​DHR NLS3000 NLC System (Navigation Control System)

The speed measurement range is 0-10m/s (effective range of dynamic positioning), and when the speed measurement accuracy exceeds 10m/s by ± 0.1%, it automatically switches to "rough positioning mode"

Attitude measurement inclination range: -15 °~+15 ° (roll/pitch), accuracy ± 0.05 °; Heading angle range: 0-360 °, accuracy ± 0.1 °, requires gyroscope module (optional NLC-GYRO-01)

Response delay sensor data acquisition:<10ms; control command output:<100ms to ensure real-time dynamic control

The path storage capacity is up to 100 paths, and a single path can support up to 1000 coordinate points. Coordinate points can be manually entered through HMI or upper computer

2. Electrical and environmental parameters

Parameter category specification value precautions

Power supply requirements: Main controller: 24V DC ± 10%, maximum current 2A; Sensor module: 12-24V DC ± 10%, total power consumption ≤ 15W, independent power supply circuit is required to avoid sharing power supply with high-power equipment (such as motors)

Communication interface - Industrial Ethernet: EtherNet/IP, Profinet (transmission rate 100Mbps)

-Serial communication: RS485 (baud rate 9600-115200bps, supporting Modbus RTU) communication cable needs to use shielded wire to avoid electromagnetic interference

Protection level main controller/sensor: IP65 (dustproof, waterproof); HMI: IP64 (dustproof, splash proof). It is prohibited to immerse or expose to corrosive environments for a long time (such as maritime scenes with high salt spray concentration that require additional protection)

Environmental adaptability working temperature: -20~+60 ℃; Storage temperature: -40~+85 ℃; Relative humidity: 0%~95% (no condensation). It is recommended to preheat for 30 minutes before starting in a low-temperature environment (<-10 ℃)

EMC compatibility complies with EN 61000-6-2 (industrial environment immunity) and EN 61000-6-3 (residential emission limits). When installing, it is necessary to stay away from strong electromagnetic interference sources (such as frequency converters and high-voltage cables)

Installation and commissioning specifications

1. Pre installation requirements

Environmental inspection: Confirm that the installation location has no strong electromagnetic interference and no severe vibration (vibration frequency ≤ 50Hz, amplitude ≤ 0.5mm); Outdoor installation requires reserved waterproof junction box positions, and sensor installation points should have a wide field of view (GPS receivers should be unobstructed, and LiDAR should avoid obstacles blocking the measurement path).

Qualification requirements: Installation personnel must have industrial automation equipment installation qualifications and be familiar with electrical wiring specifications (such as EN 60204-1); High voltage wiring (such as power module input) must be operated by a certified electrician.

Tools and spare parts: A torque wrench (recommended for fixing sensors with a torque of 2-3Nm), shielded cables (communication cables recommended to use CAT5e or higher specifications), and waterproof sealant (for outdoor wiring protection) need to be prepared.

2. Key points for installing core components

Common Error Avoidance in Component Installation Requirements

The main controller is installed in the equipment control cabinet, with a distance of ≥ 10cm from the heating element (such as the frequency converter); the fixed bracket needs to be grounded (grounding resistance ≤ 4 Ω) to avoid installation at the bottom (prone to water accumulation) or top (greatly affected by temperature) of the control cabinet

The GPS receiver is installed at the highest point of the device, with a horizontal deviation of ≤ 5 °; Antenna cable length ≤ 10m, avoid bending (bending radius ≥ 50mm). It is prohibited to install it under metal obstructions (such as equipment frames), otherwise it will cause signal loss

The installation height of the laser radar should be level with the measurement target (such as the positioning reflector), and the measurement path should be unobstructed; Avoid installing in areas with severe equipment vibration (such as near motors) at a distance of ≥ 50cm from moving parts, as it may affect measurement accuracy

The HMI is installed within the operator's field of view, with the touch screen at an angle of 30 °~45 ° to the operating table; The emergency stop button should be easily accessible (≤ 50cm from the operating position) and should not be installed within the range of the device's movement trajectory to prevent collision damage

3. Debugging process (key steps)

Check before powering on: Confirm that the wiring is correct (the positive and negative poles of the power supply are not reversed, and the shielding layer of the communication line is grounded), tighten all terminal screws (recommended torque 0.5-1Nm);

System initialization: When the power is turned on, the main controller automatically enters initialization mode (HMI displays "Initiat"), completes self-test after about 30 seconds, and displays "READY" if there are no faults; If the self-test fails, the HMI will display a fault code (such as "E01" indicating abnormal GPS signal), and the corresponding component needs to be checked;