Chapter 9 Troubleshooting Table of Contents 9.1 Inspection and Troubleshooting ................................................................. 9-3 9.1.1 Basic Inspection ....................................................................................... 9-3 9.1.3 Troubleshooting Procedure ......................................................................... 9-4 9.1.2 Clearing the Error State ............................................................................. 9-3 9.1.4 Viewing Error Logs ....................................................................................
9-5 9.2 Error Codes and Indicators ......................................................................... 9-6 9.2.1. AHxxEMC-5A ............................................................................................ 9-7 9.2.2. Analog I/O Modules and Temperature Measurement Modules ........................ 9-27 9.2.3. AH02HC-5A/AH04HC-5A .......................................................................... 9-29 9.2.4. AH05PM-5A/AH10PM-5A/AH15PM-5A ......................................................... 9-30 9.2.5. AH20MC-5A ........................................................................................... 9-32 9.2.6.
AH10EN-5A/AH15EN-5A .......................................................................... 9-33 9.2.7. AH10SCM-5A/AH15SCM-5A ...................................................................... 9-33 9.2.8. AH10DNET-5A ........................................................................................ 9-33 9.2.9. AH10PFBM-5A ........................................................................................ 9-34 9.2.10. AH10PFBS-5A ......................................................................................... 9-34 9.2.11. AH10COPM-5A .......................................................................................
9-35 9.3 Troubleshooting for CPU ........................................................................... 9-36 9.3.1. ERROR Indicator ON ................................................................................ 9-36 9.3.2. ERROR Indicator Blinking ......................................................................... 9-38 9.3.4. BUS FAULT Indicator Blinking ................................................................... 9-52 9.3.3. BUS FAULT Indicator ON .......................................................................... 9-51 9.3.5. Others ...................................................................................................
9-53 9.4 Troubleshooting for I/O Modules ............................................................. 9-65 9.4.1. Analog I/O Modules and Temperature Measurement Modules ........................ 9-65 9.4.2. AH02HC-5A/AH04HC-5A .......................................................................... 9-68 9.4.3. AH05PM-5A/AH10PM-5A/AH15PM-5A ......................................................... 9-70 9.4.4. AH20MC-5A ........................................................................................... 9-72 9.4.5. AH10EN-5A/AH15EN-5A .......................................................................... 9-73 9.4.6.
AH10SCM-5A/AH15SCM-5A ...................................................................... 9-74 9.4.7. AH10DNET-5A ........................................................................................ 9-74 9.4.8. AH10PFBM-5A ........................................................................................ 9-75 9-1 9