1. General Information

• Manufacturer: ABB (Sweden)

• Model Number: 216DB61

• Part Number: HESG324063R100/J

• Auxiliary Board PN: HESG216882/A

• Product Name: Binary Digital Output Module

• Series: AC450 Excitation Control System

• Module Type: Excitation Logic Output & Trip Drive Board (Obsolete Vintage Module)

• Application: Dedicated binary output board for AC450 excitation rack; executes excitation trip command, field breaker control, pulse trigger signal and interlock contact output; responsible for protection action and switching logic; essential matching board for old thermal & hydropower excitation cabinet.

• Installation Rule: Standard slot in AC450 rack, matched behind I/O sampling board

• Compliance: CE, IEC 61000 EMC Electromagnetic Compatibility

2. Functional Description

• Binary Output: Isolated digital relay contact & level signal output

• Trip Logic: Overexcitation, underexcitation, fault trip drive output

• Trigger Pulse: SCR thyristor trigger pulse for rectifier bridge

• Interlock Control: External breaker & isolating switch logic linkage

• Bus Communication: Receives logic command from 216VC62a main CPU

3. Electrical Specifications

• Power Supply: 24 VDC ±10% Industrial DC Power

• Power Consumption: ≤ 5.0 W Low power consumption

• Output Type: Dry contact + High-speed pulse signal

• Contact Rating: 250VAC / 2A Resistive load

• Communication Bus: Dedicated AC450 internal parallel bus

• Isolation Voltage: 1500 VAC reinforced isolation grade

4. Environmental Specifications

• Operating Temperature: -25 °C ~ +70 °C (-13 °F ~ +158 °F)

• Storage Temperature: -40 °C ~ +85 °C (-40 °F ~ +185 °F)

• Relative Humidity: 5% ~ 95% (Non-condensing)

• Anti-vibration: Compliant with IEC 60068 industrial vibration standard

5. Mechanical Specifications

• Structure: Two-piece assembly board (Main output board + auxiliary bottom board)

• Dimensions (H × W × D): 223 × 200 × 30 mm

• Weight: Approximately 0.45 kg

• Mounting: Rack card slot installation, non hot-swap

6. Compatible Devices

• System Rack: AC450 Excitation System Rack

• Matching CPU: 216VC62a (Calculation & command issuing)

• Matching Sampling: 216NG62A (Signal feedback collection)

• Application Cabinet: Generator Static Excitation Cabinet

7. Key Features

• Professional excitation logic output for trip and protection action

• High anti-interference circuit adapts to strong electromagnetic cabinet environment

• Thyristor pulse output ensures stable rectifier bridge conduction

• Accurate response to CPU protection command for generator safety

• Obsolete rare spare parts, necessary for old AC450 rack complete set

8. Core Definition (AC450 Four-Piece Set)

• PMA323BE: Power Supply (Whole rack power source).

• 216VC62a: CPU Board (Calculation & command core).

• 216NG62A: I/O Sampling Board (Signal acquisition).

• 216DB61: Binary Output Board (Trip & drive execution).

• Complete Logic: Power → Sampling → Calculation → Output Action.