GE IS200JPDMG1ACC JPDM Jumper‑Power‑Distribution Module

Description

Hardware & Electrical Specifications

• Model：IS200JPDMG1ACC
• Part Number：IS200JPDMG1ACC
• Module Type：JPDM Jumper‑Power‑Distribution Module
• Form factor：Single‑slot plug‑in board for Mark VI I/O rack
• Power input：Redundant 28 V DC system power input, max total current 25 A
• Output bus：Three independent R / S / T I/O power bus branches, each branch with individual fuse protection
• On‑board resource：Multiple jumper groups for bus‑mode configuration; fuse status feedback circuit for PPDA diagnostic interface
• Backplane interface：Multi‑pin edge connector for rack back‑plane power and status‑signal interconnection
• PCB treatment：Conformal coated for dust‑moisture‑corrosion resistance
• On‑board protection：Branch fuse over‑current protection, ESD protection, LC filter circuit for power‑rail noise suppression
• Compatibility note：Cannot run standalone; must match Mark VI I/O rack architecture and PPDA power‑diagnosis module; jumper setting must be restored exactly after replacement; fuse rating must conform to original design to avoid equipment damage。

Environmental Specifications

• Operating temperature：‑40 ℃ ~ +70 ℃
• Storage temperature：‑40 ℃ ~ +85 ℃
• Relative humidity：5%‑95% non‑condensing
• Installation location：Inside turbine control cabinet I/O rack
• EMC compliance：IEC 61000‑6‑2
• Certifications：CE, Class1 Div2 hazardous‑area compliance

Mechanical Data

• Weight：approx 1.05 kg
• Dimension：225 mm × 215 mm × 30 mm
• Handling note：ESD‑sensitive PCB, anti‑static wrist‑strap mandatory during handling
• Recommended wire cross‑section：1.5‑2.5 mm² copper cable for main power‑input wiring
• Terminal tightening torque：0.6‑1.0 N·m

Main Functions

1. Accept redundant 28 V DC power supply from system power source for turbine I/O rack.
2. Distribute power to R/S/T three independent I/O power buses for each I/O pack and field terminal boards.
3. Independent fuse protection for each output branch, isolates short‑circuit fault and prevents fault propagation across rack.
4. On‑board jumpers configure bus operating mode for simplex or TMR triple‑redundant system architecture.
5. Collect fuse‑blow and power‑rail status, send diagnostic signal to PPDA module for system fault alarm.
6. Hardware self‑diagnosis: detect input power loss, branch fuse failure, report fault status to turbine controller.
7. Front‑panel LED status indication:
   • Green LED：Board main power‑supply normal
   • Yellow LED：Power‑bus output active
   • Red LED：Branch fuse blown / input‑power abnormal fault

Installation & Wiring Requirements

1. Cut off rack power supply before replacement. Hot‑swap is forbidden. Strict anti‑static protection when handling PCB board.
2. Insert module fully into designated rack slot, ensure reliable locking of back‑plane edge connector.
3. Restore on‑board jumper configuration and each branch fuse rating strictly consistent with original settings before power‑on.
4. Main power‑input wiring strictly follow GE Mark VI wiring manual; separate power cables from weak‑signal analog cables.
5. Complete protective grounding according to GE Speedtronic system specification.
6. After replacement: verify each R/S/T bus output voltage, check PPDA power‑diagnosis alarm status, perform full‑I/O‑rack power‑on test before commissioning.
7. Replacement note: Jumper positions and fuse rating cannot be arbitrarily modified; wrong setting will cause I/O module power‑supply failure or hardware burnout.