Power unit: Time slice overflow

What does F30802 mean?

A time slice overflow has occurred within the power unit, indicating that a critical internal process exceeded its allocated computational time. This can lead to system instability, incorrect operation, or a complete shutdown. The fault requires immediate attention to prevent further operational issues.

Complete Troubleshooting Guide

1. 1

   Perform a complete POWER ON (power off/on) cycle for all components connected to or part of the drive system.

2. 2

   Upgrade the power unit's firmware to a later version, as this may contain optimizations or bug fixes related to timing and resource allocation.

3. 3

   If the issue persists, contact the Siemens Hotline for expert diagnosis and potential software/hardware evaluation.