ElmoMC SimplIQ Analog Servo Amplifiers-Violin User Manual

VIO Starter Addendum Elmo Motion Control

VIO - STARTER

Addendum to the VIO Operating Manual

Revision 1/07

Introduction

This addendum is intended for the use of the design engineer who uses a VIO amplifier
with a VIO-STARTER evaluation and interface board. This document should be
regarded as an extension to the “VIO Operating Manual”, describing ONLY the pins
and functions (of the VIO amplifier) that are either different or slightly modified from
the description in the “VIO Operating Manual”. The chapters in this document are
sequenced in correlation to the chapters in the “VIO Operating Manual” that cover the
same information.

Rev. 1/07

VIO Starter Addendum Elmo Motion Control

Description

Refer to section 2 in the “VIO Operating Manual”
The VIO-STARTER is an add-on interconnection board for the VIO servo amplifier
that plugs on top of the amplifier. The purpose of this board is the translation of the VIO
solder type pins into screw type terminals thus enabling easy connectivity for evaluation
and low quantity applications.
One to one relationship between board terminals and the pins of the VIO is kept.

Standard Features

Refer to section 2.1 in the “VIO Operating Manual”

q Four LEDs allow convenient diagnostics of the VIO status outputs
q The dedicated digital inputs can be activated by DIP switches
q Scaling resistors are provided for adjusting the current limits and the command

reference

Type designation

VIO-Starter

Pins functions

There is a new terminal strip – J4 with the following functions:

Terminal Function
+VCC Positive supply voltage for the LED’s
VCCRET Return for the LED supply voltage

Current Command Scaling Resistors (R1 & R2)

Refer to section 3.1 in the “VIO Operating Manual”
The user can change the default scale of the differential input (±3.75V) by calculating
and inserting R1 & R2 into the designated solderless terminals. The value of theses
resistors is given by:

R1=R2=5.33*Vcref-20 [KΩ]

Vcref is the desired maximum reference voltage.

If for example, the new desired scale is ±10V, all that is required is to change the
default resistors (0 ohms) to 33Kohm.

External Current Limit – Continuous (ECLC)

Refer to section 3.4 in the “VIO Operating Manual”
A solderless terminal is available for Reclc. It is designated as R3.

External Current Limit – Peak (ECLP)

Refer to section 3.5 in the “VIO Operating Manual”
A solderless terminal is available for Reclp. It is designated as R4.

Rev. 1/07