SMAC VLC-2-EIP User Manual

5
Introduction
The VLC-2-EIP is an ODVA-conformant Ethernet/IP servo drive that is based on SMAC’s VLC-25-07 2-
axis integrated controller/driver and an additional layer that provides the Ethernet/IP connectivity. As
opposed to the traditional daisy-chaining of two separate Ethernet/IP servo drives for the control of
2-axis system such as SMAC’s LCR/LAR series actuators, a single VLC-2-EIP is able to achieve the same
task at a lower cost and a lower installation complexity.
The VLC part of the servo drive 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 Ethernet/IP master. Background knowledge
on the VLC is required to configure the servo parameters of the VLC-2-EIP. Please refer to the latest
VLC-25-07 manual for more information on the servo drive parameters and programming.
Table 1.1. VLC-EIP-25 specifications (based on Hardware version 1.0).
Description
Ethernet/IP 2-axis servo motor controller/driver
Operating Modes
Position, Velocity, Torque
Filter Algorithm
PID
Max. Servo Loop Rate
100 µS
Trajectory Generator
Trapezoidal, electronic gearing
Servo Position Feedback
Incremental Encoder with Index
Output
PWM (space-vector-modulated), 6.0 A Continuous and 7.8 A
Peak.
Motor Type
3-Phase Brushless, DC Brushed, DC Linear Actuator
PWM Frequency
20.0 KHz
Current resolution
2.93 mA (approximate)
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
General Purpose Digital I/O
4x opto-isolated digital inputs, 5V to 24 V max
4x opto-isolated digital outputs, 60V, 200 mA max
Dedicated Digital I/O
2x opto-isolated coarse home inputs
STO (Safe Torque Off)
2x STO opto-isolated digital inputs, 5V to 24 V max
1x STO opto-isolated feedback output, 60V, 200 mA max
Analog Inputs
2x 12-bit pseudo-differential analog inputs, 0 to +/- 10V range
3x 12-bit analog inputs, 0V to 10V range (0V to <10V optional)
Analog Outputs
2x 12-bit analog outputs, 0V to 10V range (0V to 5V optional)

SMAC VLC-2-EIP Specifications

General

Brand	SMAC
Model	VLC-2-EIP
Category	Servo Drives
Language	English