G4IAC5

The Opto 22 G4IAC5 is a digital AC input module from the G4 I/O family. It is designed to detect AC or DC voltage levels, providing up to 4000 volts of optical isolation between field inputs and the logic output. This module operates within a 90-140 VAC/VDC input voltage range and requires a 5 VDC logic supply.

Key electrical specifications include a typical input current of 5 mA at maximum line, a 20ms turn-on time, and a 20ms turn-off time. The module offers a nominal output voltage supply of 5 VDC with a range of 4.5-6 VDC and provides a sinking output current of 50 mA. It also features a typical output voltage drop of 0.4 V at 50 mA and a low output leakage of 100 µA at 30 VDC.

Designed for reliability, the G4IAC5 includes built-in filtering for transient suppression and noise rejection, ensuring clean switching. It has an operating temperature range of -30 °C to 70 °C and a storage temperature range of -30 °C to 85 °C. The module features a yellow color, a status LED, and a hold-down screw.

This module is compatible with Opto 22 brains and can be used with the Raspberry Pi via the Digital I/O Carrier Board (part number OPTO-P1-40P) for monitoring and controlling industrial devices. Typical applications include sensing voltage presence/absence and contact closure from various switches.