Zeror.ai Error Codes ABB 71A2

ABB 71A2

Brand: ABBModel: ACS880Error code: 71A2

What the Fault Means

Fault: Mechanical brake closing failed

Likely causes

  • Mechanical brake control fault. Activated eg. if brake acknowledgement is not as expected during brake closing.

Solution and Safe First Checks

  1. Check mechanical brake connection. Check mechanical brake settings in parameter group 44 Mechanical brake control. Check that acknowledgement signal matches actual status of brake. Mechanical brake control fault. Activated eg. if brake acknowledgement is not as expected during brake opening. Check m

Safety: do not work inside the panel without isolating the power; if unsure, consult a qualified technician.

Related ABB error codes

Source: the Zeror.ai industrial fault database and ABB technical documentation. This page is for information; on critical systems follow the manufacturer's manual and authorised service.