GE IS200TPROS1CBB TPRO‑S1 Conformal‑Coated Emergency Protection Terminal Board

Description

Hardware & Electrical Specifications

• Model：IS200TPROS1CBB
• Part Number：IS200TPROS1CBB
• Module Type：TPRO‑S1 Conformal‑Coated Emergency Protection Terminal Board
• Mounting：Cabinet panel mounting inside turbine control cabinet
• Power supply：24/28 VDC auxiliary power supplied by VPRO protection processors
• Input channels： ‑ Multi‑channel MPU magnetic‑pickup high‑frequency pulse inputs for overspeed monitoring ‑ Multi‑channel thermocouple input (J, K, T, E type) for exhaust and bearing temperature ‑ Analog input channels for process protection transmitters ‑ Discrete contact inputs for ESD emergency shutdown and backup protection contacts
• Isolation：Built‑in isolation transformers, high galvanic isolation to reject plant ground‑loop interference
• Interface：Removable barrier‑type screw terminal blocks for field wiring; multiple multi‑pin ribbon connectors for VPRO processor interconnection
• PCB treatment：S‑type conformal coated (CBB revision) for dust‑moisture‑corrosion resistance
• On‑board protection：ESD protection, MOV surge suppression, transient absorption circuit for safety‑signal loops
• Compatibility note：Cannot run standalone; must match Mark VI VPRO protection processor; TMR triple‑redundant system requires three‑board consistency verification; overspeed‑protection simulation test mandatory after replacement.

Environmental Specifications

• Operating temperature：‑40 ℃ ~ +70 ℃
• 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 1.45 kg
• Dimension：330 mm × 178 mm × 55 mm
• Handling note：ESD‑sensitive PCB; safety‑critical speed‑measuring circuit, anti‑static wrist‑strap mandatory during handling
• Recommended wire cross‑section：0.75‑2.5 mm² shielded twisted‑pair copper / dedicated thermocouple extension cable for field sensor wiring
• Terminal tightening torque：0.6‑1.0 N·m

Main Functions

1. Removable screw‑terminal field termination for turbine safety‑related signals: MPU speed‑pickup pulse signals, exhaust thermocouple temperature signals, generator analog protection signals, emergency shutdown ESD contact signals.
2. Built‑in isolation transformers provide galvanic isolation between plant field wiring and VPRO protection logic, eliminate ground‑loop and high‑EMI turbine‑hall interference.
3. Condition high‑frequency speed pulse, millivolt‑level thermocouple and discrete trip signals, transmit to three VPRO protection processors for emergency overspeed EOS calculation, over‑temperature protection and TMR voting‑logic processing.
4. On‑board signal conditioning for weak thermocouple and high‑frequency MPU pulse signals.
5. On‑board channel self‑diagnosis: detect MPU sensor open‑/short‑circuit, thermocouple fault, field‑loop abnormal status, report fault alarm to turbine main controller.
6. On‑board self‑diagnosis: detect auxiliary power loss and ribbon‑cable link failure.
7. LED status indication: ‑ Green LED：Terminal‑board auxiliary power normal ‑ Yellow LED：Signal input & ribbon‑cable link communication active ‑ Red LED：Field‑channel fault / overspeed condition / link communication loss 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 VI wiring manual: MPU speed cables and thermocouple cables must use dedicated shielded extension cables, 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 raw MPU pulse signal and thermocouple temperature reading, simulate overspeed and protection‑trip input, validate VPRO protection‑logic response before commissioning.
6. Replacement note: For TMR triple‑redundant safety‑loop application, three‑set IS200TPROS1CBB channel consistency must be verified; full emergency‑protection‑loop simulation test mandatory after swap.