GE IS200SRTDH2ACB SRTD Simplex RTD Terminal Board

Description

Hardware & Electrical Specifications

• Model：IS200SRTDH2ACB
• Part Number：IS200SRTDH2ACB
• Module Type：SRTD Simplex RTD Terminal Board
• Mounting：DIN‑rail bracket installation inside turbine control cabinet
• Power supply：+24 V DC auxiliary power supplied by matching I/O pack, typical current 0.3A
• Input channels：8‑channel RTD input, configurable for 2‑wire /3‑wire sensor mode by on‑board jumpers
• Supported sensor：PT100, PT1000 resistance temperature detector
• Galvanic isolation：2500V RMS channel‑to‑ground isolation rating
• Interface：Screw terminal blocks for field RTD wiring; dual high‑density IDC ribbon‑cable connectors connecting to PRTD I/O pack
• PCB treatment：Conformal coated for dust‑moisture‑corrosion resistanceAX Control…
• On‑board protection：ESD protection, surge suppression, RC EMI filter circuit for temperature signal loop
• Compatibility note：Cannot run standalone; must match PRTD RTD I/O pack; jumper wiring‑mode setting must restore after replacement; full‑channel temperature calibration test required 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 0.45 kg
• Dimension：178 mm × 159 mm × 45 mm
• Handling note：ESD‑sensitive PCB, anti‑static wrist‑strap mandatory during handling
• Recommended wire cross‑section：0.75‑2.5 mm² shielded twisted‑pair copper cable for RTD sensor wiring
• Terminal tightening torque：0.6‑1.0 N·m

Main Functions

1. Screw‑terminal field termination for turbine RTD temperature sensors: bearing metal temperature, winding temperature, exhaust temperature, lube‑oil temperature signals.
2. Support 2‑wire /3‑wire RTD sensor configuration, suppress lead‑wire resistance measuring error.
3. Signal filtering and surge protection for long‑distance field wiring under high‑EMI power‑plant environment.
4. Transmit conditioned resistance‑value signals to PRTD I/O pack via ribbon‑cable link for temperature conversion calculation.
5. On‑board channel self‑diagnosis: detect RTD sensor open‑circuit, short‑circuit fault, report fault status to main controller.
6. On‑board self‑diagnosis: detect terminal‑board auxiliary power loss and ribbon‑cable link failure.
7. LED status indication:
   • Green LED：Terminal‑board auxiliary power normal
   • Yellow LED：Ribbon‑cable link communication active
   • Red LED：Field‑channel fault / 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 DIN‑rail mounting bracket firmly; ensure IDC ribbon‑cable connectors fully locked without loose contact.
3. Restore on‑board jumper (2‑wire /3‑wire mode) strictly consistent with original configuration before field wiring.
4. RTD sensor wiring strictly follow GE Speedtronic wiring manual; temperature signal cables adopt shielded twisted‑pair, separate from high‑power cables; connect shielding to dedicated ground terminal.
5. Complete protective grounding according to GE Speedtronic system specification.
6. After replacement: verify ribbon‑cable link status, calibrate each temperature channel reading, validate over‑temperature alarm response before commissioning.
7. Replacement note: TMR redundant system requires three‑set SRTD channel consistency verification; full‑channel temperature function test mandatory after swap.