DS200SDCIG2AEB | GE Mark V High Current Dual Servo Interface

Description

Product Core Brief

• Model: DS200SDCIG2AEB
• Brand: General Electric (GE)
• Series: Mark V DS200
• Core Function: High-current dual servo interface for direct-drive valves
• Product Type: High Current Servo Interface (2 channels)
• Key Specs: 2 x 100 mA outputs | 4 x 4–20 mA inputs | Heatsink included | Current limit adjustable
• Condition: New Original.

Product Introduction

The DS200SDCIG2AEB is a high-current dual-channel servo interface board for GE’s Mark V DS200 series, used in Speedtronic turbine control systems. It provides two independent servo interface channels with 100 mA output drive per channel—ten times the current of standard SDCIG2A boards (10 mA).

The “AEB” suffix indicates a high-current dual-channel variant. Standard SDCIG2A outputs are current-limited to 20 mA. The AEB delivers 100 mA per channel, sufficient for direct-drive proportional valves and high-current torque motors. Includes heatsink (required), adjustable current limit (10–120 mA per channel), short-circuit protection, and thermal shutdown. Use it between an SDCC servo controller and high-current valves when the controller’s 10 mA output is insufficient, or as a standalone interface for two high-current valves in one slot.

Key Technical Specifications

Key Selling Points & Differentiators

• 2 x 100 mA outputs in one slot – Drives two direct-drive proportional valves or torque motors. Saves one rack slot versus two SDCIG1AEB boards.
• Adjustable current limit per channel (10–120 mA) – DIP switches on board (no software needed). Match each valve’s requirement. Prevent coil burnout.
• Short-circuit protection per channel – Foldback current limiting. Auto-recovery when short removed.
• Thermal protection – Shared heatsink temperature monitor. Shutdown at 85°C, auto-reset at 75°C.
• Heatsink included – Required for operation above 50 mA per channel. Attached to board.
• Redundant feedback per channel (2 x 4–20 mA) – Each channel accepts two position feedback signals.
• Switchable output filtering (1 kHz) – Enable/disable per channel.
• QC includes 100 mA load test both channels simultaneously for 24 hours – Thermal imaging verifies heatsink temperature <85°C.
• 2-year warranty

Frequently Asked Questions (FAQ)

Q: What is the difference between SDCIG2A (20 mA), SDCIG2AEB (100 mA), and SDCIG2AHB (5 A SSR)?

Q: What is the output current derating vs temperature?
A: With heatsink and natural convection: at 25°C: 100 mA per channel; at 50°C: 75 mA; at 65°C: 50 mA. With forced air cooling (200 LFM): 100 mA at 50°C, 75 mA at 65°C. Derating chart included.

Q: How do I set the current limit per channel?
A: Each channel has a 6-position DIP switch. Settings: 10, 20, 30, 50, 75, 100, 120 mA (combinations for intermediate values). Default: 100 mA. Switch positions documented on board silkscreen and in included guide. No software required.

Q: Can I run both channels at 100 mA simultaneously?
A: Thermally limited. At 25°C ambient with heatsink and natural convection, both channels at 100 mA will reach 85°C case temperature within 1 hour. For continuous operation, add forced air cooling (400 LFM) or panel mount using thermal pad. At 50°C ambient, limit to 75 mA per channel without forced air.

Q: What happens if I exceed the current limit setting?
A: The output voltage folds back to maintain the set current limit. Example: 50Ω load at 10 V would draw 200 mA. With current limit set to 100 mA, output voltage drops to 5 V. Your valve may not reach full stroke.

Q: The AEB has a heatsink. Does it fit in a standard Mark V rack?
A: PCB is 4HP (single slot). Heatsink extends into adjacent slot (requires 8HP total width). Plan rack layout accordingly. For tight spaces, use panel mount option (remove heatsink, mount board directly to metal panel with thermal pad). Contact us for panel mount kit.

Q: What QC tests are specific to the AEB revision?
A: Standard tests per channel plus: output current capability (100 mA into 100Ω per channel), current limit accuracy (all DIP switch settings), short-circuit test per channel (foldback, recovery), thermal shutdown test, dual-channel simultaneous 100 mA load test (4 hours), thermal imaging, heatsink attachment torque verification, derating verification at +65°C (50 mA per channel). Burn-in: 72 hours at +50°C, 75 mA per channel.

Q: What shipping protection?
A: Anti-static bag, ESD foam cradle with heatsink cutout, double-wall box with “HEAVY,” “FRAGILE” labels. Shock indicator. Each board ships individually. Thermal pad kit in separate bag. Current limit DIP switch guide laminated. Spare fuses included.

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