A servo drive is an executive system operating in a closed-loop closed loop, consisting of a motor, a controller and an encoder used as a feedback element. Kinco's high-performance servomotors are brushless synchronous AC synchronous motors with permanent magnets mounted on the rotor. The use of high quality permanent magnets has allowed to significantly reduce the dimensions and weight of the engine, while maintaining the same power.
These drives are characterized by high efficiency, which remains constant in a large load range, and can also achieve high angular acceleration of the rotor. They are also characterized by good dynamic and regulating properties, because for permanent magnet motors it is appropriate to quickly respond to control system commands resulting from a relatively small moment of inertia. The cost of running these types of engines is low due to the lack of mechanical (quickly wearing out) brushes as well as prolonged lubrication periods of the bearings.
WObit proposes servo motors with flange sizes from 40 to 180 mm. The nominal torque range is from 0.64 Nm up to 48 Nm. As a standard, all servo motors have a built-in incremental encoder with a resolution of 2500 imp./obr.
The new is the engine series equipped with single-turn or multi-turn absolute encoder (it provides memory for both the rotation angle and the number of revolutions). It is used wherever switching off the power would be detrimental to the system. The absolute encoder remembers the position when the power is turned off, and the servo drive can continue to work without the need for homing, which works in all systems with more than one axis.
Available motor power, depending on the series, is from 200 W to 7.5 kW with an incremental encoder or up to 3 kW with an absolute encoder. Importantly, especially in vertical axes, Kinco servo motors can be equipped with an electromagnetic safety brake.
An extremely important element of the servo drive is the servo controller, which allows you to achieve the desired effect, for example, the right position, number of revolutions or speed. Kinco offers four series of controllers with wide possibilities and an attractive price. The basic CD series is designed to control three-phase servo motors supplied with alternating current.
The controllers communicate via the RS232 interface and can work in several modes: step / direction (analogous to stepper motors), speed control, torque, position, travel to the preset end position. The acceleration and deceleration times of the servo drives of this series are at 10ms. This allows you to set a very steep work ramp. The CD series is perfect for less advanced applications, for which the functions offered are sufficient, while maintaining a very attractive price.
The latest economic servo controllers from the FD series, in comparison to the CD series, have been additionally equipped with RS485 Modbus RTU and CANopen communication interfaces, thanks to which they can communicate with the PLC controller or with the operator panel.
A new version is the controller version prepared for cooperation with engines equipped with an absolute encoder and the ability to choose a driver with an EtherCAT interface. This protocol is based on the physical layer of the Ethernet network, which due to the high data rate, a large range, allowing the construction of remote and dispersed nodes is one of the most popular communication standards in the industry.
The greater number of communication interfaces to choose from, as well as the possibility of cooperation with a motor equipped with an absolute encoder significantly increases the number of applications for drives with this controller.
Like drivers from other series, they can work in several modes:
1. Step / direction (analogous to stepper motors)
2. Speed control
3. Torque control
4. Access to the prevailing home position