About MHDLTF3NF - A6N Panasonic A6 22000W Driver
The Panasonic MHDLTF3NF is the A6N Series (Network Type) high-capacity servo driver designed specifically for 22 kW (22,000 W) motors. It uses the heavy-duty H-Frame chassis and operates via Panasonics proprietary RTEX (Realtime Express) high-speed network.
Core Technical Specifications
- Rated Power: 22,000 W (22 kW).
- Rated Current Output: 96.0 A (rms).
- Communication: RTEX (100 Mbps Ethernet-based).
- Input Voltage: 3-phase 200 V to 240 V AC.
- Frame Size: H-Frame.
Physical Specifications (H-Frame)
This is a large, heavy driver designed to be the "anchor" of a high-power electrical cabinet.
| Dimension |
Measurement (Metric) |
Measurement (Imperial) |
| Weight |
14.2 kg |
31.3 lbs |
| Width |
210 mm |
8.27" |
| Height |
300 mm |
11.81" |
| Depth |
260 mm |
10.24" |
Key Functions
- Network Motion Hub: Instead of dozens of signal wires, it functions as a node on an RTEX loop. It receives all position, speed, and torque commands through a single Cat5e Ethernet cable.
- Massive 96A Current Management: It is engineered to safely switch the huge currents required to generate 140 Nm of torque. It features dual high-airflow fans to handle the heat of 22 kW operation.
- 3.2 kHz Response & Precision: It processes the 23-bit encoder feedback at ultra-high speeds, ensuring that even a multi-ton load is positioned with micron-level accuracy.
- Safe Torque Off (STO): Includes hardware-level safety terminals to instantly cut the 22 kW of motor power while maintaining network communication.
The Panasonic MHDLTF3NF (A6N Series) functions as a Network-Managed High-Power Inverter. It acts as the digital gateway between an RTEX (Realtime Express) motion network and the massive electrical demand (96 Amps) of a 22 kW motor.
1. High-Speed Network Node (RTEX)
The primary function of this "NF" model is to act as a slave on a specialized Ethernet loop.
- Synchronized Execution: It receives digital commands from a master controller (like a Panasonic FP7) every 0.0625 milliseconds. This allows it to sync with other high-power axes for complex movements like 3D contouring or synchronized heavy lifting.
- Simplified Topology: It functions using a single RJ45 cable to receive all instructions. This replaces the massive bundle of wires that would normally be required to control a 22 kW system.
2. Extreme Current Control (96 Amps)
- Power Delivery: Its main "job" is to safely switch 3-phase power to deliver 96.0A to the motor. It functions to ensure the motor can reach its 140 Nm rated torque and 350 Nm peak torque without destabilizing the factory's electrical grid.
- Thermal Protection: Because 22 kW generates significant heat, the driver functions to monitor its own internal temperature and the motors status, automatically adjusting output or triggering alarms to prevent a meltdown.
3. Precision Processing for Heavy Loads
- 23-bit Feedback Loop: It functions to translate 8 million pulses per revolution from the motor's encoder into actionable data. Even when moving a load weighing several tons, the driver can correct a position error in less than 1/3000th of a second.
- Inertia Ratio Detection: It functions to "sense" the weight of the machine it is moving. If the load changes, the driver automatically updates its internal math (gains) to keep the motion smooth and prevent the machine from "shaking."
4. Advanced Maintenance & Diagnostics
- Digital Health Stream: Unlike pulse-type drivers, this network model functions to send constant "health reports" back to the PLC. It reports current consumption, friction levels, and life expectancy of the internal cooling fans.
- Oscilloscope Function: When paired with PANATERM software over the network, it functions as a digital oscilloscope, allowing you to "see" the torque and speed waves to troubleshoot mechanical issues.
5. Hardware Safety (STO)
- Safe Torque Off: It has a dedicated hardware function to cut the 96A current to the motor. This functions to ensure the motor is physically unable to produce torque during a safety breach, even if the network software is still sending "Run" commands.
Summary: The MHDLTF3NF is the "Smart Brain" for the heaviest 22 kW applications. It is the preferred choice for multi-axis machines where you want to minimize wiring and maximize data feedback.