DMC50720-AC Danaher
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The Danaher DMC50720-AC is a motion controller in the DMC Motion Controllers series, supporting a continuous current of 7 Amps and continuous power output of 3.4 kW. The device features a 3x400 VAC input voltage, dynamic brake current of 18.7 Amps, and an efficiency rating of 95 percent. It measures 234 mm in height, 76 mm in width, and 227 mm in depth, and carries an IP20 protection rating.
Internal Product Review
The DMC50720-AC is a Danaher DMC motion controller designed for efficient industrial axis control, with 3x400 VAC input and 95% efficiency. Continuous output of 7 A and peak current of 20 A give the unit confident drive capability during changing load demands. IP20 protection supports dependable cabinet integration and completes a well-balanced motion control solution.
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Product Description:
The DMC50720-AC is a multi-axis motion controller developed by Danaher for the DMC Motion Controllers series. This unit serves as the power stage that drives servomotors in automated machining cells, conveyor zones, and material-handling stations by converting three-phase power into regulated current that positions each axis precisely. By integrating velocity, torque, and position loops into a single enclosure, the controller simplifies cabinet wiring and gives machine builders a compact method for coordinating complex, synchronized movements on the factory floor.
The power section accepts a line supply of 3 × 400 VAC and provides a continuous output current of 7 A, while short acceleration bursts can reach a peak current of 20 A. With a continuous power rating of 3.4 kW, the device can support medium-frame servomotors while remaining within its thermal limits. Its internal IGBTs switch at 4 kHz, which affects current ripple and acoustic noise during operation. Power conversion operates at 95% efficiency, limiting cabinet heat and reducing cooling requirements. This performance helps the controller maintain regulated motor current during sustained operation without placing an excessive thermal load on the surrounding panel.
A control bandwidth of 2 kHz allows the position loop to follow rapid command changes while maintaining stable operation with motors that have a minimum inductance of 8 mH. The integrated dynamic-brake circuit can absorb up to 18.7 A and 10 kJ, while its onboard resistor dissipates 40 W so deceleration does not overload the DC bus. The housing measures 234 mm high, 76 mm wide, and 227 mm deep, allowing installation in high-density panel layouts. The vented enclosure provides IP20 protection and is intended for installation inside a filtered cabinet. Total conduction and switching losses remain below 90 W, helping control internal temperature during continuous operation. Adequate panel clearance should be maintained around the vents so heat can leave the enclosure without obstructing adjacent equipment.
