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Copley Controls: Stepnet Plus Module, 1-Axis (SPM Series)
14-90V VDC CANopen Drive for Stepper Motors
Description
Stepnet SPM is a high-performance, DC powered servo drive for control of stepper motors via CANopen. The SPM operates as an CANopen node using DSP-402 for motion control devices. Supported modes include: Profile Position, Profile Velocity, Interpolated Position Mode (PVT), and Homing.
With encoder feedback a stepper can be operated as a brushless servo motor enabling ±10V analog or digital PWM velocity or torque control in addition to CANopen. Direct position control from pulses in CW/CCW, Pulse/Dir, or Quad A/B encoder format works in either microstepping or servo modes.
Twelve high-speed digital inputs with programmable functions are provided, and a lower-speed input for a motor temperature switch.
An SLI (Serial Peripheral 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. Two 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
Position (Microstepping)
Position/Velocity/Torque (Servo Mode)
Indexer, Point-to-Point, PVT
Camming, Gearing
Command Interface
CANopen
ASCII and discrete I/O
Stepper commands
±10V or PWM velocity/torque (servo mode)
Master encoder (Gearing/Camming)
Communications
RS-232
Feedback
Incremental
Digital quad A/B encoder
I/O
Digital: 14 inputs, 6 outputs
Analog: 1 input
Dimensions: mm [in]
76.3 x 58.2 x 20.5 [3.01 x 2.29 x 0.81]
Model No.: SPM-090-07, SPM-090-10