Parker Compumotor AT6200 Installation Manual

Parker Compumotor AT6200 Installation Manual Manual pdf 32 page image

Chapter 2. Troubleshooting 2 5Motion Architect's Panel ModuleAs an alternative to the test program noted above, you can use the Panel Module in MotionArchitect. The Panel Module allows you to set up displays for the purpose of testing varioussystem I/O and operating parameters.Technical SupportIf you cannot solve your system problems using this documentation, contact your localAutomation Technology Center (ATC) or distributor for assistance. If you need to talk to ourin-house application engineers, please contact us at the phone/FAX/BBS numbers listed on theinside cover of this manual. (The phone numbers are also provided when you issue the HELPcommand to the AT6n00.) NOTE: The BBS contains the latest software upgrades and late-breaking product documentation.Common Problems & SolutionsN O T ESome software-related causes are provided because it is sometimesdifficult to identify a problem as either hardware or software related.Problem C a u s e SolutionCommunication errors. 1. Communication program looking forcard at wrong address.2. Address conflict.3. AT6n00 card not properly seated.1. Select correct address for communication program.2. SeeAddress Selection section below.3. Seat board properly in slot. Apply pressure directly over area withgold card edge fingers.Computer will not bootwith AT6n00 installed. 1. Interrupt conflict.2. See problem:Communication Errors.1.a. Turn interrupt DIP switches OFF.1.b. SeeInterrupt Selection section below.Direction is reversed. 1. Direction connections on AUX boardreversed.2. Phase of step motor reversed.1. Switch DIR+ with DIR- connection to drive.2. Switch PHA+ with PHA- connection from drive to motor.Distance is incorrect asprogrammed. 1. Incorrect resolution setting.2. Pulse width too narrow.1.a. Set the resolution on the drive (usually set with DIP switches) tomatch the AT6n00's DRES command setting (default DRES setting is25,000 steps/rev).1.b. Match the AT6n00's ERES command setting (default ERES setting is4,000 counts/rev) to match the post-quadrature resolution of the encoder.Resolution values for Compumotor encoders:E Series: 1000-line (4000 counts/rev post quad)OS motor with -HJ encoder (OSxxx-xxx-HJ): 512 linesOS motor with -RE encoder (OSxxx-xxx-RE): 1000 linesOS motor with -RC encoder (OSxxx-xxx-RC): 1000 linesRS motor with -EC encoder (RSxxx-xxx-EC): 1000 linesOEM Series motors (stepper):83 size: 1000 lines (4000 counts/rev post quad)57 size: 512 lines (2048 counts/rev post quad)3. Set pulse width to drive specifications using the PULSE command.(default pulse width setting is 0.3 μsec).Encoder counts missing. 1. Improper wiring.2. Encoder slipping.3. Encoder too hot.4. Electrical noise.5. Encoder frequency too high.1. Check wiring.2. Check and tighten encoder coupling.3. Reduce encoder temperature with heatsink, thermal insulator, etc.4a. Shield wiring.4b. Use encoder with differential outputs.5. Peak encoder frequency must be below 1.6MHz post-quadrature. Peakfrequency must account for velocity ripple.Erratic operation. 1. Electrical Noise.2. Improper shielding.3. Improper wiring.1. Reduce electrical noise or move AT6n00 away from noise source.2. Refer to the Electrical Noise portion of the Technical Referencesection in the Compumotor/Digiplan catalog and Appendix A.3. Check wiring for opens, shorts, & mis-wired connections.Artisan Scientific - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisan-scientific.com