Copley Controls: Stepnet Plus Module, 2-Axis (SP2 Series)

14-90V VDC CANopen Drive for Stepper Motors

Description

Stepnet SP2 is a dual-axis, high-performance, DC powered drive for position, and velocity control of stepper motors via CANopen. Using advanced FPGA technology, the SP2 provides a significant reduction in the cost per node in multi-axis CANopen systems. Each of the two drives in the SP2 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 ±10V analog position/velocity/torque, and PWM velocity/torque control. Servo mode allows ±10V analog or digital PWM control of position/velocity/torque. In microstepping mode stepper command pulses and master encoder for camming or gearing is supported.

Twenty-three high-speed digital inputs with programmable functions are provided, and two low-speed inputs for motor temperature switches.

An SLI (Switch & LED Interface) function is supported by another high-speed input and four high-speed digital outputs. If not used for SLI, the input and outputs are programmable for other functions. Three open-drain MOSFET can drive loads powered up to 24 Vdc.

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

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

Dimensions: mm [in]

Model No.: SP2-090-07, SP2-090-10