DS200SDCIG1AFB | GE DS200 Solid State Relay I/O In Stock

Description

Product Introduction

The DS200SDCIG1AFB is a fast-switching solid state relay interface board for GE’s Mark V DS200 series, used in Speedtronic turbine control systems. It provides four high-speed SSR outputs for servo valve enable, fast shutdown, or discrete control, along with eight 4–20 mA feedback inputs for position monitoring.

Unlike mechanical relay boards (RTBA series) that switch in 10–15 ms, the AFB switches in under 100 µs. Use it to enable/disable servo valves with microsecond precision, implement fast fuel trips, or control high-speed solenoids. The board also conditions 4–20 mA feedback signals from valve position transmitters. It sits between a servo controller (SDCC) and field devices, adding fast discrete output capability without replacing the main servo control board.

Key Technical Specifications

Key Selling Points & Differentiators

• 4 x SSR outputs with <100 µs switching (DC mode) – 150x faster than mechanical relays (15 ms). Use for fast fuel trips, high-speed valve enable, or microsecond-precision shutdown.
• Independent AC/DC configuration per output – Each of the 4 outputs can be configured for AC (zero-crossing) or DC (random turn-on) via jumper. Mix 120 VAC and 24 VDC on the same board.
• 8 x 4–20 mA feedback inputs with loop power – Condition valve position feedback signals. No external power supplies needed for 2-wire transmitters.
• Opto-isolation at 4000 VAC (outputs to backplane) – Protects the Mark V CPU and servo controller from field-side transients.
• No mechanical contacts to wear out – Unlimited mechanical life. Silent operation.
• Snubber protection on AC outputs – Reduces dV/dt false triggering and extends SSR life on inductive loads.
• QC includes 1,000,000 cycle test on all SSR outputs – Each channel cycled at 1 kHz (DC mode) for 1,000 seconds. Zero misfires.
• 2-year warranty – Covers output failure, feedback input accuracy, and isolation.

Frequently Asked Questions (FAQ)

Q: What is the difference between SDCIG1A (pass-through servo interface), SDCIG1AEB (100 mA output), and SDCIG1AFB (SSR outputs)?

Use AFB for discrete on/off control (enable, trip, fast shutdown). Use SDCIG1A for continuous analog servo control.

Q: Can I use the AFB to replace a mechanical relay that controls a servo valve enable signal?
A: Yes. Most servo valves have an enable input (24 VDC, 10–50 mA). Connect the AFB DC output (configured for DC mode) directly to the valve enable. The <100 µs response time is much faster than a mechanical relay’s 15 ms. Ensure your valve enable input accepts 5–60 VDC.

Q: How do I configure each output for AC or DC?
A: Each output has a 2-position jumper. Install jumper for AC (zero-crossing). Remove jumper for DC (random turn-on). Default from factory: Outputs 1 & 2 = AC, Outputs 3 & 4 = DC. Change jumpers before installing the board. Do not change with power applied.

Q: What is the leakage current when the SSR is off?
A: AC outputs: <1 mA at 280 VAC. This may be enough to dimly light an LED indicator (2 mA typical). Add a 10 kΩ, 2 W bleeder resistor in parallel with the load. DC outputs: <0.1 mA at 60 VDC—not enough to light an LED.

Q: The board has 8 feedback inputs. Can I use them with 4–20 mA transmitters that have their own power supply?
A: Yes. Move the jumper on the feedback input pair to “EXT” position. This disables the board’s internal 24 VDC loop power. Connect the transmitter’s external supply to the input terminals (observe polarity).

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

1. Visual inspection (SSR solder joints, terminal alignment)
2. Input current per channel: 5 mA ±1 mA at 24 VDC
3. Turn-on/off time (DC mode): <100 µs (oscilloscope capture)
4. On-state voltage drop: <1.5 VAC at 2 A, <1.0 VDC at 2 A
5. Off-state leakage: <1 mA AC, <0.1 mA DC
6. High-cycle test: All 4 outputs at 1 kHz (DC) for 1,000,000 cycles
7. Feedback input calibration: 4.000 mA, 12.000 mA, 20.000 mA, error <±0.02 mA
8. Isolation: Outputs to backplane at 5000 VAC; feedback to backplane at 1800 VAC
9. Thermal test: 2 A on all 4 outputs for 1 hour, case temperature <85°C
10. Burn-in: 72 hours at +60°C, all outputs cycling at 10 Hz

Q: What shipping protection?
A: Anti-static bag, ESD foam cradle, double-wall box with “ESD SENSITIVE” and “FRAGILE” labels. Each board ships individually. AC/DC jumper configuration card included. Spare snubber capacitors in separate bag.

330130-080-01-00 Bently
Bently 330130-080-01-CN
Bently 330180-50-00
330180-50-CN Bently