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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
Position (Microstepping)
Position/Velocity/Torque (Servo Mode)
Indexer, Point-to-Point, PVT
Camming, Gearing
Command Interface
CANopen
ASCII and discrete I/O
Stepper commands
Master encoder (Gearing/Camming)
Communications
RS-232
Feedback
Digital quad A/B/X encoder
I/O Digital
24 HS inputs
8 MOSFET outputs
I/O SPI
1 HS input
4 HS outputs
Dimensions: mm [in]
101.6 x 76.2 x 20.83 [4.00 x 3.00 x 0.83]