drive electronics SK 500E - Modular frequency inverter

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SK 500E - Modular frequency inverter

Following its introduction in the market the SK 500E product series has become successfully established and now the power range has been extended to 90kW. This extends the success factors of these components to a wider field of applications.


Modular compact inverter: SK 500E

With the SK 500E series of frequency inverters, Getriebebau NORD offers intelligent and costeffective drive solutions with scaleable equipment options, which are all fully compatible with regard to motor performance range, supply voltage and sizes. The basis for all models is a well-equipped basic unit with expansion possibilities through optional modules. SK 500E inverters are suitable for all application areas and can be easily adapted to specific requirements with plug-in technology units.


Performance grading:

The SK 500E product series offers a wide range of features which are necessary for application-specific drive solutions. Through different configuration levels, these can be used "in the same box". The inverters include the following functions, which are state-of-the-art for industrial applications.

  • "Safe stop" (STO) as per EN ISO 13849-1 Cat.4,
    Performance level e EN 61508 SIL3

  • CANopen interface on board

  • Incremental encoder input (TTL) on board

  • Absolute encoder via CANopen, SSi, BiSS, Hiperface, EnDat

  • POSICON positioning control

  • External 24V power supply for control board

  • Synchronous motor operation (PMSM)

  • PLC logic function


Sizes 1 - 4 (0.25 - 7.5 kW):
Frequency inverter SK 500E with integrated mains unit / SK 505E with external 24V supply

SK 500E / SK 505E basic equipment:

  • Sensorless current vector control (ISD control)

  • Line filter Class C2, Class C1 up to 5 m

  • Brake management, electro-mechanical motor brakes

  • Brake chopper for braking resistor

  • RS 232 PC diagnostic interface

  • 4 switchable parameter sets

  • All normal drive functions

  • Automatic flux optimisation (energy saving function).

  • Process controller / PID controller

  • Consistent parameter structure

  • Simple to operate

  • All common field bus systems

  • Factory setting for parameters for standard applications

  • Scalable display values

  • High quality regulation and short reaction times


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Q:What is the understanding of step motor driven segmentation? Segmentation, 6400?
For example: A TD7578 two-phase stepper motor drives, subdivided into 6400, then drive to step away from the Angle of 32 subdivision, assumes that the driver is 3 A stepper motor, gear drive are also set in 3 A, each segment of the current drive is: 3/32 = 0.09375 A The actuator receives A pulse instruction, which assigns the 0.09375 A current to the step motor. Because this is DSP digital drive, its algorithm is more accurate. If an analog control drive is a value close to the value, the motor generates a different electric current. In fact, the actuator is a low level signal that controls the switch of the step motor current, which makes the step of the motor work step by step.
Q:Step motor drive, static current setting, what is the difference between setting ON or OFF?
This is the automatic half flow function called stepping motor. Static refers to the operation of the motor when the motor is not running. In practice, it is judged by judging the impulse signals that are driven by the upper machine. Typically, the pulse stops the actual value of 100ms or 1-2s by halving or subtracting the set value of the stop state. When set to ON, turn ON this feature. Can reduce electric motor and drive heat, prolong service life, improve product reliability and so on.
Q:Step forward motor single pulse/double pulse?
The motor is in the circuit with the letter "G". Its main function is to use mechanical energy to convert into electricity, and the most commonly used is to use heat energy and water energy to push the rotor of the generator to generate electricity.
Q:How is the single chip machine controlled
The single chip machine only outputs the signal, which is driven by the isolated circuit and the power switch circuit. Control ordinary three asynchronous motor can microcontroller output signal after the triode drive a small power relay, ac contactor, driven by relay and motor control. It can also be used as a single chip to drive the power relay directly after the triode is enlarged. There are a lot of methods. As for the driver servo, the signal of the single chip port can be directly driven by the decoupled isolation, and the actuating signal required by the servo driver itself is a weak signal.
Q:What is the function of an electric motor
The motor drive is generally referred to as the step motor drive dc servo driver and ac servo driver. The use of the actuator is because the motor of these motors needs to be replaced and so on. Not all motors require actuators, such as pump fans, depending on the structure of the motor. The motor drive on the electric car is used to adjust the torque, which is the force, and the third is to turn the motor. There is also a protective function, which controls the movement of the motor by controlling the actuator. It's like a TV remote
Q:What is the step motor drive card?
Drive CARDS are rare now; The drive card is integrated with the drive and control system, but the driver current is small, the micro motor can; Drives are usually made of large current, generally receiving pulse signals, which have signal amplification and division of labor. Motion control card is a kind of control system, a PCI slot and USB, take off the aircraft, to programming, a required frequency pulse and direction of the model to the stepper motor drives, has devoted more than a piece of card to control motor, deceleration and interpolation function and IO, and other functions.
Q:How to select the driver after the step motor is selected
Drive parameters must match and stepper motor The most main is your stepper motor is how the operation of the low speed high speed or frequent restart (response) As far as I know There is no one move slowly into the driver can do a full range of every move slowly into the emphasis of the driver must be biased So a move slowly into electricity opportunities have a few drivers can match
Q:In the case of a single chip and motor driven module, is it not working?
It's called the use of the light decouple, but you put the ground wire together and you're not isolated. The microcomputer should be isolated from the motor
Q:What is the pulse voltage of the step motor driver
The input signal of the normal step motor drive is adjusted for 5V level. If the voltage of the control signal is greater than 5V, it must also be added to the current resistance. The size of the extra resistance should be explained in the driver documentation. But more outputs signals such as PLC control equipment for both 12 v, 24 v, if the driver is supporting, may drive the input has to adapt to the 12 v or 24 v voltage. Therefore, if you want to replace the existing drive, it is best to understand the voltage of the device's output control signal first. If it is your own device that wants to control the drive of the finished product, and there is no data on the drive, you can try the effect with a low voltage signal, such as a 5V signal.
Q:Hello, my step is in the motor drive the light is not bright, the motor is not locked
The step motor is an open loop controlling element which converts the electrical pulse signal into angular displacement or line displacement. In the case of the overload, motor speed, stop position depends only on the pulse signal frequency and pulse number, and not affected by load change, when the stepper driver receives a pulse signal, it is driving a stepper motor according to set the direction of a fixed Angle, known as the "step Angle", its rotation is based on the Angle of the fixed step by step. It can control the amount of angular displacement by controlling the number of pulses, so as to achieve accurate positioning. At the same time, the speed and acceleration of the motor can be controlled by controlling the pulse frequency to achieve the goal of speed adjustment

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