DS200SDCIG1A | GE Mark V Servo Interface Board

Description

Product Introduction

The DS200SDCIG1A is an enhanced servo interface and signal conditioning board for GE’s Mark V DS200 series, used in Speedtronic turbine control systems. It acts as an intermediary between the servo controller (SDCC series) and field devices, providing signal conditioning, distribution, and protection with improved filtering and removable terminal blocks.

The “A” revision of the SDCIG1 adds removable screw terminal blocks (original had fixed terminals), enhanced common-mode filtering on 4–20 mA inputs (60 dB vs 40 dB), improved ESD protection (±15 kV contact), and extended temperature range (−40°C to +70°C). Electrically and functionally identical to the base SDCIG1, but significantly easier to install and maintain.

Key Technical Specifications

Key Selling Points & Differentiators (A Revision Specific)

• Removable terminal blocks on all field connections – Original SDCIG1 had fixed terminals. The A revision uses removable pluggable blocks. Replace a damaged block without unwiring the entire board.
• Enhanced common-mode filtering (60 dB) – Original had 40 dB. Critical for long feedback cable runs (over 500 ft) or near VFDs.
• Improved ESD protection (±15 kV contact) – Meets IEC 61000-4-2 Level 4. Field technicians without wrist straps will not damage the board.
• Extended temperature range (−40°C to +70°C) – Operates in unheated enclosures and cold climates.
• Switchable filtering per channel – Independent configuration per output and per feedback input.
• Torque card included – Laminated card with torque settings (0.5–0.6 Nm).
• 2-year warranty – Same coverage as base SDCIG1.

Frequently Asked Questions (FAQ)

Q: What is the difference between SDCIG1 (base) and SDCIG1A (A revision)?

Q: Can I replace a base SDCIG1 with an SDCIG1A without changing my wiring?
A: Yes—electrically identical. Transfer field wires from old fixed terminals to new removable blocks (remove block, land wires, plug into new board). Allow 1–2 hours.

Q: How do I configure the filters?
A: Each output channel has a jumper for 1 kHz filter (ON = filter enabled, OFF = no filter). Each feedback input pair has a jumper for 100 Hz or 1 kHz filter. Jumpers are accessible with board installed. Default: all filters ON.

Q: What is the output drive capability?
A: 20 mA per channel (versus 10 mA from SDCC). Use SDCIG1A to drive valves requiring >10 mA but <20 mA.

Q: Does the SDCIG1A have LVDT excitation?
A: No. Pass-through only. Use external LVDT conditioner or SDCCG1AGD.

Q: What QC tests are performed?
A: Output buffering (1:1, error <0.05%), feedback conditioning (error <0.1%), filtering verification, common-mode rejection (60 dB), ESD test (±15 kV), isolation (1800 VAC), terminal block torque (0.55 Nm logged), burn-in (48 hours at +65°C).

Q: What shipping protection?
A: Anti-static bag, ESD foam cradle, double-wall box. Each board ships individually. Spare terminal blocks in separate bag. Torque card included.

330100-90-01 Bently
330100-90-00 Bently
24583-04 Bently
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