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Preface
■ Introduction
The MD520IO1 card is an I/O expansion card applies to AC drives. The card supports
three DI circuits, one AO circuit, one RO circuit, and one isolated RS‑485 circuit.
This guide describes the technical specifications, dimensions, installation, wiring, and
troubleshooting of the MD520IO1 expansion card.
■ Revision history
Date Version Description
April 2023 A00 First release
■ Document acquisition
This guide is not delivered along with the product. You can download the PDF version
by the following way:
Log in to Inovance's website (
www.inovance.com
), choose Support > Download,
search by keyword, and then download the PDF file.
■ Warranty
If your product becomes defective under normal use conditions, we will offer
guaranteed repair services within the warranty period. You will be charged for any
repair work after the warranty period expires.
The warranty does not cover any damage caused by:
●The user does not perform operations in compliance with the user manual of the
product.
●The product is damaged due to fire, flood, and abnormal voltage.
●The user uses the product for abnormal functions.
●The user uses the product outside the specified specification range.
●The product is damaged by force majeure, such as natural disasters, earthquakes,
or lightning strikes.
The maintenance fee is charged according to the latest Price List of Inovance. If
otherwise agreed upon, the agreed terms and conditions shall prevail.
