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Watlow CAS User Manual

Page 4

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Contents

ii CAS User’s Guide

T/C Inputs ..................................................................... 26
Current Inputs ............................................................... 26
Voltage Inputs............................................................... 27
Unused Inputs ............................................................... 27
Back Terminal Block Connections ............................... 27

Serial Communications....................................................... 28

RS-232 Interface ........................................................... 28
RS-485 Interface ........................................................... 28

Using the CAS ............................................................33

Introduction......................................................................... 33
Front Panel .......................................................................... 34

Front Panel Keys........................................................... 34

Single Channel Display ...................................................... 36
Job Display ......................................................................... 37
Change Setpoint .................................................................. 38
Alarms................................................................................. 39

Setup ...........................................................................41

How to Enter the Setup Menus ..................................... 41
How to Edit a Menu...................................................... 41

CAS Menus......................................................................... 42
Setup Global Parameters Menu .......................................... 43

Load a Job ..................................................................... 43
Save Setup to Job .......................................................... 44
Job Select Inputs ........................................................... 44
Job Select Input Polarity ............................................... 45
Startup Alarm Delay ..................................................... 45
Keyboard Lock Status................................................... 46
Scanner Address ........................................................... 46
Communications Error Checking ................................. 46
Communications Baud Rate ......................................... 47
Allen-Bradley Protocol ................................................. 47
AC Line Frequency....................................................... 47
Digital Output Polarity.................................................. 48
External Alarm Acknowledge Input ............................. 48
EPROM Information..................................................... 48

Setup Channel Inputs .......................................................... 49

Input Type..................................................................... 49
Pulse Sample Time ....................................................... 50
Channel Name............................................................... 50
Input Units .................................................................... 51
Input Reading Offset..................................................... 51
Linear Scaling Menus ................................................... 52