What does Option Card Fault (CN5-A) mean on YASKAWA SI-EP3?
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Steven FreemanSep 12, 2025
If your YASKAWA Controller reports an Option Card Fault (CN5-A), it means the option connected to option port CN5-A was changed during run. To fix this, de-energize the drive and plug the option into the drive according to the Installation Procedure.
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guerrerolucasSep 14, 2025
What causes Option Fault (CN5-C) on YASKAWA Controller?
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kelleyjustinSep 15, 2025
If your YASKAWA Controller displays an Option Fault (CN5-C), the option card installed into port CN5-C might be incompatible with the drive. Connect the option to the correct option port. AI-A3, DI-A3, and communication options are not supported by option port CN5-C.
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Richard RuizSep 16, 2025
What does Option Fault (CN5-B) mean on YASKAWA SI-EP3?
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Thomas LopezSep 17, 2025
If your YASKAWA Controller shows an Option Fault (CN5-B), it means an option of the same type is already installed in option port CN5-A, CN5-B, or CN5-C. To solve this, connect the option to the correct option port.
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Lisa AllenNov 18, 2025
How to fix Option Communication Error on a YASKAWA Controller?
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Alexis EstradaNov 18, 2025
If the YASKAWA Controller displays an Option Communication Error, it could be due to several reasons:
* No signal received from the PLC: Check for faulty wiring and correct any wiring problems.
* Short circuit or communications disconnection: Inspect disconnected cables and short circuits, repairing as necessary.
* Data error from electrical interference: Counteract noise in the control circuit, main circuit, and ground wiring. If a magnetic contactor is causing noise, install a surge absorber to the contactor coil. Use only recommended or shielded cables, grounding the shield on the controller or drive input power side. Keep communication wiring separate from drive power lines and consider installing an EMC noise filter to the drive power supply input. Also, address any noise in th...