General DS200UPSAG1AAGD Electric Mark V Power Supply Board
Manufacturer: GE Fanuc
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Part Number: DS200UPSAG1AGD
Condition：New with Original Package
Product Type: Power Supplies
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Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
General Electric DS200UPSAG1AAGD Speedtronic Mark V Power Supply Board
The General Electric DS200UPSAG1AAGD, also cataloged as the DS200UPSA Power Supply Regulator and Distribution Board, operates as a dedicated hardware component for bulk DC power filtering, regulation, and distribution within Speedtronic Mark V and EX2000 control systems.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | DS200UPSAG1AAGD |
| Brand | General Electric |
| Origin | United States |
| Weight | 0.50 kg |
| Dimensions | 250 x 150 x 40 mm |
| Operating Temp | 0 to +70 deg C |
| Power Consumption / Efficiency | 88% to 95% efficiency depending on load |
| Input Voltage | +5 VDC +/-10%, +/-12 VDC +/-5% from external bulk supply |
| Output Rails | +5 VDC @ 8 A, +12 VDC @ 1 A, -12 VDC @ 0.5 A, +24 VDC isolated |
| Electrical Isolation | 1500 Vrms input-to-backplane, 500 V channel-to-channel |
| Noise Attenuation | Pi-section common-mode choke, 40 dB attenuation @ 500 kHz |
| Overvoltage Protection | SCR crowbar on +5 VDC rail (trips at 6.2 VDC, clamps at 6.8 VDC) |
| Circuit Protection | Three 5 A / 250 V fuses |
| Backplane & Connectors | 96-pin DIN backplane, three 9-pin pluggable connectors |
Backplane Bus Power Conditioning and Voltage Regulation
The General Electric DS200UPSAG1AAGD utilizes a pi-section common-mode choke to suppress high-frequency switching noise across the 96-pin DIN backplane bus interface. To accommodate heavy I/O density scaling across connected processing cards, the unit delivers dedicated remote sense feedback lines that dynamically compensate for bus voltage drop. An active SCR crowbar circuit monitors the +5 VDC logic rail, immediately clamping transients at 6.8 VDC to prevent overvoltage conditions from reaching microprocessor logic components.
Frequently Asked Questions
Q: What causes an SCR crowbar false trip on the +5 VDC rail, and how is it reset?
A: Aging SCR gate resistors or excessive noise transients can trigger a false trip. When tripped, the red "Over-Volt" latch illuminates, and output power clamps. Reset the circuit by depressing the onboard tactile reset push-button after verifying input power integrity.
Q: Why is correct remote sense lead polarity required during field installation?
A: Reversing or miswiring the remote sense leads prevents the regulator from accurately detecting backplane voltage drop. This condition forces the module to overdrive the +5 VDC supply rail, which trips the SCR crowbar protection and halts card processing.
Field Installation Guidelines
- Power De-energization: De-energize all external bulk DC power feeds before inserting or removing the board from the rack frame to prevent electrical arc damage to the 96-pin DIN connector contacts.
- ESD Mitigation: Connect a grounded ESD wrist strap to an unpainted metal section of the cabinet chassis before handling the board or inspecting physical components.
- Sense Line Verification: Carefully verify pin orientation and continuity on the three 9-pin pluggable terminal connectors before energizing the system. Ensure remote sense leads connect accurately to prevent overdriving supply rails.
- Fuse Inspection: Test all three 5 A / 250 V fuses with a continuity meter prior to mounting. Replace blown fuses strictly with components matching identical voltage and current ratings.
- Mechanical Insertion and Grounding: Press the module firmly into card cage guide rails until the 96-pin DIN backplane connector seats completely. Tighten retaining hardware to secure proper chassis ground continuity.