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XCMG Crane HC4900 Load Moment Limiter Main Board
Core Advantages Industrial-Grade Anti-Interference Design：On-board EMI filter circuit adapts to the complex electromagnetic environment of cranes, avoiding data abnormalities caused by vibration and voltage fluctuations. Traceable Key Components：Core parts such as capacitors and chips are so...
Description
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Core Advantages
Industrial-Grade Anti-Interference Design：On-board EMI filter circuit adapts to the complex electromagnetic environment of cranes, avoiding data abnormalities caused by vibration and voltage fluctuations.
Traceable Key Components：Core parts such as capacitors and chips are sourced from leading domestic industrial brands, offering a 30% longer lifespan than aftermarket alternatives.
Plug-and-Play Installation：Pre-loaded with calibration parameters for the corresponding crane model. Simply reinstall into the host unit for immediate operation, no professional recalibration equipment needed.
Model Compatibility Table
| Main Board Model | Compatible Crane Models | Compatible LML System | Corresponding PCB Board Number |
| HC4900-V1 | XCMG QY25K, QY25K5, QY30K | Hirschmann HC4900 | XG-PCB-202103 |
| HC4900-V2 | XCMG QY50K, QY50K-II, QY70K | Hirschmann HC4900 | XG-PCB-202105 |
| HC4900-V3 | XCMG QY100K, QY130K | Hirschmann HC4900 | XG-PCB-202108 |
Core Specifications Table
| Specification Item | Specification Value |
| Rated Operating Voltage | DC 24V (±10%) |
| Operating Temperature Range | -40℃ ~ +85℃ |
| Protection Grade | IP65 (main board itself, requires host enclosure) |
| Core Processor | 32-bit Industrial MCU |
| Data Sampling Frequency | 100Hz |
| Communication Interface | CAN Bus + RS485 |
| On-board Storage Capacity | 256KB Program Storage + 128KB Data Storage |
| Anti-Interference Level | IEC 61000-4-2 ESD Level 4 |
Installation & After-sales Notes
Pre-Installation Check：Please confirm that your crane model and original main board PCB number fully match the table above to avoid incorrect installation.
Operation Guidelines：Disconnect the crane's main power supply during installation to prevent short circuits and board damage. Torque the fixing screws to within 2.5N·m.
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