Smart Parameter Access protocol

The Smart Parameter Access protocol (SPA) enables access to all drive parameters of the inverter via the AS-Interface master.

The inverter supports the following acyclic SPA services of the SPA protocol:

• SPA Data Exchange Request/Response (recommended)
• SPA Write Request/Response
• SPA Read Request/Response

The SPA Request message and the SPA Response message of the SPA protocol have the same structure.

• SPA Request message
• SPA Response message
• SPA Error Response message
• SPA service errors in SPA Error Response messages