Description

GE DS200SDCCG4AGD Drive Control Card

The GE DS200SDCCG4AGD, also cataloged as the DS200SDCC Drive Control Card, operates as a dedicated hardware component for LVDT valve position feedback processing and servo loop execution within GE Mark V Speedtronic turbine control systems.

Hardware Specifications

Parameter	Specification
Model	DS200SDCCG4AGD
Brand	GE
Origin	United States
Weight	0.68 kg
Operating Temp	-25 to +60 deg C
Power Consumption	Not specified; powered through Mark V control rack interface
Product Type	Drive Control Card
System Platform	GE Mark V Speedtronic
Servo Channels	8 independent LVDT servo loops
Control Algorithm	Digital PID with feedforward
Servo Outputs	+/-10 VDC, 10 mA max per channel
Resolution	16-bit, 0.3 mV
LVDT Inputs	3-wire or 5-wire per channel
LVDT Excitation	2.5 kHz, 2.5 Vrms nominal, adjustable 1-5 Vrms
Sensitivity Range	1-25 mV/V/mm
Linearity Error	<0.1% full scale after calibration
Secondary Feedback	4-20 mA per channel
Update Rate	1 ms simultaneous update across all channels
Discrete Inputs	16 inputs, 24 VDC
Processor Architecture	3 CPUs with shared RAM
Connectors	Dual headers for power supply and I/O interface
PCB Coating	Normal conformal coating

GE Mark V LVDT Servo Control and Industrial Drive Integration

The DS200SDCCG4AGD integrates eight independent LVDT servo channels with onboard excitation and demodulation circuits. Each channel processes valve position feedback directly from LVDT devices and executes digital PID control calculations for turbine valve positioning.

The GE industrial control architecture uses deterministic control execution, backplane communication, and I/O density scaling for multi-channel servo applications. The three-CPU structure provides separated processing resources for control algorithms, feedback acquisition, and system coordination.

The board supports firmware flash compatibility within the Mark V platform and maintains direct interface capability with valve servo circuits through analog outputs, secondary 4-20 mA feedback channels, and discrete status inputs.

Frequently Asked Questions

Q: How many LVDT servo channels are available on the DS200SDCCG4AGD?
A: The board provides 8 independent LVDT servo channels, each with integrated excitation and demodulation functions.

Q: What type of feedback signals can the card process?
A: The card accepts 3-wire or 5-wire LVDT feedback signals and supports secondary 4-20 mA feedback channels.

Q: What control method is used for valve positioning?
A: The board executes digital PID control with feedforward processing for servo loop regulation.

Field Installation Guidelines

Install the DS200SDCCG4AGD in the specified GE Mark V rack location with system power removed before board replacement or inspection.

Verify rack connector engagement, I/O header connections, and mechanical mounting before applying control power. Route LVDT signal wiring separately from high-current conductors and switching circuits to minimize electromagnetic interference.

Connect cable shields according to the cabinet grounding design. Confirm LVDT wiring configuration, excitation settings, feedback scaling, and servo calibration parameters before returning the turbine control system to operation.

Specifications

• Brand: General Electric

Advantages

• High reliability in industrial environments
• Supports continuous operation
• Compatible with major PLC/DCS systems