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Of course, other sections of the extrusion line also influence the quality of the extruded product. This section does not provide solutions to problems originating with other equipment on the extrusion line. Additional troubleshooting help can be found in the manufacturer’s manuals included with this User Guide. UGE058/0803 CTS Saw TROUBLESHOOTING 6-3 ELECTRICAL PROBLEMS Symptom Saw will not start Saw blade runs backwards Look in this section when you have problems such as lights on the control that are working improperly, buttons that do not execute the function properly, and when information input is not executed properly. Possible cause The E-stop button is depressed. Motor overload tripped Disconnect in the off position. AC Power is phased incorrectly for your plant Solution Make sure the E-stop is extended. Reset motor overload. Turn disconnect to the on position. Change the wire on the plug to match your plants AC phasing. 6-4 TROUBLESHOOTING CTS Saw UGE058/0803 PRODUCT QUALITY PROBLEMS Symptom Possible cause Solution Cut not square Product guides not aligned square to the blade face Re-align the product guides. Insure that the rear guide is square with the saw blade and tighten. Adjust the front guide accordingly allowing enough clearance for smooth product passage. Crack or fractures in cut surfaces Blade speed too fast Adjust speed control for blade feed into part (slower) Incorrect blade design Investigate blade choice for the application. Incorrect cooling of extrudate Improve the molecular structure with variation of cooling time or temperature. General poor cut quality Incorrect blade design Investigate blade choice for the application. Blade running backwards Check motor rotation Check blade installation Product melting at cut Blade speed too slow Adjust speed control for blade feed into part (faster) Incorrect blade design Investigate blade choice for the application. UGE058/0803 CTS Saw TROUBLESHOOTING 6-5 PRODUCT QUALITY PROBLEMS CONTINUED Symptom Possible cause Solution Incorrect cut length Encoder or input device problem Check encode or input device Puller problem Check puller for drive consistencies or any belt to product slippage. Counter problem Check cut length counter Saw clamps not holding Check rubber saw clamps for wear and replace as necessary Table motion inconsistent Roller ways dirty Clean roller ways Rodless cylinder problem Check and clean rodless cylinder Solenoid problem Check table actuation solenoid for proper operation Low air pressure Check main system regulator for incoming air pressure settings 6-6 TROUBLESHOOTING CTS Saw UGE058/0803 The servo amplifier is equipped with a digital readout that can be seen through the viewing window on the electrical CHECKING THE enclosure. This display shows amplifier status and error messages. Refer to the supplier's documentation included with SERVO this User Guide. AMPLIFIER NOTE:Make sure you look for servo amplifier messages before you shut off the power. UGE058/0803 CTS Saw TROUBLESHOOTING 6-7 When the encoder is working properly, the encoder LEDs on CHECKING THE the control panel light or flicker as the encoder wheel moves and generates signals. If the LEDs do not light when the ENCODER encoder wheel moves: 1 Check all connections. 2 Check the encoder cable for damage. If necessary, replace. 3 Check the connector that attaches the cable to the encoder. Internal wiring may be shorted out if this connector is not handled properly. 4 Check the encoder itself. There should be no play in the shaft. If all else fails, contact Conair Customer Service. See Appendix page A-1. WARNING: Delicate equipment The encoder is a delicate piece of equipment. Any rough handling can damage fragile parts. 5 6-8 TROUBLESHOOTING CTS Saw UGE058/0803 Conair has made the largest investment in customer support in the plastics industry. Our service experts are available to help with any problem you might have installing and operating your equipment. Your Conair sales representative also can help analyze the nature of your problem, assuring that it did not result from misapplication or improper use. To contact Customer Service personnel, call: From outside the United States, call: 814-437-6861 You can commission Conair service personnel to provide on- site service by contacting the Customer Service Department. Standard rates include an on-site hourly rate, with a one-day minimum plus expenses. If you do have a problem, please complete thefollowing checklist before calling Conair: . Make sure you have all model, serial and parts list numbers for your particular equipment. Service personnel will need this information to assist you. . Make sure power is supplied to the equipment. . Make sure that all connectors and wires within and between the saw and related components have been installed correctly. . Check the troubleshooting guide of this manual for a solution. . Thoroughly examine the instruction manual(s) for associated equipment, especially contr...
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