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ErrorLib — Industrial Fault Code Library

Disclaimer: ErrorLib is an independent technical reference tool. While we aim for accuracy, always verify with the manufacturer’s official service manuals before performing maintenance on industrial equipment. ErrorLib is not affiliated with the brands listed.

58

Login Failed (CAN)

Fronius · Perfect Charging

What does 58 mean?

The battery charger failed to successfully log in or establish a secure handshake with the battery via CAN communication. This can be due to authentication issues, protocol mismatches, or security settings preventing communication.

Common Causes

  • Incorrect authentication keys, passwords, or parameters exchanged between the charger and the battery's BMS.
  • A mismatch in communication protocols, software versions, or security settings that prevents successful negotiation.
  • Security settings or access controls on either device are preventing the establishment of the communication link.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Verify any security, authentication, or login parameters configured in both the charger and the battery's BMS systems.

  2. 2

    Ensure that compatible firmware versions are running on both the charger and the battery, particularly concerning communication protocols.

  3. 3

    Consult the respective manuals for specific login procedures, security configurations, or protocols required for communication.

Browse all codes in this manual (61)
Verified technical data. Last updated: April 2026

Related Faults

101Gateway CAN Connect Timeout102Gateway No Back-end Connection103Gateway Charger/Registration Mismatch
Source: Fronius Perfect Charging
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