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VLC-ETC Single Axis EtherCAT Servo Drive

Brand: SMAC Corporation

The VLC-ETC is an EtherCAT servo drive that is based on SMAC's VLC 1-axis integrated controller/driver and an additional layer that provides the EtherCAT connectivity. 

The VLC part is pre-programmed with system macros to accommodate control and monitoring functionalities of the servo drive.

Additional macros can be programmed in the VLC to perform subroutines/functions that can be called from the EtherCAT master. 

Background knowledge on the VLC is required to configure the servo parameters of the VLC-ETC.

Specifications

Description

  • EtherCAT servo drive

Operating Modes

  • Position
  • Velocity
  • Torque
  • Current
  • Homing
  • Phasing

Filter Algorithm

  • PID

Maximum Servo Loop Rate

  • 100 μS

Trajectory Generator

  • Trapezoidal

Servo Position Feedback

  • Incremental Encoder with Index

Output (Standard)

  • PWM (space-vector-modulated)
  • 3.5 Amps Cont. and 6.5 Amps Peak (with proper heat mitigation) at 50 Vdc Max.

Motor Type

  • 3-Phase Brushless
  • DC brushed
  • Linear voice coil

PWM Frequency

  • 20.0 kHz

Current Resolution

  • 5.66 mA

Encoder and Index Input

  • Differential

Encoder Supply Voltage

  • 5 Vdc

Encoder Input Voltage

  • 5.5 Vdc Max., -0.1 Vdc Min.

Encoder Count Rate

  • 40 million encoder counts per Second

Position Range

  • 31 Bits

Velocity Range

  • 31 Bits

Acceleration Range

  • 31 Bits

Digital I/O

  • 4x Opto-Isolated Digital Inputs w/ common: 24 V Level Input
  • 4x Solid-state Relay Outputs w/ common: 200 mA Current Tolerant to 60 V

Analog I/O

  • Input: 1 Channel (differential), 0 to ± 10 V With 12-Bit Resolution.
  • Output: 1 Channel, 0-10 V With 12-Bit Resolution.

STO (Safe Torque Off)

  • 2x Opto-Isolated STO Inputs: 24 V Level Input
  • 1x Opto-Isolated STO Feedback Output: 200 mA Current Tolerant to 60 V

LEDs

  • 2 x 2 LEDs: EtherCAT LED: Run (Green), Error (red) Servo Drive LED: Power ON (Green), Fault (red)

Communication Interface

  • 1x serial/UART (micro USB port): 9600 baud default, selectable between 2400 - 460800 2x EtherCAT RJ-45 ports

Protections

  • Driver overtemperature at 150° C Overcurrent Overload Reverse polarity connection I 2T (excessive) servo position error

VLC Program Space

  • Macro storage: 53728 bytes Max. number of macros: 512 Max. number of program registers: 2048

Documentation

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