Description

GE DS200SDCCG1AEC Mark V Speedtronic Drive Control Board

Configured for high-speed algorithm processing and real-time turbine coordination in Speedtronic control racks, the GE DS200SDCCG1AEC (DS200SDCC Drive Control Board) provides direct physical/electrical execution. The board integrates three 16-bit digital signal processors (DSPs) to administer motor control timing, firing angle calculation for power electronic bridges, and local sub-system diagnostics. It interacts directly with power interface boards and field sensors through specialized signal distribution hardware over dedicated backplane pathways.

Hardware Specifications

Parameter	Specification
Model	DS200SDCCG1AEC
Brand	GE
Origin	United States
Weight	0.96 kg
Dimensions	160 mm x 233 mm x 20 mm
Operating Temp	0 deg C to 60 deg C
Power Consumption	+5 VDC at 6.0 A, +15 VDC at 0.5 A, +24 VDC at 0.2 A
Processing Architecture	3 x 16-bit DSPs (Master, Communications, I/O)
Onboard Memory	128 kB Dual-Port RAM, 256 kB EPROM Firmware
Analog Outputs	12-bit isolated, -10 VDC to +10 VDC, 5 mA maximum load
Servo Channels	2 channels, jumper-selectable 10 mA to 120 mA coil current
LVDT Sensor Interface	6 differential inputs, 3-wire or 4-wire selectable
Digital Field I/O	64 opto-isolated inputs, 32 relay outputs
Bus Communication Interface	DLAN, ARCNET, RS-232 TIMN port, Genius Bus support
Electrical Isolation	1500 VDC field-to-logic, 2.5 kV optical isolation

Backplane Bus Communication Velocity & Firmware Flash Compatibility

The DS200SDCC board relies on high-speed deterministic bus communication interfaces to exchange state variables across the drive rack backplane without CPU blocking. Dual-port RAM (DPRAM) buffers data between the internal DSP cores and external fieldbus protocols, eliminating data bus contention. Firmware execution depends on strict flash/EPROM chip set alignment across all three processors. Mismatched firmware versions among the processing nodes cause state desynchronization, triggering fault codes and safe shutdown sequences during boot initialization.

Frequently Asked Questions

Q: How are the onboard servo channel output currents configured for different valve actuators?

A: Coil currents on the 2 servo control channels are established via physical hardware jumper blocks on the printed circuit board. Jumpers must be configured in deactivated-power states to match the target 10 mA to 120 mA rating before connecting actuator leads.

Q: Does the board support live hot-swapping inside a powered VME rack?

A: No. Replacing the board while the backplane is energized risks voltage transients, corrupted EPROM states, and potential power supply shorts. Always disconnect main power and lock out the supply before extraction.

Q: What step is required when transferring configurable settings to a replacement DS200SDCC board?

A: Configuration parameters and site-specific operational data are stored in removable EPROM or EEPROM chips. These memory chips must be transferred carefully from the existing board to the new board using anti-static handling tools prior to installation.

Field Installation Guidelines

• ESD Protection Protocols: Wear a grounded wrist strap connected to an unpainted metal chassis ground point before touching the card. Hold the circuit board strictly by its front faceplate or plastic card edges to prevent static discharge into exposed DSP leads.
• Chassis & Mechanical Mounting: Ensure the target 6U VME rack slot is free of debris. Align the board edges with the card guides and push firmly until the board seats fully into the backplane connectors. Secure the top and bottom retaining screws to achieve solid chassis grounding.
• Cable Strain Relief & Routing: Route incoming ARCNET, DLAN, and analog sensor field cables away from high-voltage AC lines and switching power leads. Fasten all ribbon and communication cables with mechanical strain relief ties to minimize physical stress on board header pins.
• Shield Grounding Practices: Field signal cable shields (LVDT, servo feedback, analog outputs) must be grounded at a single point—typically at the designated ground bar in the enclosure—to prevent ground loops and high-frequency noise interference on measurement circuits.

Specifications

• Brand: General Electric

Advantages

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