Inovance L010.3 fault code meaning

Series: MD520

AC drive pre-overload

AC drive

Meaning: A pre-overload condition is detected when the AC drive overload ratio reaches 80%.

Possible causes

• Load too large or motor locked rotor
• Carrier frequency setting too high
• Low DC bus voltage during high-speed operation under heavy load
• Prolonged operation below 5Hz causes low-frequency derating
• Output ground fault
• Output phase loss
• Motor parameter error
• Starting the motor while it is already rotating
• Encoder phase sequence error
• Incorrect AC drive model setting
• Selected AC drive capacity is too small
• Pre-overload is reported when the AC drive load ratio reaches 80%.

Source: MD520 Commissioning Manual - Chinese p. 88-89