WG2/SLEW Slew Signal Processing PCB Board for Crane Slewing Mechanism Control

Product Overview

The WG2/SLEW signal processing board is a core PCB assembly built for crane slewing mechanism control and load moment protection systems. It functions as the dedicated signal processing node between the rotary angle sensor and the crane’s main vehicle control system: it receives raw angle signals from the field sensor, carries out professional conditioning and calculation, and outputs standardized slewing angle data to the upper control architecture.

This control board adopts industrial-grade circuit design and component selection, paired with an onboard aluminum heat dissipation structure. It delivers stable and reliable performance under long continuous operation, jobsite vibration, and complex electromagnetic interference, and serves as a critical component to ensure accurate crane slewing angle monitoring and valid load moment control.

Core Working Functions

• Accepts both analog and digital input signals from the rotary angle sensor mounted on the slewing gear

• Performs real-time signal filtering, zero calibration and linear compensation to eliminate data drift caused by jobsite vibration and electrical noise

• Delivers processed, high-precision slewing angle data to the crane’s load moment indicator (LMI) system and main controller

• Supports on-site parameter debugging, status monitoring and firmware update via reserved dedicated ports

Interface Configuration

CAN-IN Port
Standard CAN bus communication interface for stable, high-speed data transmission between the board and the vehicle main control system. It features strong anti-interference capability and fits long-distance signal transmission in complex industrial environments.

Serial Debug Port
Reserved serial interface for equipment maintenance, used by service technicians for on-site fault troubleshooting, real-time signal data reading and operating status monitoring.

openProg Programming Port
Dedicated program flashing interface that supports firmware burning, function parameter configuration and software version upgrade without removing the board from equipment, reducing later maintenance difficulty and downtime.

Key Design Features

• Onboard integrated aluminum heat sink structure, effectively lowering core chip operating temperature and ensuring long-term stable operation

• Optimized circuit layout with high electromagnetic compatibility design, adapted to harsh electrical environments of construction machinery

• Standardized mounting hole design for direct replacement of original equipment boards without secondary modification

• Full industrial-grade electronic components with wide operating temperature range and impact resistance, meeting outdoor construction site requirements

Application Scenarios

This WG2 slew signal processing control board fits the electrical control systems of various construction lifting equipment, mainly including:

• Truck mounted cranes

• All terrain cranes

• Crawler cranes

• Other slewing-type engineering machinery with load moment safety control systems