DS200SPCBG1A | GE PLC Sensor Supply & Signal Conditioning Fast Ship

Description

Product Core Brief

• Model: DS200SPCBG1A
• Brand: General Electric (GE)
• Series: Mark V DS200
• Core Function: Integrated sensor power and signal conditioning
• Product Type: Sensor Power & Conditioning Board (8 AI, 16 DI, 8 power outputs)
• Key Specs: 8 isolated 24 V @ 100 mA | 8 x 4–20 mA inputs | 16 x 24 V discrete inputs | 2500 VAC isolation
• Condition: New Original.

Product Introduction

The DS200SPCBG1A is an integrated sensor power supply and signal conditioning board for GE’s Mark V DS200 series, used in Speedtronic turbine control systems. It combines eight isolated 24 VDC sensor power outputs, eight 4–20 mA analog inputs, and sixteen 24 VDC discrete inputs on a single board.

The SPCBG1A replaces three separate boards: a sensor power supply (SNPAH), an analog input module (ADPBG), and a discrete input module (DDCBG). It is designed for dense I/O applications where cabinet space is limited. All eight analog inputs have 2500 VAC isolation. All eight power outputs are isolated per channel. The 16 discrete inputs share a common isolated ground but are optically isolated from the backplane. Use it for turbine auxiliary systems, balance of plant monitoring, or any application requiring mixed I/O types.

Key Technical Specifications

Key Selling Points & Differentiators

• Three functions in one board – Sensor power + analog inputs + discrete inputs. Saves two rack slots and reduces wiring.
• 8 isolated 24 VDC outputs (100 mA each) – Power 4–20 mA loop-powered transmitters directly. No external power supply needed.
• 8 x 4–20 mA analog inputs (16-bit, ±0.1%) – Read pressure, temperature, flow transmitters. Redundant inputs supported.
• 16 x 24 VDC discrete inputs – Monitor limit switches, proximity sensors, relay contacts. Two isolated banks of 8.
• All analog channels fully isolated (2500 VAC) – No ground loops between sensors.
• Short-circuit protection on power outputs – Auto-recovery. No fuses to replace.
• Removable terminal blocks – All field connections on removable blocks.
• QC includes full mixed I/O test – All 32 channels (8 power, 8 analog, 16 discrete) tested simultaneously for 72 hours.
• 2-year warranty

Frequently Asked Questions (FAQ)

Q: What is the advantage of using SPCBG1A over separate modules?

Q: Can the analog inputs be configured for 0–10 VDC instead of 4–20 mA?
A: No—4–20 mA only. For voltage inputs, use separate ADPBG module.

Q: How do I wire a 2-wire loop-powered transmitter?
A: Connect transmitter + to sensor power output +. Connect transmitter – to analog input +. Analog input – to power supply common (isolated per channel). The board provides 24 V loop power.

Q: What is the total power budget?
A: Each analog input draws 20 mA max from its corresponding power output when used with 2-wire transmitters. Total power output capacity: 8 x 100 mA = 800 mA. Typical 8 transmitters draw 160 mA (8 x 20 mA). Remaining capacity for other sensors.

Q: Can the discrete inputs be used with dry contacts?
A: Yes—the board provides 24 V wetting current (5 mA). Connect one side of contact to discrete input +, other side to discrete common (COM). No external power needed.

Q: What QC tests are specific to the SPCBG1A?
A: Ten tests:

1. Power output: voltage and current (100 mA per channel)
2. Short-circuit protection per channel (foldback, recovery)
3. Analog input accuracy: 4–20 mA, error <±0.1%
4. Analog input isolation: 3000 VAC
5. Discrete input threshold: <5 V OFF, >15 V ON
6. Discrete input isolation: 1800 VAC
7. Cross-channel interference: no crosstalk between analog, discrete, power
8. Mixed I/O test: 72 hours continuous, all channels active
9. Temperature: −40°C to +70°C
10. Burn-in: 72 hours at +65°C

Q: What shipping protection?
A: Anti-static bag, ESD foam cradle, double-wall box. External power supply not included (order separately). Spare terminal blocks included. Torque card included. Each board ships individually.

1756-PA72
1757-SRM
1756-RM2