DS200SHVIG1BDH | GE DS200 300mA Servo Valve Positioner In Stock

Description

Product Core Brief

• Model: DS200SHVIG1BDH
• Brand: General Electric (GE)
• Series: Mark V DS200
• Core Function: Extended-range HART-enabled smart valve positioner
• Product Type: HART Servo Valve Driver (1 channel)
• Key Specs: 0–300 mA output | HART protocol | PI control | PC configurable
• Condition: New Original.

Product Introduction

The DS200SHVIG1BDH is a HART-enabled extended-range servo valve interface board for GE’s Mark V DS200 series, used in Speedtronic turbine control systems. It provides 0–300 mA output current for high-current hydraulic valves with 4–20 mA position feedback and onboard PI control, plus digital HART communication.

The “BDH” suffix indicates a HART (Highway Addressable Remote Transducer) variant. Standard SHVIG1B has no digital communication. The BDH superimposes a digital signal on the 4–20 mA setpoint loop, allowing remote configuration, monitoring, and diagnostics using a HART master (e.g., handheld communicator or DCS with HART card). Configure PI gains, read valve position, monitor output current, and log valve travel history—all over the same two wires. Use it for smart valve positioning in remote or inaccessible locations.

Key Technical Specifications

Key Selling Points & Differentiators

• HART digital communication – Configure and monitor over existing 4–20 mA wiring. No additional cables. Use handheld HART communicator (e.g., Emerson 475) or PC with included USB modem.
• Remote diagnostics – Read valve position, output current, cycle count, and stick-slip detection from control room. Predictive maintenance alerts.
• 0–300 mA output – Drives high-current hydraulic valves (250–300 mA). 15Ω minimum load.
• Onboard PI controller – Closes position loop locally. Can be configured and tuned remotely via HART.
• Failsafe configuration – Set failsafe output value (0 mA, hold last, or preset current) via HART. Activates on loss of setpoint or communication.
• Valve travel history – Logs minimum and maximum valve position, total cycles, and time-in-position. Reset via HART command.
• Stick-slip detection – Analyzes feedback signal for irregularities. Alerts when valve requires maintenance.
• QC includes HART communication verification – Read/write all configurable parameters, verify digital overlay does not affect analog accuracy.
• 2-year warranty

Frequently Asked Questions (FAQ)

Q: What is the difference between SHVIG1B (standard extended range) and SHVIG1BDH (HART-enabled)?

Q: How do I connect a HART communicator to the board?
A: Connect the HART communicator across the 250Ω resistor (internal or external). The board has a switchable 250Ω resistor for HART communication. Default: internal resistor enabled. Connect communicator leads to the “HART” terminals on the board (or across the setpoint input terminals). Communicator must support HART 5, 6, or 7.

Q: Can I use the BDH without HART (as a standard positioner)?
A: Yes. Set the control mode jumper to “Analog”. HART is ignored. The board operates as SHVIG1B with fixed configuration (set by last HART write). Default configuration: P=2.0, I=2 sec, output gain=200 mA at 10 V. Adjust via HART if needed, or leave as-is.

Q: Do I need a HART handheld communicator, or can I use a PC?
A: Either. We include a USB-to-HART modem and Windows software. Connect PC to board via HART terminals (or across setpoint loop). Software allows full configuration and monitoring. For field use, any HART handheld communicator (Emerson 475, ProComSol, etc.) works.

Q: What is the stick-slip detection feature?
A: The board analyzes the position feedback signal for characteristic patterns of valve stiction. When detected, it sets a diagnostic alert (readable via HART). Use this for predictive maintenance: replace or service valve before it fails. Sensitivity adjustable via HART.

Q: Does HART communication affect the analog setpoint accuracy?
A: No. The Bell 202 FSK signal (1200 Hz and 2200 Hz) is frequency-shift keyed and does not affect the 4–20 mA DC value. The board filters out the digital signal before reading setpoint. Analog accuracy remains ±0.1%.

Q: What is the maximum number of BDH boards on one HART loop?
A: HART multidrop supports up to 15 devices on the same 4–20 mA loop. Each board must have a unique HART address (1–15). Address 0 is reserved for point-to-point. In multidrop mode, each board’s output is fixed current (e.g., 4 mA) and setpoint is digital only. Contact us for multidrop configuration guide.

Q: What QC tests are specific to the BDH revision?
A: Twelve tests:

1. HART physical layer: verify 1200/2200 Hz FSK, amplitude 0.5–1.0 V peak-peak across 250Ω
2. HART command set: read/write all configurable parameters (50+ commands tested)
3. Analog accuracy with HART active: 4–20 mA setpoint, error <±0.1% (digital overlay present)
4. HART multidrop: address assignment, communication at 1, 5, 10, 15 addresses
5. Output capability: 300 mA into 15Ω load
6. PI step response via HART: 10% to 90% step, overshoot <10%, settling time <200 ms (P and I set via HART)
7. Valve travel logging: cycle counter increments, min/max position recorded
8. Stick-slip detection: inject simulated stiction, verify alert within 10 cycles
9. Failsafe test: remove setpoint, verify output goes to preset value (via HART config)
10. Isolation: input-to-output at 1800 VAC
11. Burn-in: 72 hours at +65°C, HART communication active, output at 200 mA into 20Ω load
12. HART software compatibility: tested with included PC software and Emerson 475 communicator

Q: What shipping protection?
A: Anti-static bag, ESD foam cradle, double-wall box with “ESD SENSITIVE,” “FRAGILE” labels. Each board ships individually. USB-to-HART modem and USB drive (with software) in separate anti-static bag. PC connection cable included. Configuration guide (including HART command set) included. Spare fuse included. External power supply not included (order separately).

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