G4I-D22A

Description

A 16-point DC input module for LS G4/GLOFA PLCs, rated for 12/24 VDC operation with typical rated input currents of about 5 / 11 mA depending on voltage. Operating window is roughly 10.2–26.4 VDC.

The Polar Energy Assessment:

G4I-D22A is the standard 16-point DC input module used across LS G4 installations. It supports common industrial DC sensing ranges, has documented input currents and an operating voltage window that tolerates supply ripple and variation. This module is widely stocked by distributors as a common spare for LS PLC maintenance.

Pros

• 16 channels in a single module gives good density for DC sensor arrays.
• Wide operating range handles typical DC supply variation and ripple.

Limitations

• DC input wiring still requires proper shielding and common return handling to avoid false triggers.
• Not suitable for AC sensing without interface components.

Typical use cases

• Reading 12/24 VDC sensors, proximity switches, and encoder limit/home signals.
• Standard spare module for field service of G4 PLC racks.
• OEM control panels built around 24 VDC local logic.