Copley Controls: Stepnet Plus Module, 4-Axis (SP4 Series)

14-90V VDC CANopen Drive for Stepper Motors

Description

Stepnet SP4 is a four-axis, high-performance, DC powered drive for position, and velocity control of stepper motors via CANopen. Using advanced FPGA technology, the SP4 provides a significant reduction in the cost per node in multi-axis CANopen systems.

Each of the four axes in the SP4 operate as CANopen nodes under DSP-402 for motion control devices. Supported modes include: Profile Position-Velocity, Interpolated Position Mode (PVT), and Homing.

Servo mode allows position/velocity/torque control. Servo mode allows CANopen or digital PWM control of position/velocity/torque. In microstepping mode stepper command pulses and master encoder for camming or gearing is supported.

Twenty-four high-speed digital inputs with programmable functions are provided. There are eight MOSFET outputs that are 24V compatible.

An SPI port is provided with one high-speed input and four high-speed digital outputs. If not used for SPI, the input and outputs are programmable for other functions.

An RS-232 serial port provides a connection to Copley’s CME2 software for commissioning, firmware upgrading, and saving configurations to flash memory. The CANopen port is optically isolated.

Drive power is transformer-isolated DC from regulated or unregulated power supplies. An AuxHV input is provided for “keep-alive” operation permitting the drive power stage to be completely powered down without losing position information, or communications with the control system.

Control Modes

Command Interface

Communications

Feedback

I/O Digital

I/O SPI

Dimensions: mm [in]