NEW SERVO DRIVE INCREASES CONTROL POTENTIAL FOR ETHERNET-BASED NETWORKS

Nidec has increased the scope of its motion control portfolio by releasing an Ethernet-onboard model of its latest generation Digitax HD servo drive range.

The Digitax M750 is a network servo drive that supports Profinet RT, Ethernet/IP and Modbus TCP on the same onboard Ethernet switch, allowing for easy integration of its high performance motor control in any automation ecosystem. Digitax HD M750’s motion capability includes 300% peak overload, 62 µs current loop and 16 kHz switching frequency as well as onboard advanced motion controller for distributed 1.5 axis motion and synchronised peer-to-peer communication over Ethernet.

Minimum size is also a key benefit: the drive is just 40 mm wide with 25 drives fitting into a meter of cabinet space at ratings between 0.7 Nm – 51 Nm with 153 Nm peak, and between 1.5 A – 16 A with 48 A peak. Digitax HD M750 Ethernet fits into a cabinet just 200 mm deep and cabinet height is reduced by the patented Ultraflow™ system, which expels heat directly outside the cabinet without requiring an air channel between drive rows.

The Digitax HD series is highly flexible in its configuration and is able to operate both standalone or as part of a modular common DC bus system. M750 can also function under a centralised control system or can create decentralised control. With an onboard advanced 1.5 axis motion controller and utilising Control Techniques’ Real Time Motion over Ethernet (RTMoE) communications protocol, Digitax HD M750 provides synchronised communication between drives, enhancing control performance with a 1 ms cycle time for synchronous cyclic data and less than 1 us jitter for network synchronisation.

Digitax HD has also been designed to make installation and commissioning as rapid and easy as possible. Features include easy-access pluggable connectors and a dedicated multi-axis paralleling kit for rapid installation; integrated braking resistor and electronic motor name plate for faster setup; and quick commissioning using the Unidrive M Connect PC tool - or an optional SD card. For programming automation and motion control, the Machine Control Studio PC tool provides a flexible and intuitive IEC61131 environment.

The Digitax HD drives are part of a drive-motor package and the Unimotor HD is a high dynamic AC brushless servo motor, optimised in their compatibility. With a wide torque range, from 0.72 Nm up to 85 Nm with 255 Nm peak, rated speeds from 1,000 to 6,000 rpm, several inertia levels and a broad selection of feedback options, Unimotor HD is the leading servo motor for high dynamic applications.