The STEVAL-ETH001V1 servo drive evaluation board has been developed to address three-phase PMSM applications oriented to multi-axial position control and connectivity. The evaluation board embeds a motor control power stage, a digital actuation section and a power management section.The motor control power stage hosts the STDRIVE101 half-bridge gate driver and six STH270N8F7-2 power MOSFETs, featuring real-time connectivity with Ethercat communication protocol supported by the NETX90 network controller, whereas the digital actuation section hosts an industrial IO management section with CLT03-2Q3 (input) and IPS160H (output). The power management section is powered by L7987, L7805CD2T-TR and LD39150DT33-R devices.The STEVAL-ETH001V1 is equipped with two RJ45 connectors for daisy chain connection and an RS485 interface for digital encoder or host connection powered by ST3485EI. For a better noise immunity, the PCB is characterized by a 6-layer stack and an insulated track for supply line and ground. A quadrature encoder interface with index is also present.
• Real-time communication via Ethercat protocol• Three-phase motor drive inverter based on STDRIVE101 gate driver and STH270N8F7-2 power MOSFET• STM32F767ZI microcontroller Arm®32-bit Cortex®-M7• NETX90 network controller• Main supply voltage up to 48 V with a max. overvoltage robustness of 60 V• Max. power dissipation up to 700 W• Motor brake dissipative energy circuit• Digital actuation section for industrial loads• RS485 interface for digital encoder and host interface• On-board DC-DC converter and linear regulator