About MDMF502L1H6M Panasonic A6 5000W Motor + BRK , Torque Nm - 23.9, RPM - 2000
The Panasonic MDMF502L1H6M is the 5.0 kW Middle-Inertia AC servo motor equipped with an integrated holding brake. It is the "heavy-duty safety" workhorse of the A6 series, designed for high-load applications that require both massive torque and vertical axis security.
Function
- Fail-Safe Vertical Locking: The integrated electromagnetic brake's primary job is to lock the shaft when power is cut. This prevents massive machine axes (like a 150kg+ spindle or a vertical lift) from falling due to gravity during a power failure or E-stop.
- High-Torque Stability: The "Middle-Inertia" rotor provides a physical balance for high-mass loads, preventing the vibration and "shaking" that occurs with lighter motors on heavy machines.
- Surgical Precision: Despite its brute force, the 23-bit encoder tracks position within 8.38 million pulses per turn for micron-level accuracy.
Technical Specifications
| Feature |
Specification |
| Rated Output |
5000 W (5.0 kW) |
| Rated Torque |
23.9 Nm (Peak: 71.6 Nm) |
| Rated / Max Speed |
2000 RPM / 3000 RPM |
| Brake Torque |
25.0 Nm or more (Static friction) |
| Brake Voltage |
24 V DC (Power-off engaged) |
| IP Rating |
IP67 (Dust-tight and waterproof) |
Physical Dimensions & Weight (Inches & Lbs)
This motor is a significant piece of hardware due to the 5kW stator, middle-inertia rotor, and the large brake assembly.
- Weight: Approximately 50.04 lbs (22.7 kg).
- Width & Height (Flange): 6.93 inches (176 mm square).
- Length (Total Body): Approximately 10.04 inches (255 mm).
- Shaft Diameter: 1.378 inches (35 mm).
Compatible Drivers
This motor requires the high-current H-Frame A6 drivers:
- Multifunction: MHDLTB3SF
- Basic / Position: MHDLNB3SE
- Network (EtherCAT): MHDLNB3NE
The primary function of the Panasonic MDMF502L1H6M is to provide maximum holding power and high-torque stability for the heaviest industrial axes. It is a heavy-duty powerhouse designed to control massive loads safely.
1. Fail-Safe Vertical Locking (Holding Brake)
The "H" in the model indicates a built-in electromagnetic holding brake.
- Gravity Defense: Its most critical job is to prevent massive machine parts (like a heavy cutting head on a large CNC or a vertical industrial lift) from falling when power is lost.
- Automatic Locking: The brake is a "power-off" type; it is automatically locked by internal springs. You must apply 24V DC to release it.
- Strong Holding Force: With a static torque of 25.0 Nm, the brake is stronger than the motors rated running torque (23.9 Nm), ensuring the load remains "frozen" even under high stress.
2. High-Torque Force (Heavy Duty Output)
This motor focuses on brute strength to move high-mass machinery.
- Constant Push: It delivers a steady 23.9 Nm of torque (surging to a massive 71.6 Nm peak). This allows it to move heavy loads that require massive force to start, such as large-diameter ball screws or heavy gearboxes.
- Applications: It is the standard choice for large-scale CNC gantries, heavy material handling, and industrial spinning/winding machinery.
3. "Middle-Inertia" for Load Matching
The internal rotor is physically heavier to act as a mechanical stabilizer.
- Stability: Moving a massive object with a lightweight motor causes "hunting" (vibration as the motor tries to find its position). This motor's middle-inertia rotor provides a better balance for high-mass loads, leading to smooth, steady motion.
- Shock Absorption: It absorbs mechanical feedback from the load, protecting the internal components during the rapid starts and stops of heavy parts.
4. Surgical Precision
Despite its size, it maintains extreme accuracy:
- 23-bit Feedback: It tracks its position within 8,388,608 steps per turn. This ensures that even when moving a load weighing several hundred kilograms, the machine can land within microns of its target.
- 3.2 kHz Response: It communicates with its driver 3,200 times per second to instantly correct any deviations in speed or position.
5. Rugged Industrial Protection
- IP67 Rating: It is functionally sealed against dust, oil mist, and water splashes, making it a reliable component for harsh factory floors where coolant and metal shavings are present.