E10.01 fault in the Inovance IS580 drive indicates a speed sensor fault. This means the drive is either not receiving a valid signal from the motor's encoder (or other speed feedback device), or the signal is out of expected range.

Troubleshooting Steps:

• Inspect encoder cable: Look for damage, disconnections, or signs of wear.
• Check encoder signal with oscilloscope (if available)Look for clean A/B/Z channels.
• Set A1-05=2s and start speed sensor self check