Nidec Industrial Drives: Unidrive SP, AC Drives & Servo

Nidec Drives & Servo Systems: Global Supply Since 2018

Nidec Corporation, headquartered in Kyoto, Japan, is one of the world’s largest manufacturers of electric motors and industrial drive systems. Through its Control Techniques brand, Nidec produces the widely specified Unidrive SP, Commander, and M-series variable speed drives, as well as DST servo motors and a comprehensive range of fieldbus option modules. These products are deployed across manufacturing, material handling, HVAC, water treatment, and process automation applications in industrial facilities worldwide. Atlantech Drives & Controls has been sourcing and supplying Nidec drive systems and components since 2018 through an established network of international partners, serving maintenance engineers and procurement teams across the EU, the Americas, and worldwide.

Unidrive SP Servo & AC Drives

The Unidrive SP is Nidec Control Techniques’ flagship modular drive platform, capable of operating in open-loop, closed-loop vector, and servo modes from a single hardware unit. Available in frame sizes 1 through 6 covering power ranges from 0.37 kW to 132 kW at 400V, the SP series is widely deployed in coordinated multi-axis motion and high-performance single-axis servo applications. Atlantech supplies models across the SP range including the SP1401, SP2401, SP3401, SP4401, and SP6401, as well as SPMD panel-mount variants such as the SPMD1402 and SPMD1403.

M-Series Variable Speed Drives

The Nidec M-series encompasses the M200, M400, and M700 families of general-purpose and high-performance AC variable speed drives, designed for pump, fan, compressor, and conveyor applications requiring energy-efficient motor control. The M700 series offers advanced closed-loop vector control with encoder feedback for demanding process applications, while the M200 and M400 target cost-effective open-loop speed control for standard machinery. Atlantech supplies models including the M200-08401340A, M400-07400660, M701-08401340A, M701-08201320A, and M701-03200066A.

DST Servo Motors & SM Option Modules

The DST series are Nidec Control Techniques’ servo motors, designed to pair with Unidrive SP and other Control Techniques servo drive platforms. Available in multiple frame sizes and winding configurations, DST motors provide the torque density and encoder precision required for high-dynamic servo axes in packaging, printing, and robotics applications. Atlantech supplies DST models including the DST1403P, DST1404P, and DST1405. For fieldbus integration, SM option modules extend the Unidrive SP and M700 with additional connectivity — available references include SM-CANopen, SM-Resolver, and SM-APS-Lite.

Legacy, Discontinued & Hard-to-Find Nidec Parts

The Unidrive SP has been in active deployment for over two decades and remains installed across thousands of machines globally. As Nidec periodically transitions customers to newer platforms, sourcing legacy, discontinued, and obsolete SP-series drives and compatible option modules through official channels becomes progressively more difficult. Atlantech’s international partner network allows us to locate hard-to-find Nidec Control Techniques components — including out-of-production SP frame sizes and legacy SM modules — to keep existing machinery running without a full drive replacement programme.

Frequently Asked Questions

Q: Can you supply Unidrive SP drives as direct replacements for failed units on existing machinery?
A: Yes. Provide the full drive model reference including the frame size and voltage rating and our team will confirm availability within 24 hours. We supply both current-production and sourced surplus SP units.

Q: Do you supply Nidec SM option modules to extend existing Unidrive SP or M700 installations?
A: Yes. We supply SM option modules for fieldbus expansion, encoder feedback, and motion control. Contact us with your drive model and the required communication protocol for compatibility confirmation.