STEVAL-ISD01KCB

The STEVAL-ISD01KCB is a servo drive board, designed to address all the application use cases, requiring high-power capability, safety function SIL 2 level in the servo motor actuation, with a compact form factor.

The system is a kit, composed by the control board STEVAL-ISD01ACB, and by the power board STEVAL-ISD01BCB.

The servo drive implies the capability to perform position control in a robot joint, in a conveyor belt or other use case. The STEVAL-ISD01ACB has been equipped to support different position sensors, such as incremental encoder, absolute encoder supporting (EnDat, Bi-SS, and hyperlink), resolver.

In consequence of board position (close to the end of the control line), the STEVAL-ISD01KCB has been equipped with several connectivity technologies, serial, with RS-485, CAN and Ethernet with EtherCAT protocol (EtherCAT device not assembled on board).

Safety is ensured with the introduction of Safe Torque Off (STO), Safe Brake Control (SBC) and all the diagnostic functions and architectural solution to achieve the SIL 2 safety level and PLd performance level.

Insulation on board is ensured, using as reference the standard IEC 61800-5-1 for motor control application that requires for the operating bus voltage in use Vbus=600 Vdc, an insulation of 6 kV.

The barrier has been designed to protect the data processing region and then the user, from a possible hazard event coming from the motor section or from a remote PLC used to manage STO signalization management.

The solution, considering the number of components and the power rating, has been designed in a stacked version with a form factor useful to have the possibility to easily mount the hardware on top of the motor.

A dedicated application firmware has been designed in accordance with the STM32Cube framework and embedded in the middleware layer, the stack open source for CANopen and modbus, motor control library MCSDK 5.4.8, and the X-CUBE-STL safety library. STEVAL-ISD01KCB is designed to meet following standards: EN ISO 13849-1:2015, EN ISO 13849-2:2012, IEC/EN 61508:2010, IEC/EN 61800-5-2. To target a functional safety level SIL 2 and performance level PLd.