Core Application

1. Field digital switch output for Ovation DCS boiler auxiliary equipment, solenoid valve, intermediate relay & contactor drive;

2. Servo control cabinet digital logic output matching QSD servo power supply 2840A78G01;

3. On-site motor auxiliary circuit remote on/off control, cabinet interlock signal output.

二、Electrical Technical Specifications（电气参数）

1. Field Output Rating

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

• Single channel continuous output current: 300mA/CH（optimized from 0.5A of G01）, per-channel independent RC filter onboard for surge suppression

• Total maximum module load current: 3.6A

1. Backplane Power Supply

   Powered by Ovation rack backplane bus: +5VDC / +24VDC, no external AC power input needed

2. Isolation & Protection

• Channel-to-backplane isolation voltage ≥1000VAC reinforced isolation;

• Independent over-current(OCP), short-circuit auto-locking protection per channel; front panel LED status indicator for power/channel open/short fault alarm;

• Built-in EMC filter circuit (upgraded G02 exclusive design, not equipped on G01 version)

1. Ambient Conditions

• Operating Temp: 0℃ ~ +60℃ (enclosed control cabinet)

• Storage Temp: -40℃ ~ +85℃

• Humidity: 5%~95%RH non-condensing, anti-condensation coating on PCB

三、Mechanical Specifications（物理规格）

• Overall Dimension: L133mm × W82mm × H16mm

• Net Weight: ≈390g（0.39KG/0.86LBS）, lighter than G01 model

• Mounting: Standard Ovation DCS rack backplane plug-in installation, hot-swap supported; optional DIN rail adapter mounting

• Interface: Side screw terminal block for field wiring; gold-plated rear edge connector for rack backplane bus docking

• Housing: Black flame retardant ABS plastic casing with cooling vents, PCB conformal coated for dust & moisture resistance

四、Datasheet Key Difference vs 2840A79G01

1. G02 added channel surge filter circuit, improve anti-electromagnetic interference for high-noise power plant site；

2. Single channel rated current downgraded to 300mA for stable long-term running, optimize component derating design；

3. PCB layout revised (Rev.H/17 hardware revision), component arrangement upgraded for maintenance convenience；

4. Pin definition fully compatible with G01, direct interchangeable replacement in same Ovation rack slot.