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| Trouble Shooting |
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| SENC 150 |
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If you experience difficulties with your installation, do the following to determine the problem.
Checking the Readout
Difficulties on more than one axis are usually associated with the readout. Follow these steps to determine if your difficulties are associated with the readout:
•Insure that the linear encoder connectors are correctly seated.
•Swap linear encoder cables at the readout to see if the problem is still shown in the same display.
•If the problem remains in the same display, the readout is in error.
•If the problem follows the connection change, the linear encoder may be in error.
If the Readout is at fault, refer to “What to do” to arrange for the parts necessary to repair your system. If a linear encoder appears to be at fault, proceed with “Checking the Linear Encoders”.
Checking the Linear Encoders
Problems on a single axis are usually associated with the linear encoder or its installation. Difficulties can be caused by improper installation, loose or misaligned bracketry, or a damaged or inoperable encoder.
Follow these steps to determine the cause of your system difficulties:
•Confirm that your bracketry and installation does not interfere with other machine structures through the entire length of the linear encoder travel.
•Check for loose fasteners. If you find loose fasteners, first confirm that the linear encoder is installed to the tolerances specified and then retighten the fasteners as required.
•Confirm that the linear encoder is installed to the required tolerances by checking the alignment tolerances specified on Page 4. If the installation does not meet the tolerances, reinstall the encoder according to the “Installation Procedure”.
•Perform a Repeatability Test as described on Page 13. If the
linear encoder is installed to the required tolerances, the bracketry and encoder have been checked for interferences and loose fasteners, and the encoder fails the repeatability test, the encoder is likely at fault.
Do not attempt to repair the reading head or scale assembly. The SENC 150 is field serviceable by assembly replacement only. Attempts to repair the encoder can permanently damage it and void the warranty.
What to do
If an
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10/22/2009 10:00:47 AM 