Small, intelligent, powerful and at the same time extremely cost-effective - this is how integrated drives can be described in a few words. The fully digital servo positioning units are primarily intended for use in decentralized multi-axis applications where many motors are installed in one machine. These flexible space miracles are used primarily in robotics and automation and, thanks to their performance, are driving the success of the industry.
Within automation, the drive forms the heart of the system, as it brings the machine to life and represents the decisive interface. The fact that there must be differently configured drive types for different applications becomes clear at the latest when one takes a closer look at installation space, budget and the special customer requirements. For example, in an application the drive must be able to withstand strong vibrations or is exposed to high temperatures. In other applications, however, the requirement is to install as few cables and additional modules as possible due to the limited installation space. The latter is becoming increasingly important, particularly in automation and robotics. Decentralized drives are experiencing an upswing here and are finding their place in almost every application. However, if you take a closer look at the decentralized drives currently on the market, most electric motors are fitted with the controller system rather than integrated - the installation space that actually needs to be gained is minimized, since space is required, especially at height.
This is completely different with the integrated drives from Heidrive. Here, a 24/48 V controller is placed directly in the motor profile, which means that the overall length differs only by a few millimetres from standard HMD servo motors. The flange dimensions of either 40x40 mm or 60x60 mm remain largely unaffected by the integration of the electronics. The integration of the servocontrollers means that control cabinets are virtually unnecessary and the wiring effort is significantly reduced.
While less cabling effort and significantly smaller control cabinets are among the directly visible advantages of these drive systems, the astonishing performance and control capabilities of these little power miracles are also impressive. A further advantage of the integrated drives is the low detent torque with high energy efficiency and optimised temperature management. In addition to the 60mm flange-sized integrated drives offered since 2016, Heidrive has now added a further size to its product portfolio. The HMPi04 with its 40x40 mm flange size is the smallest in its series and therefore particularly attractive for applications where space is at a premium. The small space miracle achieves an output of up to 125 W. and is available in various speed levels (3,000, 6,000 min-1 or rpm).
For positioning, the electronics have been adapted to the new and in-house developed HES/HEM encoders (Heidrive Encoder Singleturn/Heidrive Encoder Multiturn). These require an accuracy of up to 12 bits despite the small installation space of only approx. 3 to 6 mm.
In order to dissipate the heat generated more quickly, an optimized thermal connection of the power output stage has been created. The cooling fins in the housing also ensure high heat dissipation, which can be increased from 200 W to 300 W continuous power in the HMDi06 by an optional fan. The standard protection class is IP54 and can be increased to IP65 if required.
The HMDi06 electronics are also available in two different versions. The less expensive version, with standard CAN driver and a common power supply for logic and power, has the basic functions. The premium version offers the possibility to decouple the supply of logic and power and is protected by a galvanically isolated CAN driver.
The modern and compact drive concepts can be integrated into a wide range of automation solutions and enable flexible and cost-effective applications. Thus, the powerful and multifunctional motors can perform precise handling tasks in automation technology and robotics. They are also used in production for the automotive industry, because the compact and cost-effective system offers many advantages for decentralized 24/48 V drives. Meanwhile, special integrated servo drives, also with direct gear mounting, are also used for the finest dosing devices, where high dynamics with low conversion are required.
In addition, despite the special developments, there is the possibility of using the modular system from Heidrive. In this way, an unlimited combination with different sizes, planetary gears and connectors is possible.
The HeiMotion servo motors with attached electronics, on the other hand, are used especially in performance-oriented applications.
The features at a glance:
- Highest synchronism and accuracy
- High efficiency
- Optimized moments of inertia
- Compact design
- High power density
- Low cogging torque
- Energy efficiency
- Optimized temperature management