1. Product Overview

2. Electrical Specifications

• Channel configuration: 16 isolated digital input channels in 4-group quad-bus layout; designed for passive dry contact input.

• Field loop supply: Onboard isolated 48VDC wetting power for dry contact detection and open-circuit diagnostics.

• Backplane power: Powered via SUB8 rack backplane (+5VDC, ±12VDC); typical power consumption ≤3.8W.

• Galvanic isolation: 1000VAC isolation between each input channel and internal backplane bus to suppress EMI from inverters and contactors.

• Sampling speed: Full-channel scan cycle less than 2ms; configurable for SOE sequence of event recording via system software.

• Circuit protection: Upgraded overvoltage, short-circuit and surge protection on G02 revision.

3. Mechanical & Environmental Specifications

• Form factor: Standard Ovation plug-in module for SUB8 rack; dimension: 260mm × 100mm × 25mm; supports hot-swap operation.

• Operating temperature: -40℃ ~ +70℃; storage temperature: -45℃ ~ +85℃.

• Ambient humidity: 5%~95%RH non-condensing; complies with CE industrial EMC standards.

4. Key Features & Front Panel Indicators

Front Panel LED Status

• POWER (Green): Normal module power supply

• RUN (Green): Healthy SUB8 bus communication

• CHx Indicators: Individual status LED for each of 16 input channels, lit when field contact closes

• FAULT (Red): Triggered by channel short-circuit, open circuit or onboard hardware failure

Core Functions

1. Hot-swap capable: On-site replacement without rack power shutdown, no interruption to other working I/O points.

2. Automatic line diagnostics: Open/short circuit fault detected per channel and reported to DPU for system alarming.

3. Compatible with redundant SUB8 bus architecture when paired with redundant 3A99159G03 master cards.

4. Software configurable: Set NO/NC logic and input filter debounce time through Ovation Developer configuration software.

5. Typical Application

• Status signal collection for boiler fans, coal mills and feedwater pumps in thermal power plants.

• Running/feedback signal acquisition of pumps and compressors in petrochemical processing units.

• On-site switch and interlock signal monitoring for metallurgy and wastewater treatment DCS projects.

6. Installation & Maintenance Guidelines

1. Insert the module into designated slot of standard SUB8 rack and lock front latch to avoid loose contact caused by equipment vibration.

2. Conduct annual maintenance including PCB dust removal and terminal wiring tightness inspection.

3. Avoid plugging/unplugging under full-load bus condition to prevent instantaneous electrical surge damage to onboard circuits.