GE IS200TTURH1CFD TTUR Turbine Terminal Board

Description

Hardware & Electrical Specifications

• Model：IS200TTURH1CFD
• Part Number：IS200TTURH1CFD
• Module Type：TTUR Turbine Terminal Board
• Mounting：Cabinet panel mounting inside turbine control cabinet
• Logic power supply：24‑28 VDC supplied by VTUR / PTUR processor pack
• Speed pulse input：6‑channel magnetic‑pickup input, frequency range 2 Hz‑20 kHz, input impedance＞10 kΩ
• Analog input：Thermocouple / RTD temperature inputs; 4‑20 mA analog inputs for pressure transmitters
• Discrete input：Barrier‑type dry‑contact inputs for hard‑wired interlock and protection signals
• Flame‑detector circuit：Flame‑detector return‑path signal conditioning
• Isolation：500 VAC channel‑to‑channel and channel‑to‑logic galvanic isolation, suppress plant ground‑loop interference
• Interface：Two pluggable barrier‑style screw terminal blocks (24 terminals each); multiple multi‑pin ribbon‑cable connectors for processor interconnection
• PCB treatment：CFD‑revision conformal coated for dust‑moisture‑corrosion resistancehoneywell-…
• On‑board protection：ESD protection, MOV surge suppression, over‑voltage / over‑current channel protection, sensor open‑/short‑circuit fault detection
• Compatibility note：Cannot run standalone; must match Mark VIe VTUR / PTUR processor pack; full measurement‑loop and protection‑signal simulation test mandatory after replacement.

Environmental Specifications

• Operating temperature：‑30 ℃ ~ +65 ℃
• Storage temperature：‑40 ℃ ~ +85 ℃
• Relative humidity：5%‑95% non‑condensing
• Installation location：Indoor turbine control cabinet
• EMC compliance：IEC 61000‑6‑2
• Certifications：CE

Mechanical Data

• Weight：approx 1.0 kg
• Dimension：330 mm × 178 mm × 55 mm
• Handling note：ESD‑sensitive PCB; multi‑type high‑precision measurement circuit, anti‑static wrist‑strap mandatory during handling
• Recommended wire cross‑section：0.75‑2.5 mm² shielded twisted‑pair copper cable for speed‑sensor, temperature‑sensor and protection‑contact wiring
• Terminal tightening torque：0.6‑1.0 N·m

Main Functions

1. Pluggable barrier screw‑terminal field termination for magnetic‑pickup speed sensors, thermocouple/RTD temperature sensors, pressure transmitters, hard‑wired protection contact signals and flame‑detector return‑path signals.
2. Condition high‑frequency overspeed pulse signals, thermocouple millivolt weak signals and 4‑20 mA transmitter analog signals, transmit conditioned signals to VTUR / PTUR turbine‑protection processor pack.
3. Galvanic isolation between control rack and field‑side devices, suppress turbine‑hall high‑EMI transient interference.
4. On‑board channel self‑diagnosis: detect magnetic‑pickup open‑circuit / short‑circuit, thermocouple burnout, RTD fault, ribbon‑cable link failure; upload fault alarm to turbine main controller.
5. LED status indication:
   • Green LED：Board auxiliary power normal
   • Yellow LED：Ribbon‑cable link communication active
   • Red LED：Sensor‑channel fault / link‑failure alarm

Installation & Wiring Requirements

1. Cut off rack power supply before replacement. Hot‑swap is forbidden. Strict anti‑static protection when handling PCB board.
2. Secure panel mounting firmly; ensure all multi‑pin ribbon‑cable connectors fully locked without loose contact.
3. Field‑sensor wiring strictly follow GE Speedtronic Mark VIe wiring manual; analog and speed‑signal cables adopt shielded twisted‑pair, strictly separated from high‑power cables; connect shielding to dedicated ground terminal.
4. Complete protective grounding according to GE Speedtronic system specification.
5. After replacement: verify ribbon‑cable link status, check speed‑pulse signal quality, verify temperature and analog measurement reading, simulate protection‑contact input condition before commissioning.
6. Replacement note: For TMR triple‑redundant system application, hardware consistency of related processor packs shall be verified; full measurement‑loop and protection‑signal simulation test mandatory before unit put‑into‑service.