L720-012EL7 by Sanyo Denki

The L720-012EL7 DC servo motor from Sanyo Denki is a precision actuator in the Super DC Servo Motors series, engineered for demanding industrial automation tasks. This compact unit operates at a rated voltage of 24 V DC and delivers high torque for R/X axes, making it ideally suited for both X- and R-axis positioning applications. Its robust air-cooled design and IP54 protection rating ensure reliable performance in environments with dust and incidental moisture exposure. The motor supports both horizontal or vertical mounting types, allowing flexible installation with the shaft oriented up, down, or in any plane. Engineered for a broad operating temperature range of –10°C to +60°C, it maintains consistent performance across varying ambient conditions. The inclusion of a versatile control interface compatible with both analog and digital servo drives simplifies integration into existing motion-control systems.

The L720-012EL7 excels in dynamic performance through its continuous current of 12 A and peak current of 24 A capacity for short-duration boosts in acceleration. Feedback is provided via a selectable resolver or encoder, with encoder resolutions of several thousand pulses per revolution delivering fine position feedback and smooth motion profiles. Responsive torque control is achieved through an onboard pulse width modulator and advanced feedback loop tuning, ensuring precise control of angular position, velocity, and acceleration. The motor’s current draw scales proportionally with load, providing energy-efficient operation and minimal heat generation under light-duty cycles. Its fast response times and stable, vibration-free output make it well suited for high-speed indexing, pick-and-place, and continuous path applications. With a control interface featuring analog and digital inputs, integration with PLCs and motion controllers is straightforward, supporting complex motion sequences and multi-axis synchronization.

Built for reliability in industrial environments, this servo motor incorporates an air-cooled housing that must maintain adequate ventilation to avoid overheating under extended high-load operation. The IP54-rated enclosure safeguards internal components against particulate ingress, while the rugged construction withstands repetitive torque pulses and short-duration current surges. Installation guidelines recommend a stationary cable layout to prevent wear and a surrounding area clear of combustible materials to ensure safe operation. Its compatibility with digital servo drives and standard industry feedback interfaces simplifies system design and reduces commissioning time. Ideal for CNC machines, robotic positioning, automated assembly, and packaging equipment, the L720-012EL7 delivers dependable performance where precise, high-torque motion control is required.