Chapter 3 Connecting I/O; Overview; Inputs; General Use Digital Inputs - Galil Motion Control CDS-3310 User Manual

Table of Contents

Chapter 3 Connecting I/O

Overview

This chapter describes the inputs and outputs and their proper connection (see appendix if you are

using an ICM-3300). In addition to encoder and hall inputs, the CDS-3310 provides the I/O listed

below:

The DB-28040 can be used to add an additional 40 digital I/O and 8 analog inputs (see appendix).

Inputs

All digital inputs accept a 0 or 5V signal and are pulled up to 5V. To change the state of the input, the

input must be shorted to ground (GND).

General Use Digital Inputs

The general use inputs are TTL and are labeled DGTL IN 1 to DGTL IN 8 on the silkscreen on the

sheet metal. These inputs can be interrogated with the use of the command TI (Tell Inputs), the

operand _TI, and the function @IN[n] (see Chapter 7, Mathematical Functions and Expressions).

Digital input 8 can accept a differential (two-wire) signal. To connect a single-ended (one wire) signal,

connect to DGTL IN 8+ and leave DGTL IN 8- disconnected.

Limit Switch Inputs

The forward limit switch (FLSx) inhibits motion in the forward direction immediately upon activation

of the switch. The reverse limit switch (RLSx) inhibits motion in the reverse direction immediately

upon activation of the switch. If a limit switch is activated during motion, the controller will make a

decelerated stop using the deceleration rate previously set with the DC command. The motor will

remain on (in a servo state) after the limit switch has been activated and will hold motor position. To

CDS-3310

INPUTS

quantity

description

general

reverse limit

forward limit

home

abort (ELO)

reset

aux encoder

analog

OUTPUTS