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4/00 UDC 3300 Controller Product Manual 243
Section 9 – Troubleshooting / Service
9.1 Overview
Introduction
Instrument performance can be adversely affected by installation and
application problems as well as hardware problems. We recommend that
you investigate the problems in the following order:
• installation related problems
• application related problems
• hardware and software related problems
and use the information presented in this section to solve them. If a
replacement of any part is required, follow the procedures listed under
“Parts Replacement Procedures.”
What’s in this section?
The following topics are covered in this section.
Topic See Page
9.1 Overview 243
9.2 Troubleshooting Aids
• Overall Error Messages
• Controller Failure Symptoms
• Customer Support
• Determining the Software Version Number
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9.3 Power-up Tests 247
9.4 Status Tests 248
9.5 Background Tests 250
9.6 Controller Failure Symptoms 252
9.7 Troubleshooting Procedures
• Power Failure
• Current Proportional Output Failure
• Position Proportional Output Failure
• Time Proportional Output Failure
• Time/Current - Current/Time Proportional Output Failure
• Alarm Relay Output Failure
• Keyboard Failure
• Communications Failure
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9.8 Parts Replacement Procedures
• How to remove the chassis
• How to replace the display/keyboard assembly
• How to remove printed wiring boards from the chassis
• Printed wiring board identification
• 2nd input board replacement procedure
• Power input board replacement procedure
• Digital input board replacement procedure
• Aux. output/commun. board replacement procedure
• MCU/output board replacement procedure
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9.9 Maintenance 270