What causes an EPF1 [External Error] fault on an ATV340 and how can I fix it?
Resolution:
1. Check External Error Assignment
- Navigate to the Error/Warning handling menu.
- Review the EtF [External Error Assign] parameter.
- If it is set to anything other than “No: not assigned” (default), inspect the assigned input or control bit to determine what is triggering the fault.
2. If EtF is set to “No: not assigned”
The fault is likely due to a communication issue. Common causes include:
- Duplicate IP address on the network
- Incorrect IP address, subnet mask, or gateway configuration
- Fast Device Replacement (FDR) error
- Incorrect drive configuration when using ODVA assemblies 20/70 or 21/71
3. Additional Guidance
For more details on Ethernet-related troubleshooting, refer to the official manual:
https://www.se.com/ww/en/download/document/NVE61653/
If this article does not answer your question, check out our FAQ database that has answers to more commonly asked questions:
Frequently Asked Questions - Schneider Electric (se.com)
If this FAQ did not solve your issue, you can call us at 1-888-778-2733 Option 2 and then 4 or e-mail us atdrive.products.support@se.comto create a case with our Technical Support Team.
If you are not located in North America, please contact your local Customer Care Center for assistance:
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Released for: Schneider Electric Canada
