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42 8LS User’s Guide

Using the 8LS

The table below shows the alarm symbols.

The Alarm display interrupts any system display. If more than one alarm

is present, the first one is shown.

When you press the Alarm Ack key, the flashing stops but the alarm

indicator remains as long as the alarm condition exists.

High process

High deviation

Low deviation

Low process

Tolerance error T

Alarm Symbol

1 2 ... 45 46 47 48 49 50 51 52 53 54 55 ... 139 140

User’s Guide 1
Warranty 2
Contents 3
Using the 8LS 37 4
Setup 45 4
Tuning and Control 75 5
Troubleshooting 85 6
Appendix A: Ramp Soak 89 6
Appendix B: 8LS-CP 105 7
Appendix C: 8LS Cascade 121 7
Glossary 123 7
System Diagram 10
4 8LS User’s Guide 12
Overview 12
Introduction 13
Installation 17
Read This Before Installation 18
Mounting The 8LS 19
12 8LS User’s Guide 20
External Wiring 21
General Wiring Requirements 21
Cable Recommendations 23
Noise Suppression 24
130 VAC ratin 25
RTB Connections 27
Analog Inputs 28
Common Mode Voltage 28
Normal Mode Voltage 28
Grounding 28
Input Scaling 29
Resistor Installation 30
Voltage Inputs 31
Milliamp Inputs 31
Thermocouple Inputs 31
RTD Inputs 32
Pulse Input 33
Carbon Probe Input 33
Control Outputs 35
Pid Control Relay Outputs 36
Primary Analog Outputs 37
CPU Dip Switch 39
RS-232 Connections 41
RS-485 Description 42
RS-485 Connections 43
Using the 8LS 45
Ramp/Soak 47
Man/Auto 47
Displays 48
Single Loop Display 49
Scanning Display 49
Alarm Display 49
SP ? 25 51
6 = AUTO 51
SET? TUNE 51
6 SET MAN 52
How to enter the Setup menus? 53
How to edit a menu? 53
(T/C & RTDs) 54
1 1 1 1 1 1 1 1 54
GLOBALS? 55
Save as Job 56
Restore a Job 56
Set Alarm Delay 56
Set R/S Time Base 57
Lock Panel 57
Power Up Output Status 57
CONTRLLR 58
ADDR? 1 58
COMM ERR 58
CHK? BCC 58
Communication Baud Rate 59
Communication Protocol 59
AC Line Frequency 59
EPROM Version 60
1 SETUP 61
INPUT? 61
1 INPUT 62
TYPE? J 62
1 INPUT 63
SMPLT? 1 63
1 INPUT 63
UNIT = F 63
Linear Scaling Menus 64
High PV Display 64
High RDG Display 64
Low PV Display 64
1 LO RDG 65
1 OFFSET 66
1 SETUP 67
CONTROL ? 67
Heat/Cool PB 68
Heat/Cool TI 68
Heat/Cool TD 68
Heat/Cool Output Filter 68
1 CONTROL 69
SPR? 10 69
OUTPUTS? 70
1 OUTPUTS 71
CT ? 10 71
ACT ?REV 72
LIM ? 100 72
LTM ? C 73
NLO ?OFF 73
1 HT OUT? 74
TERM BLK 74
Setup Alarms 75
Alarm Types 76
Global Alarms 76
Process Alarms 76
High Process Alarm Setpoint 77
High Process Alarm Status 77
Deviation Band Alarm 78
Deviation Band Alarm Status 78
Low Process Alarm Setpoint 79
Low Process Alarm Status 79
Alarm Deadband 80
Alarm Delay 80
INS = 1 1 1 1 81
TEST OUT 82
NR = 1 82
DIG OUT 82
NR01? OFF 82
Tuning and Control 83
Control Modes 84
Digital Output Control Forms 86
Time Proportioning (TP) 86
Output Digital Filter 87
Reverse and Direct Action 87
Integral Term (TI) Settings 89
Derivative Term (TD) Settings 89
Proportional Band Only (P) 90
PI with Derivative (PID) 90
8LS User’s Guide 83 91
84 8LS User’s Guide 92
Troubleshooting 93
Computer Supervised Systems 94
Communications Problems 95
Serial Interface 95
88 8LS User’s Guide 96
Appendix A: Ramp Soak 97
Configuring Ramp/Soak 98
Setting the R/S Time Base 99
Editing R/S Parameters 99
Choosing a Profile to Edit 99
R/S PRO 100
COPY? H 100
A OUTTOL 100
T? 1:00 100
Editing the Ready Setpoint 101
Editing a Segment 102
Setting Segment Time 102
A SEG 01 103
SP? OFF 103
EVENTS? 103
Editing Event Outputs 104
Changing Event States 104
Editing Segment Triggers 104
1234 56 78 105
Setting Segment Tolerance 106
Ending a Profile 106
Repeating a Profile 106
1 SELECT 107
PROF? 0 107
1A00/20S 108
SET? RUN 108
3 73 F 109
73 S 0 109
Bar graph display 110
Ramp/Soak Key Displays 110
How long has the profile run? 110
CYC 1/1 111
SET?HOLD 111
RESET? A 112
Appendix B: 8LS-CP 113
System Configuration 114
Specifications 116
CP Control 117
Applications 118
Carbon Probe 119
Probe Burn Off 120
Burn Off Function 121
1 INPUTS 122
TYPE? K 122
2 INPUTS 122
TYPE? CP 122
CO+CO2% and % of Hydrogen 123
Engineering Units 123
2 OFFSET 124
? 0 ºF 124
2 CP 124
BURNOFF? 124
Burn Off Time Interval 125
Burn Off start Input 125
Burn Off Time Period 126
2CP GAS 127
OUTPN? 0 127
2 HIT %CP 127
. 25 M 0 127
120 8LS User’s Guide 128
Appendix C: 8LS Cascade 129
Choosing the Primary Loop 130
Glossary 131
132 8LS User’s Guide 140

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