The manual describes installation, wiring, and functional specifications of the Inovance MD32IO I/O expansion card for MD320 series inverters.
This document provides an overview of the MD32IO I/O expansion card, which is designed to work with the MD320 series vector frequency converters. It adds five digital inputs, one analog voltage input, a relay output, a digital output, and an analog output, and includes RS‑485 communication capability.
The manual details mechanical installation, terminal layout, wiring definitions, and the functional description of each terminal, including power supplies, analog and digital I/O specifications, and relay contact ratings. This manual is written in Chinese.
| +10V Output Current | 10mA |
|---|---|
| +24V Output Current | 200mA |
| Analog Input Voltage Range | 0~10V |
| Analog Input Current Range | 4~20mA |
| Analog Input Impedance (Voltage) | 100kΩ |
| Analog Input Impedance (Current) | 500Ω |
| Digital Input Count | 5 |
| Digital Output Voltage Range | 0~24V |
| Digital Output Current Range | 0~50mA |
| Relay Contact Rating (AC) | 250V AC, 3A |
| Relay Contact Rating (DC) | 30V DC, 1A |
It supports RS‑485 communication.
The card provides five digital inputs.
The analog input can accept 0‑10 V or 4‑20 mA.