GE DS200LDCCH1A

The GE DS200LDCCH1A is a DC Link Control Module within the General Electric (GE) Mark VIe Speedtronic™ series, specifically designed for variable frequency drive (VFD) systems in large rotating machinery such as gas turbines and steam turbines. This module manages and monitors the voltage, current, and energy balance of the DC-Link (DC Bus), ensuring the stable operation of power conversion equipment like converters and inverters. It also provides protection functions against overvoltage (OV), undervoltage (UV), and overcurrent (OC).

• High-Precision Monitoring: It collects real-time DC bus voltage and current data with an accuracy of ±0.5%.
• Dynamic Energy Control: It adjusts braking units or energy feedback devices to maintain stable DC bus voltage.
• Fault Protection: It quickly detects abnormalities (e.g., voltage spikes, short circuits) and triggers system protection.

Product Specifications

• Product Model: DS200LDCCH1A
• Manufacturer: General Electric (GE)
• Product Type: DC Link Control Module
• Compatible System: GE Mark VIe Turbine Control Platform
• Voltage Measurement Range: 0-1500V DC
• Current Measurement Range: 0-2000A DC (via Hall sensors)
• Measurement Accuracy: ±0.5% FS
• Protection Functions: Overvoltage (OV), Undervoltage (UV), Overcurrent (OC)
• Response Time: ≤10ms (from fault detection to alarm output)
• Communication Interface: Interacts with the controller via the Mark VIe backplane
• Operating Temperature Range: -30°C to +70°C (-22°F to +158°F)
• Protection Class: IP20 (must be installed in a control cabinet)
• Installation Method: Plugged into the Mark VIe rack, occupying 1 slot
• Power Requirement: +24V DC (powered by the backplane)
• Power Consumption: ≤8W
• Certification Standards: IEC 60068, UL 508

Structure and Composition

• Signal Acquisition Circuit: Features a high-precision voltage divider network (for voltage measurement) and an isolation amplifier (for current measurement).
• DSP Processing Unit: Performs real-time calculations of DC bus power and energy, and executes protection algorithms.
• Comparator and Logic Circuit: Includes hardware-level overvoltage/undervoltage comparators to ensure fast response (no software intervention required).
• Backplane Interface: Uses high-speed connectors to interact with the Mark VIe backplane, uploading data and receiving control commands.
• Status Indicator Lights: LEDs display power status, bus status (normal/alarm), and fault types.
• Metal Enclosure: Incorporates EMI shielding design to resist switching noise interference from inverters.

Key Features and Advantages

1. High-Precision Monitoring and Control:
   • The ±0.5% FS accuracy ensures the precision of DC bus energy management (e.g., control of braking resistor activation points).
   • It performs real-time power calculation (voltage × current) for the optimization of energy feedback systems.
2. Fast Fault Protection:
   • Hardware comparators enable microsecond-level overvoltage/undervoltage detection, protecting IGBT modules from damage.
   • Protection thresholds are configurable via software (through ToolboxST) to adapt to different operating conditions.
3. Seamless System Integration:
   • It is natively compatible with Mark VIe controllers (e.g., IS200ERMG) for automatic data synchronization.
   • It supports redundant configuration and works in coordination with backup modules (e.g., DS200LDCCH1B).
4. Industrial-Grade Reliability:
   • It operates in a wide temperature range of -30°C to +70°C, adapting to the high-temperature environment of inverter cabinets.
   • It complies with the IEC 61800-3 inverter standard and has strong resistance to electromagnetic interference.

Application Fields

• Power Generation Industry: Monitoring the DC bus of gas turbine starting frequency converters (SFC).
• Industrial Drives: Protecting the DC link of frequency converters for large rolling mills and mine hoists.
• New Energy: Controlling the voltage stability of the intermediate circuit in wind power converters.

Typical Application Case

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• Sales Manager : Jinny
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What Makes Us Your Trusted Partner?

Global-Class Inventory Readiness

1. We hold one of the industry’s most comprehensive inventories of automation spares, covering PLCs, DCS, drives, HMIs, and more. No matter your equipment’s brand or age, we ensure quick access to the parts you need – no long waits.

Engineer-Led Technical Support

1. Our team isn’t just sales-focused – it’s made up of engineers with hands-on experience in industrial control systems. From troubleshooting hardware malfunctions to guiding software upgrades, we provide actionable, on-site-level support remotely.

Needs-Driven Custom Services

1. We don’t just supply parts – we solve problems. Beyond standard spares, we offer customized services like old equipment repair, system retrofitting (to extend equipment lifespan), and on-site technical training for your team.

Global Reach, Local Response

1. Our worldwide service network means we can coordinate sourcing and delivery from regional hubs, cutting down lead times. Wherever your facility is, you get the same fast, reliable service as local suppliers.

Obsolete Parts Specialists

1. For discontinued or end-of-life components – a pain point for many factories – we have dedicated sourcing channels. We track hard-to-find parts globally, ensuring your legacy systems keep running.

Service That Puts You First

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