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TB157 Rev1 MPG Specifications and Compatibility w/ Control Pendant
Overview
This document details the use and technical specifications for our currently available MPGs Manual Pulse
Generators Also listed in this document are the requirements for third party MPG compatibility with our
control systems and control pendant
MPG Use
MPGs are manually operated optical encoders used in conjunction with the control pendant for controlling axis
movement They are not only limited to jogging but may be used with the CNC control in manual mode to
machine parts giving the user full control over the machines computerized precision In other words MPGs
offer the precision of CNC control with the feel and operation of a hand turned machine
MPG Specifications
We currently offer two MPGs for use with our control pendant a 32 step and a 100 step model Both MPGs
come with an axis selector switch and our MPGPIC board that communicates directly with the control pendant
through a supplied cable Both MPG models mount inside the handle of the control pendant for convenient
use *Note Reference Tech Bulletin TB095 for MPG installation in control pendant Â
Model Agilent 32 Step Nemicon 100 Step
Type TTL TTL
Resolution Steps/Rev 32 100
Power Supply Vdc 4 5 5 5 4 5 5 5
Max Supply Current
mA 40 60
Output Wave Type Square in Quadrature Square in Quadrature
High Level Output Vdc >2 4 >3 5
Low Level Output Vdc < 0 5 < 0 4
Operating Temp ?aC 0 70 10 60
Requirements for Compatibility w/ Control Pendant and CNC7 Control
The control pendant and CNC7 control will support third party MPGs that meet these requirements
1 Our MPGPIC board must be purchased in order for any MPG to communicate with the control pendant
2 The third party MPG must be a TTL type optical encoder
3 The output must be a dual square wave in quadrature
4 Operating voltage must be 5vdc +/ 10% with a max current no more than 80mA
Wiring of MPG Components
The diagram below details the connections between the MPG hand wheel the axis selector switch and the
control pendant *Note If using third party MPG hand wheel board will only accommodate TTL style MPG
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Document History
Rev1 Created on 2003 05 05