GE IS200TRLYH1BGF TRLY Relay Output Terminal Board,

Description

Hardware & Electrical Specifications

• Model：IS200TRLYH1BGF
• Part Number：IS200TRLYH1BGF
• Module Type：TRLY Relay Output Terminal Board
• Mounting：Cabinet panel mounting inside turbine control cabinet
• Logic power supply：24 VDC auxiliary power supplied by TRLY processor pack
• Relay quantity：12 channels Form‑C (SPDT) electromechanical relays
• Relay contact rating：5 A @250 VAC / 30 VDC resistive load; supports 125 VDC trip bus and 24 VDC alarm bus field voltage
• Isolation：1500 Vrms galvanic isolation between relay coil and contact side, suppress plant ground‑loop interference
• Response time：Relay actuation ≤10 ms
• Interface：Barrier‑type screw terminal blocks for field device wiring; multiple 50‑pin IDC ribbon‑cable connectors for TRLY processor interconnection; JA1 for simplex, JR1‑JS1‑JT1 for TMR redundant configuration
• PCB treatment：BGF enhanced conformal coated for dust‑moisture‑corrosion resistance
• On‑board protection：ESD protection, MOV surge suppression, snubber circuit for inductive load, relay coil current monitoring for fault diagnosis
• Compatibility note：Cannot run standalone; must match Mark VI / Mark VIe TRLY processor pack; full‑channel relay action 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 1.30 kg
• Dimension：178 mm × 330 mm × 45 mm
• Handling note：ESD‑sensitive PCB; electromechanical relay circuit, anti‑static wrist‑strap mandatory during handling
• Recommended wire cross‑section：0.75‑2.5 mm² shielded twisted‑pair copper cable for field solenoid and annunciator wiring
• Terminal tightening torque：0.6‑1.0 N·m

Main Functions

1. Screw‑terminal field termination for external field devices: solenoid valves, alarm annunciator lamps, auxiliary interlock relays and partial protection loop equipment.
2. Convert low‑voltage logic commands from TRLY processor into dry‑contact relay switching output, realize electrical isolation between control rack and plant field side.
3. Relay coil current real‑time monitoring; compare actual excitation current with command value, detect relay coil open‑circuit or abnormal condition.
4. Snubber absorption circuit suppresses reverse electromotive force of inductive loads, extend relay contact service life.
5. On‑board self‑diagnosis: detect auxiliary power abnormal, ribbon‑cable link communication failure and relay‑circuit fault, upload fault alarm to turbine main controller.
6. LED status indication:
   • Green LED：Board auxiliary power normal
   • Yellow LED：Ribbon‑cable link communication active
   • Red LED：Relay‑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 50‑pin IDC ribbon‑cable connectors fully locked without loose contact.
3. Field device wiring strictly follow GE Speedtronic Mark VI wiring manual; adopt shielded twisted‑pair 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, test every relay pull‑in and drop‑out action, validate field‑device response before commissioning.
6. Replacement note: For TMR triple‑redundant system application, hardware consistency of related packs shall be verified; full‑channel relay‑output simulation test mandatory before unit put‑into‑service.