Yaskawa JRMSI-120XBP01200

Core Technical Specifications & Performance Parameters

1. Rack Slot Capacity Support

   Accommodate maximum 12 independent servo drive modules per backplane board

2. Main Power Distribution Rating

   Three-phase AC input voltage range 200 VAC – 480 VAC; total maximum distribution current 120 A continuous

3. Backplane Signal Bus Performance

   Differential high-speed motion control bus, signal transmission refresh cycle 250 μs, isolation voltage 2000 VAC between power distribution circuit and control signal circuit

4. Auxiliary Logic Power Distribution

   Integrated 24 VDC logic power bus distribution for all rack control and communication modules

5. Overcurrent Protection Rating

   Embedded bus current monitoring circuit with hardware fuse overcurrent protection per slot

6. Environmental Operating Parameters

   Operating temperature 0 °C ~ +55 °C; non-condensing humidity 5% – 90%; vibration resistance IEC 60068-2-6

7. Physical Dimension & Weight

   Full rack width backplane PCB: 600 mm (width) × 320 mm (height) × 15 mm (depth); net weight 2.7 kg

Material Composition & Structural Features

• Main backplane substrate: Extra-thick copper layer FR4 PCB to carry high three-phase power current without excessive voltage drop
• Connector components: Gold-plated multi-layer edge card slots for servo drive module insertion; high-current copper bus bar terminals for main three-phase AC power input
• Internal structure separation: Physical isolation partition between high-current power distribution zone and low-voltage control signal bus zone to eliminate electromagnetic crosstalk
• Protection hardware: Replaceable slot-by-slot current limiting fuses, surface-mount surge suppression TVS diodes on all signal bus lines
• Mounting structure: Pre-drilled mounting holes for secure fixation inside standard Yaskawa JRMSI industrial rack cabinet

Working Principle

Application Scenarios

• Automotive automated production welding, painting multi-servo production lines
• Lithium ion battery factory full-automatic winding, slitting, stacking high-speed multi-axis equipment
• Large gantry CNC machine tools, automated optical inspection AOI multi-axis positioning platforms
• Packaging industry high-speed blister filling, carton forming multi-servo synchronous production lines

Installation Requirements

1. Install horizontally as base layer inside Yaskawa JRMSI standard industrial rack cabinet, fixed with stainless steel bolts to resist production line vibration
2. Main three-phase power input cable copper cross-section minimum 16 mm² for full 12-slot maximum current load
3. Maintain 50 mm vertical clearance above backplane board for natural heat dissipation of high-current power traces
4. Cabinet must be equipped with top exhaust cooling fan to control internal rack temperature below 55 °C under full load
5. Rack main PE ground bus connected directly to backplane dedicated grounding terminal with 6 mm² copper ground wire

Operation & Maintenance Precautions

1. Complete full rack main power shutdown before any servo drive insertion/removal operation; live hot plug forbidden to avoid backplane trace burnout
2. Replace blown slot fuses only with Yaskawa original specified current rating fuses; oversized fuses cause fire hazard
3. Inspect all power terminal tightening torque every 6 months during scheduled equipment maintenance to prevent loose connection overheating
4. Do not modify backplane PCB wiring traces or add external power taps without official factory approval
5. Keep rack cabinet door fully closed during operation to prevent conductive metal dust accumulation on backplane circuit surface