DC/AC Motor Controls
MOTORCONTROLLER
When a drive system is powered by a direct current (DC), a DC-AC motor controller can be used to control 3-phase motors. These motors are widely used in applications that require high efficiency, accuracy and reliable performance. The DC voltage is often a battery or battery pack for mobile applications or emergency supplies.
The principle of DC-AC motor control for 3-phase motors is based on the conversion of the direct current (DC) to alternating current (AC) required by the motor. The motor controller consists of an inverter that converts the direct current to a three-phase alternating current that drives the stator windings of the motor.
autotuning
MOTORCONTROLLER
Our motor controllers come with the user-friendly EMT software tool that is freely accessible to users. The software provides advanced electric motor control and monitoring functions, making it easy to optimize the performance of your drive.
The CAN-USB connection allows fast and efficient communication between the motor controller and the software. This makes it possible to configure and control the motor in real time.
One of the most valuable features of the software is the Autotuning function. With this function, new motors can be easily tuned without detailed technical knowledge or information of the electric motor. The autotuning procedure automatically measures the key parameters of the electric motor so that it performs optimally in its specific application. This makes it possible to quickly tune the electric motor of new systems or new applications with few errors.
Sensorless
MOTORCONTROLLER
There can be several reasons for choosing a drive solution that operates without a physical positioning system. Dual shaft end, environmental factors, installation space, cost savings are some examples.
In order to offer customers a solution for this as well, in addition to the possibility of working with a positioning system, the EMT motor controller has the ability to control permanent magnet motors and asynchronous motors sensorlessly.
The Sensorless FOC (Sensorless Field Oriented Control) principle is then used. In Sensorless FOC, the rotor position or speed of the rotor is not directly measured by an encoder, but is derived from the electrical signals generated by the motor. This is done by using algorithms that analyze the electromagnetic properties of the motor, such as the voltage and current in the stator winding, and determine the rotor position or rotor speed indirectly.
The Sensorless FOC principle that EMT motor control works with is the Flux Observer Algorithm method.
models
| Specifications | Unit | SMC-48-100 | SMC-100-100 | SMC-48-200 | SMC-72-200 |
|---|---|---|---|---|---|
| Rated DC voltage (Udc) | VDC | 24–48 | 100 | 24–48 | 48–72 |
| Voltage range (Udc) | VDC | 14–57 | (70–125) | 14–57 | 14–80 |
| Motor current continuous (S1) | ARMS | 100 | 125 | 200 | 200 |
| Motor current continuous (S1) water-cooled | ARMS | 130 | – | 250 | – |
| Protection class | IP66 | ||||
| Switching frequency | *kHz | 20 | |||
| Weight | kg | 1,4 | 1,4 | 2,3 | 2,3 |
| Dimensions | L x W x H (mm) | 195,8 x 111,8 x 52 | 195,8 x 111,8 x 52 | 200 x 140 x 80 | 200 x 140 x 80 |
| Dimensions with water cooling | L x W x H (mm) | 195,8 x 111,8 x 82 | – | 200 x 140 x 110 | – |
Features:
- Temperature sensor PT1000 or KTY84-130
- UVW encoder of sensorless
- PMSM and 3-phase asynchronous motors
- Parameterizing by Autotuning
- EMT PC tool software
- Water cooling optional
* can be customized