What are the most common EST4 trouble codes displayed during initial commissioning?
Common EST4 trouble codes during initial commissioning typically involve database synchronization, module placement, and network connectivity. Key codes include:
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0651 ($DatabaseSupervision): Indicates a corrupt database on the 4-CPU (Page 207) [1].
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0653 ($DownloadInProgress): Triggered when a 4-CU database download is incomplete or currently in progress (Page 207) [1].
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0609 ($Configuration Supervision): Occurs when a module is installed in the wrong rail slot (Page 204) [1].
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0654 ($UnexpectedModule): An undefined module has been detected by the system (Page 207) [1].
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0660 / 0661 ($eth0 / $eth1): Indicates a network link failure where a configured SFP is not connected to the node card (Page 208) [1].
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0648 ($GroundFault): A wiring fault where a conductor has continuity to ground (Page 207) [1].
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0665 ($PowerSupplyFault): Often caused by a loose or missing cable between the power supply and the CPU (Page 209) [1].