconnect a hose from its gun. Replace the dust cover, which was removed during installation, on the hose electrical receptacle. Position the hose over a suitable waste container and secure it. TurnthepumponbypressingthePUMP key and pump the adhesive out through the hose.

14 A Procedure for Changing Adhesives (contd) Fig. A 1-3 Methods of Draining the Unit 1. Draining through the gun 2. Draining through the manifold (typical manifold shown) 3. Draining through the hose 4. If you have not already done so, disconnect each hose in the system from its gun. 5. Clean each automatic gun and hand-operated gun as needed. Refer to the gun manual for information on gun disassembly, cleaning, and rebuilding. 6. Flush the system with the flushing material recommended by your adhesive supplier. Refer to the procedure To Flush the ystem with a Flushing Material or the procedure To Flush the ystem with Type R Fluid in the Maintenance section of this manual.

15 A Check the Material afety Data heet (MD) for the recommended operating temperature of the new adhesive. If the temperature is different from the old adhesive, reprogram your unit s temperature settings. Refer to Table A 1-6. Table A 1-6 Temperature Programming Procedures Type of Temperature etting Programming Procedure Overtemperature setpoint ETPOINT or TANDBY temperature setpoint Refer to Programming YTEM ETTING Controls in the Installation section of this manual. Refer to Programming TEMPERATURE Controls in the Installation section of this manual. The unit is ready for routine operation. Refer to Operating Procedures in this section.

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