Emerson 1C31166G02 Ovation Digital Input Module

Number of input channels: 32, grouped isolated. Input voltage: 24V DC, 48V DC, 120V AC selectable per group. Input type: sinking/sourcing compatible for DC inputs. ON-state threshold: 10V DC / 70V AC. OFF-state threshold: 5V DC / 30V AC. Input response time: 5ms typical. Backplane current: 300mA @ 5V DC. Power dissipation: 1.5W maximum. Isolation: 250V AC group-to-group, 500V AC group-to-bus. Operating temperature range: 0°C to +60°C.

Thirty-two high-density channels maximize discrete input capacity per slot. Configurable input voltage types adapt to diverse field device standards. Built-in input filtering eliminates false triggering from contact bounce and electrical noise. It provides group-level fault detection and per-channel status indication. Hot-swap capability supports online replacement.

It is used for equipment status monitoring, limit switch detection, contactor auxiliary contact feedback, pushbutton status input, and general discrete signal acquisition in power plants, manufacturing lines and process control systems.

Front panel is flame-retardant engineering plastic. PCB uses FR-4 glass epoxy material. Input circuits use opto-isolators for galvanic isolation. Connectors are gold-plated copper alloy.

It adopts standard Ovation I/O module form factor with front panel channel status LEDs, group identification markers, rear backplane connector, and modular card guide design.

It receives discrete voltage signals from field devices, conditions and filters the signals through opto-isolation circuits, converts them to logic-level digital signals, and transmits the channel status data to the Ovation controller via the system backplane for logic processing and equipment monitoring.

Install in any available Ovation chassis I/O slot. Group input wiring by common voltage reference. Use appropriately sized copper wire for field connections. Tighten terminal screws to specified torque. Ensure reliable protective grounding.