Main Application

1. Field digital switching output for Ovation DCS power plant boiler/turbine auxiliary control

2. Matching QSD servo system (together with 2840A78G01 power module) for servo valve on-off logic control

3. Remote control of field relay, solenoid valve and motor auxiliary contact drive

二、Electrical Technical Parameters（电气参数）

1. Field Output Rating

• Rated load voltage: Max 60VDC sinking/sourcing output

• Single channel rated drive current: 0.5A per channel

• Total module maximum output current: 4A

1. Backplane Bus Power Supply

• Powered by Ovation rack backplane 5VDC/24VDC bus, no extra external AC input required

1. Isolation & Protection

• Channel-to-backplane isolation ≥1000VAC

• Per-channel independent short-circuit protection, OCP over-current protection, channel fault alarm with front LED indicator

1. Environment Condition

• Operating temperature: 0℃ ~ +60℃ (cabinet indoor installation)

• Storage temperature: -40℃ ~ +85℃

• Relative humidity: 5%~95% non-condensing

三、Mechanical Specification（物理规格）

• Overall dimension: L133mm × W82mm × H16mm

• Net weight: ~454g (1.0 LBS)

• Installation: Ovation standard rack backplane plug-in + DIN rail optional mounting

• Interface: Dual female pin terminal for field wiring, gold-plated back connector for system backplane bus docking

• Housing: Black flame retardant plastic casing with heat dissipation slots

四、Datasheet Core Description（说明书摘要）

1. Channel configuration: Multi-channel isolated digital dry/open collector output;

2. Hot swap support: Allows module replacement without powering off the control rack;

3. Diagnostics: Built-in register & LED to report open circuit, overload, short-circuit fault per individual channel for fast maintenance;

4. Compatibility: Interchangeable with all standard Ovation Q-series I/O rack, pairing with 2840A78G01 servo power supply card for complete servo control unit.