Hardy HI 4050, User Manual

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136 Chapter 8
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Do not disconnect any electrical plug, connector or terminal unless an identification tag
is present or one is attached. Always note where the connector or plug was attached to
the electrical component or wiring harness.
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Always install complete hardware groups (Screws, Washers, Lock Washers, Spacers,
Etc.) back to the original point of removal.
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Always replace broken or damaged modules or hardware immediately!
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Always check to be sure that no loose parts are sitting on printed circuit boards or
electrical connectors or wires when disassembling or reassembling.
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Always protect printed circuit boards from electrostatic discharge (ESD). Always use
approved ESD wrist straps and anti-static pads.
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Always perform a final inspection after completing any reassembly to be sure that all
fasteners are tight, all connectors are secure and there are no loose parts on any of the
printed circuit boards in the Weight Controller.
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Always follow proper safety procedures when working on or around the Weight
Controller.
This chapter describes several tests that can shorten the time for troubleshooting. Most
problems require the use of two or more tests to determine the cause.
If a problem is isolated to a load cell, it may not mean the load cell is the damaged
component. Mechanical imbalances and system piping stress (lack of piping vibration
isolators, cables draped over pipes etc.) can make a load cell seem to be the problem.
If you are in doubt as to how to resolve a problem or if you need assistance, look for Hardy
Process Solutions Web-tech at http://www.hardysolutions.com. Web-tech is updated often
and is available 365 days a year 24/7. It contains several frequently asked questions to aid
you in troubleshooting, and it provides a form for requesting additional information and
answers to questions, with no waiting on hold.
Customer Service is available from 6:30AM to 5:30 PM Pacific Standard Time. For
direct factory support call Hardy Process Solutions Customer Service at:
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Factory Technical Support in the US and Canada:1-800-821-5831, Ext.9550.
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Technical Support outside the US and Canada:1-858-278-2900 Ext.9550.
Error Messages
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A/D Failure Error! - Internal Electronics Error, Retry.
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A/D Convert Error! - Load Cells input out of range.
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Motion Error! - Check Motion Tolerance Settings and Retry
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Trad Cal Error! - Error occurred during calibration, re-calibrate.
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C2 Cal Error! - Error occurred during calibration, re-calibrate.
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Too Lo Error! - Verify that the load cell signal level is 0-15 mV. Verify that there is
enough weight on the scale. Perform Span than go back and Zero.
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Too Hi Error! - Verify that the load cell signal level is 0-15mV. Verify that there is
enough weight on the scale. Perform Span than go back and Zero.
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No C2 Sensor! - Instrument did not detect a C2 Load Sensor