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This guide is intended for systems that were sold and configured by Aerotech. This is denoted by the TAS or Test As System configuration option on your Sales Order. In some situations, however, this guide will also apply to any other system |
Problem
The system is experiencing Position Errors and/or Over Current faults when you attempt to connect to you new system that was tested and tuned at the factory.
Solution
Position Error and Over Current faults are common for new systems to experience. They are the two most common errors customers receive primarily because of how customers receive the errors.
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With that in mind, here are some situations and things to keep an eye out for.......
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Before starting up your system and attempting to move, you should ensure that all external devices are safe from collision. You should also ensure that all shipping clamps have been removed from the system. Aerotech uses Red aluminum brackets for our shipping clamps. Any system that uses direct-drive motors should be able to move freely by hand with very little effort. Direct-drive motors are motors that do not use mechanics (ex. ballscrews, worm gears, etc.) to move the system. Solution:
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Common causes of Position Error faults are improper parameter or hardware configuration. Parameters: If the system was purchased and tested as a system by Aerotech (TAS, Test As System), then Aerotech would have provided a parameter file (A3200: *.prma, Ensemble: *.prme, or Soloist: *.prms) or a Machine Controller Definition file (Automation1: *.mcd). This The parameter file or MCD contains all of the proper motor and encoder setup for your system. Ensure that you are using the correct parameter file/MCD for your system. For non-configured systems you will need to refer to the Getting Started section of the Help file for configuring parameters; for Automation1, instead refer to the Machine Setup documentation.
Hardware: As far as hardware is concerned, if this was a TAS configured system you should have received a System Interconnect drawing. This drawing details how you should connect your system. What cables to use, where to connect them and what types of amplifiers to connect them to. If you have a system that has two identical(or similar) stages in an XY configuration setup, verify that you are connecting the axes to the correct controllers and that you are connecting them in the right order. It is very easy to get the top and bottom axes swapped by accident. Solution:
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If you cannot determine the cause of your Position Error or Over Current fault submit a support ticket with our Global Technical Support Team. If possible, please provide a Digital Scope plot from when you receive the fault. We recommend gather the following signals for each axis displaying the problem: Position (Command, Feedback, Error), Velocity (Command, Feedback, Error), & Current (Command, Feedback, Error) You can find instructions for gathering data here: Data Collection 101 Global Technical Support: service.aerotech.com |
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