GE IS200SAMBH1ABA SAMB Simplex Analog Multiplexer Terminal Board

Description

Hardware & Electrical Specifications

• Model：IS200SAMBH1ABA
• Part Number：IS200SAMBH1ABA
• Module Type：SAMB Simplex Analog Multiplexer Terminal Board
• Mounting：DIN‑rail mounting bracket installed inside turbine control cabinet
• Power supply：+24 V DC auxiliary power supplied by I/O pack through ribbon cable
• Signal channels：Multi‑channel analog AI/AO signal multiplexing, support 4‑20 mA / 0‑10 V transducer signals
• Interface：Multi‑group screw terminal blocks for field wiring; high‑density IDC ribbon‑cable connector connecting to I/O pack
• Signal switching：Analog multiplexer switching time less than 10 μs
• PCB treatment：Conformal coated for dust‑moisture‑corrosion resistance
• On‑board protection：ESD protection, surge suppression, EMI RC filter circuit for analog signal loops
• Compatibility note：Cannot run standalone; must match corresponding Mark VI / Mark VIe analog I/O pack; ribbon cable must be fastened reliably; full‑channel signal calibration test required after replacement。

Environmental Specifications

• Operating temperature：‑30 ℃ ~ +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 1.10 kg
• Dimension：231 mm × 143 mm × 55 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 field‑transducer wiring
• Terminal tightening torque：0.6‑1.0 N·m

Main Functions

1. Provide screw‑terminal field termination for analog transmitters, valve position feedback and analog actuator control signals.
2. Multiplex and route multi‑channel analog signals between field devices and I/O pack via high‑density ribbon‑cable interface.
3. On‑board EMI filter suppress high‑frequency industrial interference for long‑distance field wiring.
4. Signal conditioning and surge protection to improve measuring accuracy in high‑EMI power‑plant environment.
5. Channel fault diagnosis: detect loop open‑circuit, short‑circuit fault, transmit fault status to main controller through I/O pack.
6. LED status indication:
   • Green LED：Terminal‑board auxiliary power normal
   • Yellow LED：Ribbon‑cable link communication active
   • Red LED：Field‑channel loop fault / link abnormal 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 connector fully locked without loose contact.
3. Field transducer wiring strictly follow GE Mark VI / Mark VIe wiring manual; analog signal cables must be shielded twisted‑pair and separated from high‑power cables; connect shield to dedicated ground terminal.
4. Complete protective grounding according to GE Speedtronic system specification.
5. After replacement: verify ribbon‑cable link status, calibrate each analog channel reading, validate transducer feedback before commissioning.
6. Replacement note: TMR redundant system requires three‑set SAMB hardware consistency verification; full‑channel analog function test is mandatory after swap.